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Tina Thien Nhan, DO

Hospitalist · Castro Valley

NPI 1508127960

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
1
1 carrier
Office
1

Offices

1 location · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Hospitals listed: El Camino Health · Good Samaritan Hospital. That is not proof they admit you there this week.

Plans that list them

1 plan · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Nhan’s office at (510) 727-3256 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

Plans whose provider directory lists this clinician
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence C13432 · Cancelled

Licence status: Cancelled · since 1951 · Indiana University School of Medicine.

License has been voluntarily canceled, or the license has been expired for at least five years and has not been renewed. No practice is permitted.

Matched on the licence number without its letter prefix; check the name before relying on it.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Hospitals they work in

2 hospitals

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

  • El Camino HealthMountain View, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of El Camino Health, which runs 2 hospitalsPatients rate it 4 of 5 · 80% would definitely recommend it
    Overall rating: 4 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.291, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.393, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0, Oct 2024 – Sep 2025
  • Good Samaritan HospitalSan Jose, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of HCA Healthcare, which runs 185 hospitals in 19 statesPatients rate it 2 of 5 · 67% would definitely recommend it
    Overall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.337, Oct 2024 – Sep 2025
See every measure and the patient survey for El Camino Health

Behind the star rating — Deaths: 3 better, 5 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 1 better, 9 the same, 1 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at El Camino Health
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.291BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.393BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.96 (0.12 to 1.79) · 2,340 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.02 (0.76 to 1.28)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths167.38 (125.03 to 209.73) · 96 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths2.6 · 68 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.1 · 185 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths11.8 · 200 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths8.9 · 814 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths13 · 842 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.6 · 361 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.6 · 4,633 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.16 (0 to 0.34) · 11,474 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.27 (0.1 to 0.45) · 11,626 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths3.14 (1.39 to 4.9) · 2,814 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths2 (0.61 to 3.39) · 1,327 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.11 (0.8 to 3.43) · 2,641 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths9.39 (4.18 to 14.6) · 1,287 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths6.57 (3.47 to 9.68) · 1,308 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths2.14 (0.71 to 3.57) · 827 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.6 (0.05 to 1.15) · 9,460 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths4.5 · 122 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.993No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.706No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.376No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits15.5 · 218 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits19.5 · 962 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits3.8 · 200 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-17 · 922 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits18.6 · 860 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits18.7 · 827 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits6.1 (4.5 to 8.2) · 313 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits13.4 (10.6 to 16.5) · 313 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits6.1 · 144 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits10.3 · 80 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20.7 · 237 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.8 (10 to 16.1) · 1,639 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.9 (0.8 to 1.1) · 1,619 casesNo differentJan 2024 – Dec 2024

What patients said (1,535 patients answered, 22% of those asked)

Patient survey stars by topic at El Camino Health
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information3
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at El Camino Health
Room was "always" clean75%
Nurses "always" communicated well79%
Doctors "always" communicated well81%
Staff "always" explained61%
Yes, staff "did" give patients this information86%
Yes, staff "did" give patients information about help after discharge86%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)76%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand75%
Nurses "always" listened carefully76%
Nurses "always" treated them with courtesy and respect87%
"Always" quiet at night47%
"YES", patients would definitely recommend the hospital80%
Staff "always" explained possible side effects46%
Yes, staff "did" give patients information about possible symptoms86%
See every measure and the patient survey for Good Samaritan Hospital

Behind the star rating — Deaths: 0 better, 8 the same, 0 worse of 8 measures. Safety: 1 better, 6 the same, 1 worse of 8 measures. Readmissions: 0 better, 5 the same, 4 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Good Samaritan Hospital
Clostridium Difficile (C.Diff)Infections0.337BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.75 (0 to 1.67) · 1,340 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.84 (0.54 to 1.14)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths143.59 (98.7 to 188.49) · 98 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.7 · 45 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.1 · 100 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths12.7 · 270 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths11.3 · 573 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths15.6 · 820 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths8.5 · 482 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3.3 · 3,711 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.12 (0 to 0.3) · 8,866 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.2 (0.01 to 0.38) · 9,051 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths2.65 (0.74 to 4.56) · 1,929 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.8 (0.21 to 3.39) · 670 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.33 (0.88 to 3.78) · 1,836 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths6.73 (0 to 13.46) · 669 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths7.58 (3.96 to 11.19) · 654 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.59 (0.13 to 3.04) · 496 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.27 (0 to 0.87) · 7,373 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths4.1 · 152 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections1.08No differentOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.542No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.484No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.565No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits15.8 · 327 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits24.2 · 703 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits61.1 · 289 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits36.3 · 665 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits25.4 · 856 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits19 · 978 casesNoneJul 2023 – Jun 2025
Rate of readmission after hip/knee replacementUnplanned return visits6.3 · 144 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits12.3 · 46 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits21.2 · 135 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.8 (10.1 to 18.6) · 129 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits1.2 (0.9 to 1.5) · 531 casesNo differentJan 2024 – Dec 2024

What patients said (704 patients answered, 24% of those asked)

Patient survey stars by topic at Good Samaritan Hospital
Cleanliness3
Nurse communication3
Doctor communication2
Communication about medicines2
Discharge information3
Overall hospital rating2
Quietness1
Recommend hospital3
Share of patients giving the best answer at Good Samaritan Hospital
Room was "always" clean66%
Nurses "always" communicated well75%
Doctors "always" communicated well71%
Staff "always" explained54%
Yes, staff "did" give patients this information83%
Yes, staff "did" give patients information about help after discharge81%
Doctors "always" explained things so they could understand66%
Doctors "always" listened carefully69%
Doctors "always" treated them with courtesy and respect78%
Patients who gave a rating of "9" or "10" (high)63%
Staff "always" explained new medications68%
Nurses "always" explained things so they could understand69%
Nurses "always" listened carefully73%
Nurses "always" treated them with courtesy and respect82%
"Always" quiet at night38%
"YES", patients would definitely recommend the hospital67%
Staff "always" explained possible side effects40%
Yes, staff "did" give patients information about possible symptoms86%

Original Medicare doctor bills

$78,110

Medicare paid this office $78,110 for 351 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes123$22,473$105
Initial hospital care with moderate level of medical decision making at least 75 minutes99$15,075$149
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes122$13,605$69
Hospital discharge day management, more than 30 minutes114$12,170$102
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes52$5,939$44
See all 7 services
Every Original Medicare service billed
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes123$22,473$105
Initial hospital care with moderate level of medical decision making at least 75 minutes99$15,075$149
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes122$13,605$69
Hospital discharge day management, more than 30 minutes114$12,170$102
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes52$5,939$44
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes38$4,279$113
Hospital discharge day management, 30 minutes or less49$3,611$74

Who their Medicare patients are

351 Original Medicare patients in 2024. Average age 81 · 85 and older 37% · Women 59% · Also on Medicaid 10% · Health risk score 1.80. At or below the middle of the specialty; the typical hospitalist clinician is at 2.49.

Conditions among them: High blood pressure 75% · Chronic kidney disease 48% · Coronary heart disease 46% · Atrial fibrillation 45% · Heart failure 42% · Diabetes 34% · Depression 31% · Dementia 27% · Stroke 25% · Cancer 24% · COPD 23%.

The office billed $297,617, Medicare allowed $100,128 and paid $78,110; for 863 services of 10 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare by year
2024351863811.80$297,617$78,110
20233721,011812.01$349,437$94,499
2022356928811.79$294,211$77,475
2021304759811.99$258,532$71,210
2020272717801.88$232,174$73,708
20197980763.13$37,255$9,648
2018475939752.85$318,961$83,507
2017525983762.67$313,823$82,680
2016449899742.86$295,292$76,350
201573167753.04$50,159$13,394

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

See the services billed each year

2023: 7 services

Original Medicare services billed in 2023
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes142$31,041$107
Initial hospital care with moderate level of medical decision making at least 75 minutes113$17,910$154
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes128$14,871$71
Hospital discharge day management, more than 30 minutes133$14,790$106
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes68$7,858$45
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes33$4,065$120
Hospital discharge day management, 30 minutes or less37$2,787$75

2022: 10 services

Original Medicare services billed in 2022
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes96$18,058$94
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes110$14,187$65
Initial hospital care with moderate level of medical decision making at least 75 minutes79$14,093$178
Hospital discharge day management, more than 30 minutes88$9,049$99
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes75$7,668$35
Initial hospital observation care per day, typically 70 minutes45$7,616$166
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes17$2,093$123
Hospital discharge day management, 30 minutes or less23$1,542$67
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes15$1,359$91
Hospital observation care on day of discharge19$1,291$65

2021: 8 services

Original Medicare services billed in 2021
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes119$22,688$97
Initial hospital care with moderate level of medical decision making at least 75 minutes75$13,884$185
Hospital discharge day management, more than 30 minutes116$11,985$100
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes84$10,469$66
Initial hospital observation care per day, typically 70 minutes27$4,353$161
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes34$3,152$35
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes14$1,291$92
Hospital observation care on day of discharge14$884$63

2020: 8 services

Original Medicare services billed in 2020
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes138$31,196$99
Hospital discharge day management, more than 30 minutes117$12,579$103
Initial hospital care with moderate level of medical decision making at least 75 minutes61$11,749$189
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes63$7,079$69
Initial hospital observation care per day, typically 70 minutes33$6,017$182
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes18$1,575$37
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes15$1,418$95
Hospital observation care on day of discharge12$864$72

2019: 2 services

Original Medicare services billed in 2019
Initial hospital care with moderate level of medical decision making at least 75 minutes25$4,713$181
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes16$1,968$123

2018: 9 services

Original Medicare services billed in 2018
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes149$19,997$91
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes151$16,146$64
Hospital discharge day management, more than 30 minutes156$15,116$95
Initial hospital care with moderate level of medical decision making at least 75 minutes83$14,480$170
Initial hospital observation care per day, typically 70 minutes36$5,701$158
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes33$3,856$117
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes74$3,357$35
Initial hospital observation care per day, typically 50 minutes16$1,812$113
Hospital observation care on day of discharge15$991$66

2017: 9 services

Original Medicare services billed in 2017
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes149$18,663$89
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes190$18,622$62
Hospital discharge day management, more than 30 minutes152$14,564$94
Initial hospital care with moderate level of medical decision making at least 75 minutes72$12,447$171
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes30$3,481$116
Initial hospital observation care per day, typically 50 minutes29$3,448$119
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes79$3,276$34
Initial hospital observation care per day, typically 70 minutes18$2,785$155
Hospital observation care on day of discharge33$2,134$65

2016: 9 services

Original Medicare services billed in 2016
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes166$23,065$88
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes127$13,087$60
Hospital discharge day management, more than 30 minutes138$13,040$91
Initial hospital care with moderate level of medical decision making at least 75 minutes67$11,649$171
Initial hospital observation care per day, typically 50 minutes28$3,258$116
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes61$2,423$32
Hospital observation care on day of discharge28$1,773$63
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes15$1,641$109
Follow-up observation care per day, typically 35 minutes13$1,359$85

2015: 4 services

Original Medicare services billed in 2015
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes32$4,365$89
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes24$2,754$63
Hospital discharge day management, more than 30 minutes25$2,355$94
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes16$841$34

Medicaid work

$1,434 in 2018

Medicaid paid $1,434 for 62 billed services this clinician did in 2018, up to 13 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2018
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES43$1,090
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES19$344
Medicaid work by year
201862213$1,434

Professional record

NPI
1508127960
Licence
CA 13432, CA 20A13432California C13432: Cancelled
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Hospitalist (208M00000X); Internal medicine (207R00000X)
Mailing address
325 Distel Cir, Los Altos, CA, 94022
NPI first listed
2012-06-01
NPI last updated
2020-04-14
NPI record certified
2020-04-14

This is when the NPI record was last certified, not a medical board exam.