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Alina Grace Tan, MD

Hospitalist · Mountain View

NPI 1952627267

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
1
1 carrier
Offices
3

Offices

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

Looking this up.

Hospitals listed: El Camino Health. 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. Tan’s office 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 A129303 · Current

Licensed to practise in California · since 2014 · expires 2027-08-31 · Drexel University College of Medicine.

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

Hospitals they work in

1 hospital

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
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%

Original Medicare doctor bills

$69,278

Medicare paid this office $69,278 for 241 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 minutes136$33,555$106
Hospital discharge day management, more than 30 minutes128$13,904$102
Initial hospital care with moderate level of medical decision making at least 75 minutes67$10,198$152
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes87$9,631$69
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes19$1,236$44

Who their Medicare patients are

241 Original Medicare patients in 2024. Average age 80 · 85 and older 36% · Women 56% · Also on Medicaid 24% · Health risk score 2.02. 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 51% · Coronary heart disease 43% · Heart failure 43% · Atrial fibrillation 39% · Diabetes 36% · Depression 31% · Cancer 28% · Dementia 27% · Stroke 24% · COPD 21%.

The office billed $256,208, Medicare allowed $88,046 and paid $69,278; for 693 services of 9 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
2024241693802.02$256,208$69,278
2023290820822.02$293,202$82,501
2022275688812.07$240,378$63,460
2021256644791.96$220,146$60,383
2020275627802.27$222,197$68,914
2019391965812.22$329,644$99,232
2018250598801.99$189,882$57,663
20173661,004792.50$315,782$91,552
20163841,046752.92$312,285$79,623
2015323721752.97$232,117$59,494
2014202389752.54$136,524$35,521

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: 5 services

Original Medicare services billed in 2023
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes145$34,560$109
Hospital discharge day management, more than 30 minutes151$17,144$107
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes108$15,767$73
Initial hospital care with moderate level of medical decision making at least 75 minutes73$11,844$160
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes28$1,739$46

2022: 6 services

Original Medicare services billed in 2022
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes123$22,102$95
Hospital discharge day management, more than 30 minutes131$13,346$96
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes99$11,390$66
Initial hospital care with moderate level of medical decision making at least 75 minutes56$10,560$182
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes21$1,169$35
Hospital observation care on day of discharge16$1,005$63

2021: 6 services

Original Medicare services billed in 2021
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes94$18,066$97
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes102$13,319$68
Initial hospital care with moderate level of medical decision making at least 75 minutes73$12,950$173
Hospital discharge day management, more than 30 minutes105$11,190$101
Hospital observation care on day of discharge17$1,173$69
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes18$965$36

2020: 5 services

Original Medicare services billed in 2020
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes133$29,169$96
Initial hospital care with moderate level of medical decision making at least 75 minutes102$19,081$187
Hospital discharge day management, more than 30 minutes107$11,440$102
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes49$4,551$68
Initial hospital observation care per day, typically 70 minutes11$1,808$164

2019: 6 services

Original Medicare services billed in 2019
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes204$44,278$94
Initial hospital care with moderate level of medical decision making at least 75 minutes128$23,112$179
Hospital discharge day management, more than 30 minutes163$16,712$99
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes69$7,752$66
Initial hospital observation care per day, typically 70 minutes17$2,727$160
Hospital observation care on day of discharge21$1,288$61

2018: 5 services

Original Medicare services billed in 2018
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes133$29,038$93
Hospital discharge day management, more than 30 minutes96$9,875$99
Initial hospital care with moderate level of medical decision making at least 75 minutes54$9,292$172
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes55$5,572$63
Hospital observation care on day of discharge16$1,070$67

2017: 5 services

Original Medicare services billed in 2017
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes194$38,737$91
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes134$16,806$63
Hospital discharge day management, more than 30 minutes168$16,515$95
Initial hospital care with moderate level of medical decision making at least 75 minutes77$13,917$176
Hospital observation care on day of discharge18$1,189$66

2016: 4 services

Original Medicare services billed in 2016
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes234$30,328$60
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes155$21,894$88
Hospital discharge day management, more than 30 minutes208$19,468$91
Initial hospital care with moderate level of medical decision making at least 75 minutes28$4,862$174

2015: 4 services

Original Medicare services billed in 2015
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes189$24,260$61
Initial hospital care with moderate level of medical decision making at least 75 minutes81$13,997$171
Hospital discharge day management, more than 30 minutes145$13,551$92
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes51$5,480$86

2014: 4 services

Original Medicare services billed in 2014
Initial hospital care with moderate level of medical decision making at least 75 minutes78$13,731$174
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes110$12,634$62
Hospital discharge day management, more than 30 minutes61$5,767$93
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes15$2,322$89

Drugs they prescribed that Part D paid

$13,036

Pharmacies billed $13,036 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 6% of their Part D prescriptions (11 of 183) in 2024. Above the middle of the specialty; the typical hospitalist clinician is at 4%.

165 generic and 18 brand-name prescriptions · $13,036 in drug cost · 22 antibiotic prescriptions to 18 people.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Largest Part D drug costs
Pantoprazole18$156$8
Atorvastatin11$82$7

Year by year

Part D prescribing by year
2024183956% (11)10%$13,036
202317190NoneNone$11,593
2022180999% (16)12%$6,385
2021182919% (17)None$9,691
2020150818% (12)11%$8,118
20192151028% (17)None$10,192
201813667None17%$10,601
20172561158% (21)None$19,102
20163951446% (22)23%$21,856
201526097None20%$14,073
201411148NoneNone$6,524
201310712None16%$4,734

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2022: 1 drug

Part D drugs prescribed in 2022
Pantoprazole12$111$9

2021: 2 drugs

Part D drugs prescribed in 2021
Pantoprazole12$114$10
Atorvastatin13$83$6

2019: 2 drugs

Part D drugs prescribed in 2019
Pantoprazole13$85$7
Furosemide11$42$4

2017: 2 drugs

Part D drugs prescribed in 2017
Pantoprazole14$117$8
Carvedilol11$51$5

2016: 9 drugs

Part D drugs prescribed in 2016
Atorvastatin23$245$11
Hydralazine11$164$15
Levofloxacin13$152$12
Carvedilol25$141$6
Furosemide26$100$4
Metoprolol18$89$5
Hydrocodone-Acetaminophen11$87$8
Clopidogrel11$84$8
Lisinopril17$57$3

2015: 8 drugs

Part D drugs prescribed in 2015
Atorvastatin12$141$12
Levofloxacin13$78$6
Metoprolol15$58$4
Lisinopril14$56$4
Carvedilol15$53$4
Prednisone11$51$5
Amlodipine Besylate13$49$4
Furosemide11$33$3

2013: 3 drugs

Part D drugs prescribed in 2013
Nifedical Xl19$482$25
Atorvastatin11$263$24
Lisinopril12$82$7

Professional record

NPI
1952627267
Licence
CA A129303California A129303: Current · expires 2027-08-31
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
2010-04-12
NPI last updated
2021-02-25
NPI record certified
2021-02-25

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