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Tyler P Johnson, MD

Hematology/Oncology · Stanford

NPI 1689945362

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
17
3 carriers
Office
1

Offices

1 location · Stanford Health Care · 3,152 clinicians in this group

Looking this up.

Hospitals listed: Stanford Health Care. That is not proof they admit you there this week.

Plans that list them

17 plans · 3 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Johnson’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

17 of 17 plans

Plans whose provider directory lists this clinician
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Silicon (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health smartHMO (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health the ONE (HMO)Alignment Health PlanListedOct 3, 2026
SCAN Balance (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
SCAN Classic (HMO)SCAN Health PlanListedOct 3, 2026
SCAN MyChoice (HMO)SCAN Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A114397 · Current

Licensed to practise in California · since 2010 · expires 2028-10-31 · University of Pennsylvania School 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.

  • Stanford Health CareStanford, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Stanford Health Care, which runs 3 hospitalsHome of Stanford Cancer Institute, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 83% would definitely recommend it
    Overall rating: 5 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 5.31 (4.24 to 6.37) · 8,661 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 14.1 (12.7 to 15.7) · 2,191 cases, Jan 2024 – Dec 2024Better than the national rate — Postoperative respiratory failure rate: 4.08 (1.95 to 6.21) · 5,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.317, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.446, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.241, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 3,348 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Stanford Health Care

Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 2 better, 5 the same, 4 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 Stanford Health Care
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths5.31 (4.24 to 6.37) · 8,661 casesWorseJul 2022 – Jun 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits14.1 (12.7 to 15.7) · 2,191 casesWorseJan 2024 – Dec 2024
Postoperative respiratory failure rateComplications and deaths4.08 (1.95 to 6.21) · 5,296 casesBetterJul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.317BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.446BetterOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.241BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.7 (0.6 to 0.9) · 3,348 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.06 (0.45 to 1.67) · 5,374 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.86 (0.72 to 1)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths166.09 (137.88 to 194.3) · 470 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.1 · 192 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6.4 · 146 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths9.7 · 253 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.3 · 880 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.3 · 935 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths8.7 · 501 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.1 · 7,730 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.13 (0 to 0.27) · 20,799 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.28 (0.14 to 0.43) · 23,182 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths0.94 (0.2 to 1.68) · 5,694 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.36 (1.54 to 3.19) · 7,846 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.2 (3.76 to 6.64) · 5,603 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.38 (0.23 to 2.53) · 2,211 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.52 (0.21 to 0.83) · 19,915 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.6 · 416 casesNoneApr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.869No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.857No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.368No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits16.2 · 247 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20.5 · 1,021 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits47.8 · 258 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-1.6 · 990 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits20.8 · 976 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.5 · 959 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.2 (4.4 to 6.2) · 2,191 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.1 · 425 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits9.6 · 158 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.6 · 183 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.7 (10.4 to 15.4) · 4,578 casesNo differentJan 2022 – Dec 2024

What patients said (6,810 patients answered, 25% of those asked)

Patient survey stars by topic at Stanford Health Care
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at Stanford Health Care
Room was "always" clean75%
Nurses "always" communicated well82%
Doctors "always" communicated well81%
Staff "always" explained63%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge89%
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)79%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully79%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night53%
"YES", patients would definitely recommend the hospital83%
Staff "always" explained possible side effects50%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$71,662

Medicare paid this office $71,662 for 166 people. Most of that is long return visits and Botox.

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

Largest Original Medicare bills
Long return visit (40+ min)83$37,253$169
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes35$14,488$106
Long return visit (40+ min)30$5,294$126
Return visit (30+ min)34$4,363$121
New patient visit (60+ min)12$2,495$208
See all 7 services
Every Original Medicare service billed
Long return visit (40+ min)83$37,253$169
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes35$14,488$106
Long return visit (40+ min)30$5,294$126
Return visit (30+ min)34$4,363$121
New patient visit (60+ min)12$2,495$208
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes11$2,124$71
Initial hospital care with moderate level of medical decision making at least 75 minutes12$2,022$156

Who their Medicare patients are

166 Original Medicare patients in 2024. Average age 74 · Under 65 8% · 85 and older 11% · Women 49% · Also on Medicaid 30% · Health risk score 2.78. Sicker patients than 9 in 10 peers; the typical hematology-oncology clinician is at 2.04.

Conditions among them: High blood pressure 74% · Cancer 58% · Diabetes 33% · Coronary heart disease 30% · Chronic kidney disease 26% · Heart failure 22% · Atrial fibrillation 20% · COPD 19% · Depression 19% · Stroke 13% · Dementia 11%.

The office billed $344,435, Medicare allowed $91,440 and paid $71,662; for 524 services of 12 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
2024166524742.78$344,435$71,662
2023176602742.53$352,171$67,986
2022203628732.66$368,342$67,796
2021216716722.32$466,578$86,442
2020197677712.40$301,209$66,548
2019178586722.76$116,578$53,473
2018179562712.17$122,423$53,488
2017109384722.38$107,215$36,936
201658147721.92$52,527$16,065
201334116742.93$31,000$8,695

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
Long return visit (40+ min)108$33,537$132
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes28$10,531$110
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes31$8,026$73
Return visit (30+ min)54$5,781$89
New patient visit (60+ min)20$3,340$167
Hospital discharge day management, more than 30 minutes22$2,356$107
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes11$1,315$120

2022: 8 services

Original Medicare services billed in 2022
Long return visit (40+ min)100$23,948$132
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes51$14,869$94
Return visit (30+ min)93$14,470$90
Initial hospital care with moderate level of medical decision making at least 75 minutes26$4,698$181
New patient visit (60+ min)21$3,143$150
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes14$2,198$65
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes15$1,837$122
Hospital discharge day management, more than 30 minutes14$1,371$98

2021: 7 services

Original Medicare services billed in 2021
Long return visit (40+ min)129$46,148$133
Return visit (30+ min)89$12,107$90
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes29$10,920$95
New patient visit (60+ min)59$10,150$172
Initial hospital care with moderate level of medical decision making at least 75 minutes17$3,377$188
Hospital discharge day management, more than 30 minutes15$1,526$102
Short return visit (20+ min)15$990$62

2020: 7 services

Original Medicare services billed in 2020
Return visit (30+ min)84$16,458$74
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes37$14,340$98
Long return visit (40+ min)70$14,008$105
New patient visit (60+ min)61$9,560$157
Initial hospital care with moderate level of medical decision making at least 75 minutes25$5,502$190
Hospital discharge day management, more than 30 minutes28$3,050$102
Short return visit (20+ min)22$1,097$46

2019: 6 services

Original Medicare services billed in 2019
Return visit (30+ min)103$19,154$71
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes25$11,414$94
Long return visit (40+ min)50$7,572$101
New patient visit (60+ min)51$7,552$148
Initial hospital care with moderate level of medical decision making at least 75 minutes19$3,487$184
Hospital discharge day management, more than 30 minutes20$1,983$99

2018: 6 services

Original Medicare services billed in 2018
Return visit (30+ min)86$16,336$70
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes35$12,908$94
New patient visit (60+ min)71$10,604$149
Long return visit (40+ min)44$5,886$100
Initial hospital care with moderate level of medical decision making at least 75 minutes24$4,703$181
Hospital discharge day management, more than 30 minutes17$1,675$99

2017: 5 services

Original Medicare services billed in 2017
Long return visit (40+ min)53$10,897$98
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes20$7,946$93
Return visit (30+ min)38$7,497$70
New patient visit (60+ min)36$5,166$143
Initial hospital care with moderate level of medical decision making at least 75 minutes16$2,901$181

2016: 3 services

Original Medicare services billed in 2016
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes15$5,833$93
New patient visit (60+ min)26$3,893$150
Long return visit (40+ min)16$3,865$99

2013: 3 services

Original Medicare services billed in 2013
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes27$4,814$63
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes20$2,414$121
Hospital discharge day management, 30 minutes or less18$1,171$65

Medicaid work

$7,713 in 2024

Medicaid paid $7,713 for 133 billed services this clinician did in 2024, up to 17 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 2024
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES93$4,541
Long return visit (40+ min)40$3,172
Medicaid work by year
2024133217$7,713
2023192224$10,992
202230214$1,282
2021141117$9,024
202045114$1,460
2019140117$5,539
201898116$3,954
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Long return visit (40+ min)163$9,923
Return visit (30+ min)29$1,069

2022

Largest Medicaid services in 2022
Long return visit (40+ min)16$956
Return visit (30+ min)14$326

2021

Largest Medicaid services in 2021
Long return visit (40+ min)141$9,024

2020

Largest Medicaid services in 2020
Return visit (30+ min)45$1,460

2019

Largest Medicaid services in 2019
Return visit (30+ min)140$5,539

2018

Largest Medicaid services in 2018
Return visit (30+ min)98$3,954

Drugs they prescribed that Part D paid

$9,960

Pharmacies billed $9,960 in 2024.

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

Opioids were 0% of their Part D prescriptions (0 of 108) in 2024. At or below the middle of the specialty; the typical hematology-oncology clinician is at 5%.

97 generic and 11 brand-name prescriptions · $9,960 in drug cost.

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
Loperamide16$207$13
Potassium Chloride15$144$10
Prochlorperazine Maleate11$122$11
Ondansetron13$82$6

Year by year

Part D prescribing by year
2024108370% (0)10%$9,960
202311842NoneNone$17,997
2022122330% (0)None$36,057
202174320% (0)23%$5,586
2020133320% (0)32%$17,146
201920046None16%$81,576
201815750None12%$51,133
201712227None20%$213,630
201642140% (0)None$23,959
20135416NoneNone$6,261

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

See the drugs prescribed each year

2023: 2 drugs

Part D drugs prescribed in 2023
Prochlorperazine Maleate24$335$14
Ondansetron16$243$15

2022: 3 drugs

Part D drugs prescribed in 2022
Eliquis15$8,871$591
Ondansetron11$375$34
Prochlorperazine Maleate11$147$13

2020: 4 drugs

Part D drugs prescribed in 2020
Eliquis11$7,442$677
Sodium Chloride17$414$24
Ondansetron13$318$24
Prochlorperazine Maleate18$210$12

2019: 2 drugs

Part D drugs prescribed in 2019
Prochlorperazine Maleate47$486$10
Ondansetron36$412$11

2018: 3 drugs

Part D drugs prescribed in 2018
Imatinib Mesylate12$10,990$916
Ondansetron44$859$20
Prochlorperazine Maleate31$195$6

2017: 4 drugs

Part D drugs prescribed in 2017
Nexavar14$120,254$8,590
Imatinib Mesylate12$54,849$4,571
Ondansetron23$292$13
Prochlorperazine Maleate20$130$7

Money from drug and device companies

$64 in 2025

Industry payments by year
202522None$64
202311None$134
202111$2,380$2,380
201913None$221

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
Astellas Pharma USVeozah$34
1 payment
  • Meals for Veozah · 2025-02-25 · $34
United TherapeuticsTyvaso$30
1 payment
  • Meals for Tyvaso · 2025-04-08 · $30
See all 2 published payments
Every published payment
United TherapeuticsMeals · 2025-04-08Tyvaso$30
Astellas Pharma USMeals · 2025-02-25Veozah$34
See earlier years (2023, 2021, 2019)

2023: $134

Payments by company in 2023
Jazz PharmaceuticalsXywav$134
1 payment
  • Meals for Xywav · 2023-05-12 · $134

2021: $2,380

Payments by company in 2021
Servier PharmaceuticalsTibsovo$2,380
1 payment
  • Consulting for Tibsovo · 2021-10-27 · $2,380

2019: $221

Payments by company in 2019
Wright Medical TechnologyBlueprint Psi System$221
3 payments
  • Meals for Blueprint Psi System · 2019-03-21 · $56
  • Meals for Aequalis · 2019-03-21 · $28
  • Meals for Blueprint Psi System · 2019-03-21 · $137

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
76.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1689945362
Licence
CA A114397California A114397: Current · expires 2028-10-31
Trained
Perelman School of Med at the University of Pennsylvania, 2009
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
Yes
Taxonomy
Medical oncology (207RX0202X); Internal medicine (207R00000X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2012-01-26
NPI last updated
2024-04-25
NPI record certified
2024-04-25

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

Extra NPI addresses: 875 Blake Wilbur Dr, Palo Alto, CA, 94304