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Gen MD Shinozaki, MD

Psychiatry · Stanford

NPI 1255474979

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
4
1 carrier
Office
1
Since medical school
24 years
Graduated 2002

Offices

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

Looking this up.

Plans that list them

4 plans · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Shinozaki’s office at (650) 723-4000 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
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

California Medical Board record

Licence C171643 · Current

Licensed to practise in California · since 2021 · expires 2027-02-28 · Yamanashi Medical College.

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

School, training and certification

What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.

Specialty certification

  • American Board of Psychiatry and Neurology - Psychiatry
  • American Board of Psychiatry and Neurology - Psychosomatic Medicine

Original Medicare doctor bills

$9,353

Medicare paid this office $9,353 for 45 people.

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

Largest Original Medicare bills
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes40$5,018$44

Who their Medicare patients are

45 Original Medicare patients in 2024. Average age 61 · Under 65 47% · Women 73% · Also on Medicaid 56% · Health risk score 1.40. Above the middle of the specialty; the typical psychiatry clinician is at 1.35.

Conditions among them: Depression 64% · High blood pressure 60% · Diabetes 42% · Dementia 29% · Coronary heart disease 24%.

The office billed $35,411, Medicare allowed $11,833 and paid $9,353; for 157 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
202445157611.40$35,411$9,353
202353121622.04$24,375$6,151
20223562682.08$19,640$3,922
202117116591.56$23,652$4,528
202067560561.70$120,720$23,081
2019118370592.54$107,475$20,820
201854296521.57$80,581$15,975
201773390541.94$101,482$20,304
201678361622.03$96,102$19,540
201598419602.09$102,215$21,125
2014149716612.21$175,542$38,028
20132131621.66$8,413$1,755

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: 1 service

Original Medicare services billed in 2023
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes47$4,325$44

2022: 1 service

Original Medicare services billed in 2022
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes18$558$31

2021: 1 service

Original Medicare services billed in 2021
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes16$2,210$29

2020: 3 services

Original Medicare services billed in 2020
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes51$10,297$30
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes48$10,051$55
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes11$878$80

2019: 4 services

Original Medicare services billed in 2019
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes55$9,938$56
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes52$4,713$80
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes33$2,594$30
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes25$2,083$77

2018: 2 services

Original Medicare services billed in 2018
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes50$12,545$55
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes16$1,272$30

2017: 3 services

Original Medicare services billed in 2017
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes54$14,546$54
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes37$2,391$30
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes23$1,809$72

2016: 3 services

Original Medicare services billed in 2016
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes69$15,102$53
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes37$3,508$75
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes15$854$29

2015: 4 services

Original Medicare services billed in 2015
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes73$13,887$54
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes36$2,940$29
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes34$2,915$68
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes11$834$76

2014: 5 services

Original Medicare services billed in 2014
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes107$29,203$54
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes41$3,086$29
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes24$2,252$78
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes14$1,434$102
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes17$1,279$75

2013: 1 service

Original Medicare services billed in 2013
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes14$1,144$52

Medicaid work

$51,894 in 2020

Medicaid paid $51,894 for 747 billed services this clinician did in 2020, up to 26 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 2020
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES343$29,456
SBSQ HOSPITAL IP/OBS CARE SF/LOW MDM 25 MINUTES391$20,704
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter13$1,735
Medicaid work by year
2020747326$51,894
2019297317$10,047
2018291127$8,612
See the largest Medicaid services in earlier years

2019

Largest Medicaid services in 2019
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES210$6,846
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES58$2,560
SBSQ HOSPITAL IP/OBS CARE SF/LOW MDM 25 MINUTES29$641

2018

Largest Medicaid services in 2018
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES291$8,612

Money from drug and device companies

$12 in 2024

Industry payments by year
202411None$12
202212None$101
201917$810$1,428

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
Sumitomo Pharma Co.None$12
1 payment
  • Travel · 2024-06-25 · $12
See the published payment
Every published payment
Sumitomo Pharma Co.Travel · 2024-06-25None$12
See earlier years (2022, 2019)

2022: $101

Payments by company in 2022
Sumitomo Pharma Co.None$101
2 payments
  • Meals · 2022-07-06 · $19
  • Travel · 2022-07-06 · $81

2019: $1,428

Payments by company in 2019
Sumitomo Dainippon Pharma Co.None$1,428
7 payments
  • Paid to speak or teach · 2019-07-31 · $810
  • Travel · 2019-07-03 · $165
  • Travel · 2019-07-03 · $85
  • Meals · 2019-07-03 · $3
  • Meals · 2019-07-03 · $15
  • Travel · 2019-07-02 · $164
  • Travel · 2019-07-02 · $186

Research money

Money a company paid to run a study. Where it went to their institution, the clinician is named as an investigator and did not receive it; the amount covers the whole study, often across many sites.

Research payments by company and study
Sumitomo Pharma Co., Ltd. · Molecular and Cellular Profiling of the Glial Cells in Delirium and Related Neurological Conditions · 2023Their institution$648,544

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
1255474979
Licence
CA C171643, IA MD-41376California C171643: Current · expires 2027-02-28
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Psychiatry (2084P0800X); Federal specialty code 2084P0015X (2084P0015X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2007-02-14
NPI last updated
2026-07-17
NPI record certified
2026-07-17

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

Extra NPI addresses: 200 Hawkins Dr, Iowa City, IA, 52242