Doctor profile · Federal record

Dr. Gen Shinozaki, MD

Psychiatry Physician (CMS: Psychiatry) · Psychosomatic Medicine Physician · Psychiatry Physician · Stanford, CA

  • NPI 1255474979
  • Accepts Medicare
  • MIPS 75.5 / 100 · 2023
  • 24 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Additional location
200 Hawkins Dr
Iowa City, IA 522421009
(319) 384-4932

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
April 30, 2024
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State licenses (2)
California #C171643 · Iowa #MD-41376

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255474979. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
98
Distinct HCPCS
1
Medicare allowed
$5,428
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 98 47 $55

In context: peer comparison

Among 11 peers in this city , average services per provider: 90. This provider delivers 1.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$12
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Sumitomo Pharma Co., Ltd. 1 $11.90

By nature of payment

Travel and Lodging
$12

Frequently asked questions

Auto-generated from federal data
What is Dr. Gen Shinozaki's medical specialty?
Dr. Gen Shinozaki practices Psychiatry Physician in Stanford, CA.
Where does Dr. Gen Shinozaki practice?
Dr. Gen Shinozaki practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Gen Shinozaki's NPI?
Dr. Gen Shinozaki's National Provider Identifier (NPI) is 1255474979, issued by NPPES.
Does Dr. Gen Shinozaki accept Medicare assignment?
Yes. Dr. Gen Shinozaki accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gen Shinozaki commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.