Doctor profile · Federal record

Dr. Kazunari Sasaki, M.D.

Surgery Physician (CMS: General Surgery) · Surgery Physician · Stanford, CA

  • NPI 1235591595
  • Accepts Medicare
  • MIPS 75.5 / 100 · 2023
  • 22 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
January 14, 2025
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
208600000X — NUCC code
State licenses (2)
California #A198983 · Ohio #35.134539

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235591595. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
212
Distinct HCPCS
4
Medicare allowed
$117,252
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 94 20 $89
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 82 13 $55
47135 Transplantation of donor liver 25 25 $4,097
47143 Preparation of donor liver for transplantation 11 11 $170

In context: peer comparison

Among 5 peers in Stanford Surgery Physician, average services per provider: 41. This provider delivers 5.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,644
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
TransMedics, INC. 1 $2,411.68
AstraZeneca Pharmaceuticals Lp 2 $2,156.78
Ethicon US, LLC 1 $75.81

By nature of payment

Travel and Lodging
$2,412
Consulting Fee
$2,148
Food and Beverage
$85

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
47
Patients
0
Total drug cost
$10,884
Drug Type Claims Patients Total cost
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 14 0 $72
Atovaquone Generic 11 0 $10,614
Fludrocortisone Acetate Generic 11 0 $108
Pantoprazole Sodium Generic 11 0 $89

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Kazunari Sasaki's medical specialty?
Dr. Kazunari Sasaki practices Surgery Physician in Stanford, CA.
Where does Dr. Kazunari Sasaki practice?
Dr. Kazunari Sasaki practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Kazunari Sasaki's NPI?
Dr. Kazunari Sasaki's National Provider Identifier (NPI) is 1235591595, issued by NPPES.
Does Dr. Kazunari Sasaki accept Medicare assignment?
Yes. Dr. Kazunari Sasaki accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kazunari Sasaki commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Transplantation of donor liver (HCPCS 47135). Source: CMS Medicare Physician & Other Practitioners file.