Doctor profile · Federal record

Dr. Michael Gynn, MD

Surgery Physician · Pleasanton, CA

  • NPI 1366462491
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
5555 W Las Positas Blvd
Pleasanton, CA 945884000
(925) 416-3440
Additional location
500 W. Hospital RD.
French Camp, CA 95231
(209) 468-6937
fax (209) 468-7042

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
March 12, 2025
Specialty taxonomy
208600000X — NUCC code
State license (1)
California #A79766

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366462491. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$705
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Stryker Corporation 1 $624.72
INTUITIVE SURGICAL, INC. 1 $79.93

By nature of payment

Travel and Lodging
$625
Food and Beverage
$80

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
36
Patients
24
Total drug cost
$236
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 13 12 $61
Ibuprofen Generic 12 12 $107
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 11 0 $67

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Gynn's medical specialty?
Dr. Michael Gynn practices Surgery Physician in Pleasanton, CA.
Where does Dr. Michael Gynn practice?
Dr. Michael Gynn practices at 5555 W Las Positas Blvd, Pleasanton, CA 945884000. Office phone: 9254163440.
What is Dr. Michael Gynn's NPI?
Dr. Michael Gynn's National Provider Identifier (NPI) is 1366462491, issued by NPPES.