Doctor profile · Federal record

Dr. John Tatman, MD

Gynecologic Oncology Physician · Santa Clara, CA

  • NPI 1184701021
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
710 Lawrence Expy
Santa Clara, CA 950515173
(408) 851-1000
Mailing address
1800 Harrison St Fl 7
Oakland, CA 946123429

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
207VX0201X — NUCC code
State license (1)
California #G63598
Medicaid
CA #00G635980

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184701021. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$83
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 1 $42.58
GlaxoSmithKline, LLC. 1 $39.99

By nature of payment

Food and Beverage
$83

Frequently asked questions

Auto-generated from federal data
What is Dr. John Tatman's medical specialty?
Dr. John Tatman practices Gynecologic Oncology Physician in Santa Clara, CA.
Where does Dr. John Tatman practice?
Dr. John Tatman practices at 710 Lawrence Expy, Santa Clara, CA 950515173. Office phone: 4088511000.
What is Dr. John Tatman's NPI?
Dr. John Tatman's National Provider Identifier (NPI) is 1184701021, issued by NPPES.