Doctor profile · Federal record

Dr. Rena Mei, MD

Gastroenterology Physician (CMS: Internal Medicine) · San Francisco, CA

  • NPI 1023571908
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1001 Potrero Avenue, Building 5, 3Rd Floor, Suite 3D
San Francisco, CA 94110
(628) 206-8823
Additional location
622 W 168Th St
New York, NY 100323720
(212) 305-6262
Mailing address
1001 Potrero Ave, Nh 3D, Inter-Campus Box #0862
San Francisco, CA 941103518

Credentials & registration

NPPES · NUCC
NPI registered
April 2019 — 7 yrs on file
Profile last updated
June 12, 2025
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
California #A178993

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023571908. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$119
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Regeneron Healthcare Solutions, INC. 1 $118.80

By nature of payment

Food and Beverage
$119

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
18
Patients
11
Total drug cost
$324
Drug Type Claims Patients Total cost
Omeprazole Generic 18 11 $324

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Rena Mei's medical specialty?
Dr. Rena Mei practices Gastroenterology Physician in San Francisco, CA.
Where does Dr. Rena Mei practice?
Dr. Rena Mei practices at 1001 Potrero Avenue, San Francisco, CA 94110. Office phone: 6282068823.
What is Dr. Rena Mei's NPI?
Dr. Rena Mei's National Provider Identifier (NPI) is 1023571908, issued by NPPES.
Does Dr. Rena Mei accept Medicare assignment?
Yes. Dr. Rena Mei accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.