Doctor profile · Federal record

Dr. Marvin Mah, O.D.

Optometrist · Fremont, CA

  • NPI 1245228402
  • 21 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1556 Washington Blvd
Fremont, CA 945395100
(510) 438-0508
fax (513) 661-2362

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
August 10, 2010
Specialty taxonomy
152W00000X — NUCC code
State license (1)
California #006996T
Medicaid
CA #SD0069960T

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245228402. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$26
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Alcon Vision LLC 1 $25.97

By nature of payment

Food and Beverage
$26

Frequently asked questions

Auto-generated from federal data
What is Dr. Marvin Mah's medical specialty?
Dr. Marvin Mah practices Optometrist in Fremont, CA.
Where does Dr. Marvin Mah practice?
Dr. Marvin Mah practices at 1556 Washington Blvd, Fremont, CA 945395100. Office phone: 5104380508.
What is Dr. Marvin Mah's NPI?
Dr. Marvin Mah's National Provider Identifier (NPI) is 1245228402, issued by NPPES.

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated Jul 14, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›