Doctor profile · Federal record

Dr. Marc Harwitt, M.D.

Gastroenterology Physician · Santa Monica, CA

  • NPI 1285613943
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1301 20Th St Ste 280
Santa Monica, CA 904042053
(310) 829-6789
fax (310) 935-3163
Mailing address
1301 20Th St 376
Santa Monica, CA 904042087

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
August 28, 2020
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
California #G23138
Medicaid
CA #00G231380

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285613943. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$24
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 1 $23.96

By nature of payment

Food and Beverage
$24

Frequently asked questions

Auto-generated from federal data
What is Dr. Marc Harwitt's medical specialty?
Dr. Marc Harwitt practices Gastroenterology Physician in Santa Monica, CA.
Where does Dr. Marc Harwitt practice?
Dr. Marc Harwitt practices at 1301 20Th St Ste 280, Santa Monica, CA 904042053. Office phone: 3108296789.
What is Dr. Marc Harwitt's NPI?
Dr. Marc Harwitt's National Provider Identifier (NPI) is 1285613943, issued by NPPES.