Doctor profile · Federal record

Dr. Brock Macdonald, M.D.

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

  • NPI 1689901506
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
350 Parnassus Ave, S-357
San Francisco, CA 941173608
(415) 476-2777

Credentials & registration

NPPES · NUCC
NPI registered
November 2009 — 17 yrs on file
Profile last updated
December 15, 2021
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
California #A102304

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689901506. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$30
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
CapsoVision, INC. 1 $29.75

By nature of payment

Food and Beverage
$30

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
910
Patients
516
Total drug cost
$182,033
Drug Type Claims Patients Total cost
Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 368 359 $7,785
Omeprazole Generic 162 65 $1,387
Pantoprazole Sodium Generic 80 32 $1,022
Famotidine Generic 54 22 $777
Budesonide Dr (Budesonide) Brand 44 21 $3,257
Lialda (Mesalamine) Brand 44 17 $20,314
Xifaxan (Rifaximin) Brand 31 0 $85,827
Carvedilol Generic 21 0 $171
Creon (Lipase/Protease/Amylase) Brand 21 0 $46,766
Imipramine Hcl Generic 18 0 $250

Frequently asked questions

Auto-generated from federal data
What is Dr. Brock Macdonald's medical specialty?
Dr. Brock Macdonald practices Gastroenterology Physician in San Francisco, CA.
Where does Dr. Brock Macdonald practice?
Dr. Brock Macdonald practices at 350 Parnassus Ave, San Francisco, CA 941173608. Office phone: 4154762777.
What is Dr. Brock Macdonald's NPI?
Dr. Brock Macdonald's National Provider Identifier (NPI) is 1689901506, issued by NPPES.
Does Dr. Brock Macdonald accept Medicare assignment?
Yes. Dr. Brock Macdonald accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.