DR. BROCK ALAN WEBSTER MACDONALD M.D.
NPI 1689901506
Internal Medicine - Gastroenterology in San Francisco, CA

Active since November 13, 2009PECOS EnrolledAccepts Medicare Assignment
350 PARNASSUS AVE, S-357, SAN FRANCISCO, CA 94117(415) 476-2777 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Brock Alan Webster Macdonald M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BROCK ALAN WEBSTER MACDONALD M.D. (NPI 1689901506) is an individual gastroenterology provider in San Francisco, California, licensed in California (A102304) and active in the NPI registry since November 2009. He is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (2004).

NPPES Registry Identity

NPI1689901506
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. BROCK ALAN WEBSTER MACDONALDCredential: M.D.
Location Address350 PARNASSUS AVE, S-357San Francisco, CA 94117-3608
Mailing Address350 Parnassus Ave, S-357San Francisco, CA 94117-3608 · (415) 476-2777
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2004
Enumeration DateNovember 13, 2009
Last NPPES UpdateDecember 15, 2021
NPI 1689901506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in CA · A102304
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
350 PARNASSUS AVE, San Francisco, CA 94117

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Brock Alan Webster Macdonald M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123292851
PECOS Enrollment IDI20111115000602
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94117 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychologist (Clinical)
350 PARNASSUS AVE, SUITE 601
SAN FRANCISCO, CA 94117
Dentist (General Practice)
350 PARNASSUS AVE, SUITE 403
SAN FRANCISCO, CA 94117
Dentist (General Practice)
350 PARNASSUS AVE, SUITE #403
SAN FRANCISCO, CA 94117
Internal Medicine (Endocrinology, Diabetes & Metabolism)
350 PARNASSUS AVE, SUITE 710
SAN FRANCISCO, CA 94117
Specialist
350 PARNASSUS AVE, SUITE 900, BOX 1207
SAN FRANCISCO, CA 94117
Clinical Nurse Specialist (Adult Health)
350 PARNASSUS AVE, SUITE 404
SAN FRANCISCO, CA 94117
Nurse Practitioner (Adult Health)
350 PARNASSUS AVE
SAN FRANCISCO, CA 94117
Internal Medicine
350 PARNASSUS AVE, STE 710
SAN FRANCISCO, CA 94117

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brock Macdonald's NPI number?

The NPI number for Brock Macdonald is 1689901506. It was assigned to this individual provider in the NPPES registry on November 13, 2009.

Where is Brock Macdonald located?

Brock Macdonald practices at 350 Parnassus Ave S-357, San Francisco, CA 94117. The listed phone number is (415) 476-2777.

What is Brock Macdonald's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Brock Macdonald enrolled in Medicare?

Yes. Brock Macdonald is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Brock Macdonald was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.