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JAMES DAVID MARKS MD
NPI 1801854104
Anesthesiology - Critical Care Medicine in San Francisco, CA

Active since May 03, 2006
1001 POTRERO AVE, RM 3C34, SAN FRANCISCO, CA 94110(415) 206-8934(415) 206-3101 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About James David Marks Md NPPES

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

JAMES DAVID MARKS MD (NPI 1801854104) is an individual critical care medicine provider in San Francisco, California, licensed in California (G43710) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1801854104
Entity TypeIndividualMale
Primary Taxonomy207LC0200X
Provider Legal NameJAMES DAVID MARKSCredential: MD
Location Address1001 POTRERO AVE, RM 3C34San Francisco, CA 94110-3518
Mailing AddressPo Box 7464San Francisco, CA 94120-7464 · (415) 206-3103 · Fax (415) 206-3101
Phone(415) 206-8934
Fax(415) 206-3101
Sole ProprietorNo
Enumeration DateMay 3, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1801854104 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAnesthesiology · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LC0200X
License✔ Licensed in CA · G43710
Definition
An anesthesiologist, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedAnesthesiologyTaxonomy 207L00000X · License G43710 (CA)
Also ListedInternal MedicineTaxonomy 207R00000X · License G43710 (CA)

Other Identifiers 1

Medicaid00G437100CA

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.

ROCIO C AGRAZ-LARA RN, PHN
Registered Nurse
1001 POTRERO AVE, ZSFG BUILDING 90 4TH FLOOR
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-8524
DR. SUSAN WLODARCZYK MD
Student in an Organized Health Care Education/Training Program
1001 POTRERO AVE, BLDG 10, 3RD FLOOR, WARD 13 BOX 1364
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5164
AMY DINER PSY.D.
Student in an Organized Health Care Education/Training Program
1001 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5270
CHRISTOPHER RUIZ
Case Manager/Care Coordinator
1001 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-3950
C. STIRLING SOMERS
Counselor
1001 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5270
WILLIAM RUSSEL CARPENTER FNP-C
Nurse Practitioner (Family)
1001 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8000
REGENTS OF THE UNIVERSITY OF CALIFORNIA
Clinical Medical Laboratory
1001 POTRERO AVE, BLDG 100, RM 104
SAN FRANCISCO, CA 94110
San Francisco County (415) 502-4775
DR. DENISE RENEE GONZALEZ MD
Internal Medicine
1001 POTRERO AVE, 1M
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-6075

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 James Marks's NPI number?

The NPI number for James Marks is 1801854104. It was assigned to this individual provider in the NPPES registry on May 3, 2006.

Where is James Marks located?

James Marks practices at 1001 Potrero Ave Rm 3c34, San Francisco, CA 94110. The listed phone number is (415) 206-8934.

What is James Marks's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Critical Care Medicine, with taxonomy code 207LC0200X.

When was this NPI record last updated?

The NPPES record for James Marks was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.