NPPES file of Aug 9, 2026

James David Marks, MD

Critical Care Medicine (Anesthesiology) Physician · San Francisco, CA

James David Marks, MD is a critical care medicine (anesthesiology) physician with a practice address in San Francisco, California, and NPI 1801854104, issued on May 3, 2006. Check the license (California G43710, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801854104
Name
James David Marks
Credential
MD
Primary taxonomy
Critical Care Medicine (Anesthesiology) Physician 207LC0200X
License number
G43710 CA
Self-reported in NPPES; status is on the state search
Practice location
1001 Potrero Ave, San Francisco, CA 94110
Phone
(415) 206-8934
Enumerated
May 3, 2006
Record last updated
Sep 11, 2025
Fax
(415) 206-3101
Medicaid ID
00G437100 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest critical care medicine (anesthesiology) physician records → All 146 in California → Look up another NPI →

Also registered at 1001 Potrero Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elizabeth Abbs, M.D.Internal Medicine Physician1295269983
  2. Atokena AbeStudent in an Organized Health Care Education/Training Program1043130149
  3. Mary Ann AbilleRegistered Nurse1699155804
  4. Nasrin Aboudamous, FNPFamily Nurse Practitioner1699579912
  5. Elizabeth AdvientoRegistered Nurse1124968987
  6. Rocio Agraz-Lara, RN, PHNRegistered Nurse1003075995

Verify James David Marks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G43710    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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James David Marks among 146 critical care medicine (anesthesiology) physician records in California

James David Marks, MD is one of 146 critical care medicine (anesthesiology) physician records with a practice address in California. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 72% newer
  • In a Medicare fileNo · 86% of these records are
  • In the CMS Doctors and Clinicians fileNo · 84% of these records are
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Anesthesiology) Physician providers in California

There are 146 critical care medicine (anesthesiology) physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 146 in California → Every provider in San Francisco → Critical Care Medicine (Anesthesiology) Physician nationwide →

The 8 critical care medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Romain Pirracchio, MD PHDSan Francisco, CA 941101376934679
  2. Kristina Sullivan, M.D.San Francisco, CA 941151871674226
  3. Celine Gonzalez, MDSan Francisco, CA 941171003553892
  4. Konstantin Ovodov, MDSan Francisco, CA 941181164479309
  5. Marek Brzezinski, MDSan Francisco, CA 941211881625762
  6. Martin Stechert, M.D.San Francisco, CA 941211619908373
  7. Daniel Burkhardt, MDSan Francisco, CA 941431609831312
  8. Lundy Campbell, M.D.San Francisco, CA 941431780746354

Common questions

What is James David Marks, MD's NPI number?

James David Marks, MD's National Provider Identifier (NPI) is 1801854104, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James David Marks, MD located?

The NPPES record lists a practice address at 1001 Potrero Ave, San Francisco, CA, 94110. Phone: (415) 206-8934. Providers update this record themselves, so call before visiting.

How can I verify James David Marks, MD's license?

NPPES lists California license number G43710, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.