NPPES file of Aug 9, 2026

Jeffrey M. Fox, MD

Gastroenterology Physician · San Rafael, CA

Jeffrey M. Fox, MD is a gastroenterology physician with a practice address in San Rafael, California, and NPI 1972687945, issued on Oct 25, 2006. Check the license (California A72285, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972687945
Name
Jeffrey M. Fox
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A72285 CA
Self-reported in NPPES; status is on the state search
Practice location
99 Montecillo RD, San Rafael, CA 94903
Phone
(415) 444-2000
Enumerated
Oct 25, 2006
Record last updated
Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A722850 CA
Medicare enrollment
Enrolled (PECOS I20040304001361); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 99 Montecillo RD

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

  1. Scott Adelman, MDCardiovascular Disease Physician1396829362
  2. Navid AfrahPhysical Therapist1275997017
  3. Omar Ahmed, PHARMDAmbulatory Care Pharmacist1285254037
  4. Mary Air, M.D.Physical Medicine & Rehabilitation Physician1376772913
  5. Tarik Alagha, MDInternal Medicine Physician1740869676
  6. Paul Alpert, MDUrology Physician1417031402

Verify Jeffrey M. Fox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A72285
    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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2.9 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,370 Medicare Part D claims for 1,502 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Jeffrey Fox2,370
  2. Specialty average811

Most prescribed

  1. Gavilyte-C1,219 claims
  2. Omeprazole246 claims
  3. Pantoprazole Sodium116 claims
  4. Budesonide Dr74 claims
  5. Mesalamine64 claims
  6. Ursodiol43 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $29.75

1 payment: food and beverage; the largest payer was CapsoVision, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jeffrey Fox$29.75
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Permanente Medical Group IncStockton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jeffrey M. Fox among 2,140 gastroenterology physician records in California

Jeffrey M. Fox, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 48% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1997 · median 2002 among the 1,538 with a school on file
  • Record last updated2021 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Robert Myers, MDSan Rafael, CA 949031548344518
  2. Sheba Vohra, M.D.San Rafael, CA 949031285957670
  3. John Bettinger, M.D.Greenbrae, CA 949041225037500
  4. David Bloom, MDGreenbrae, CA 949041619931011
  5. Christopher Hogan, M.D.Greenbrae, CA 949041376867010
  6. Danny Kao, MDGreenbrae, CA 949041396709796
  7. Natalie Lee, MDGreenbrae, CA 949041447371505
  8. Vikram Malladi, MDGreenbrae, CA 949041902814015

Common questions

What is Jeffrey M. Fox, MD's NPI number?

Jeffrey M. Fox, MD's National Provider Identifier (NPI) is 1972687945, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jeffrey M. Fox, MD located?

The NPPES record lists a practice address at 99 Montecillo RD, San Rafael, CA, 94903. Phone: (415) 444-2000. Providers update this record themselves, so call before visiting.

How can I verify Jeffrey M. Fox, MD's license?

NPPES lists California license number A72285, 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.

How much does Jeffrey M. Fox, MD prescribe under Medicare Part D?

In 2024, Jeffrey M. Fox, MD had 2,370 Medicare Part D claims for 1,502 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

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

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.