Jeffrey Fox, MD
NPI 1972687945 · Gastroenterology Physician · San Rafael, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Fox, MD is a Gastroenterology Physician provider in San Rafael, CA (NPI 1972687945).
Provider details
- NPI number
- 1972687945
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A72285 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 1,219 | 1,191 |
| Omeprazole | 246 | 95 |
| Pantoprazole Sodium | 116 | 44 |
| Budesonidebrand: Budesonide Dr | 74 | 20 |
| Mesalamine | 64 | 22 |
| Ursodiol | 43 | 11 |
| Lipase/Protease/Amylasebrand: Zenpep | 34 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2021-12-20
Frequently asked questions
- What is Jeffrey Fox's NPI number?
- Jeffrey Fox's National Provider Identifier (NPI) is 1972687945, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Fox's specialty?
- Jeffrey Fox is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Fox located?
- Jeffrey Fox's practice location on file with NPPES is 99 Montecillo Rd, San Rafael, CA 94903-3308.
- What is Jeffrey Fox's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Fox is (415) 444-2000.
- Does Jeffrey Fox accept Medicare?
- Jeffrey Fox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Fox's NPI active?
- Yes — Jeffrey Fox's NPI (1972687945) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.