JEFFREY M. FOX MD
NPI 1972687945
Internal Medicine - Gastroenterology in San Rafael, CA
About Jeffrey M. Fox Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JEFFREY M. FOX MD (NPI 1972687945) is an individual gastroenterology provider in San Rafael, California, licensed in California (A72285) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Jeffrey M. Fox Md 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.
Medicare Billing Reassignment
Medicare enrollment records show Jeffrey Fox reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94903 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SAN RAFAEL, CA 94903
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 Jeffrey Fox's NPI number?
The NPI number for Jeffrey Fox is 1972687945. It was assigned to this individual provider in the NPPES registry on October 25, 2006.
Where is Jeffrey Fox located?
Jeffrey Fox practices at 99 Montecillo Rd, San Rafael, CA 94903. The listed phone number is (415) 444-2000.
What is Jeffrey Fox's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Jeffrey Fox enrolled in Medicare?
Yes. Jeffrey Fox 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.
Which organization bills Medicare for Jeffrey Fox's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Fox reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jeffrey Fox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Jeffrey Fox was last updated on December 20, 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.
# Jeffrey M. Fox, MD · NPI 1972687945
Gastroenterology physician in San Rafael, California. Individual provider, active in the CMS NPPES registry since October 25, 2006.
## Identity
- **NPI:** 1972687945 (Entity type: Individual)
- **Enumerated:** October 25, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A72285 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 99 MONTECILLO RD, San Rafael, CA 94903-3308
- **Phone:** (415) 444-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1235226531, Richmond, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 1997
## Record status
- **NPPES last updated:** December 20, 2021
- **Other identifiers:** Medicaid 00A722850 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1972687945) · Data from the CMS NPPES public registry.