JOHN DUDLEY FOSS M.D.
NPI 1437221876
Internal Medicine in Jackson, MS
About John Dudley Foss M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN DUDLEY FOSS M.D. (NPI 1437221876) is an individual internal medicine provider in Jackson, Mississippi, licensed in Mississippi (17265) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Alabama School Of Medicine (1998).
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
John Dudley Foss M.d. 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 John Foss reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39202 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.
JACKSON, MS 39202
JACKSON, MS 39202
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 John Foss's NPI number?
The NPI number for John Foss is 1437221876. It was assigned to this individual provider in the NPPES registry on November 14, 2006.
Where is John Foss located?
John Foss practices at 501 Marshall St Suite 208, Jackson, MS 39202. The listed phone number is (601) 352-2273.
What is John Foss's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Foss enrolled in Medicare?
Yes. John Foss 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 John Foss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Foss reassigns Medicare benefits to Southern California Permanente Medical Group (San Diego, 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 John Foss'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 John Foss was last updated on November 29, 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.
# John Dudley Foss, M.D. · NPI 1437221876
Internal Medicine physician in Jackson, Mississippi. Individual provider, active in the CMS NPPES registry since November 14, 2006.
## Identity
- **NPI:** 1437221876 (Entity type: Individual)
- **Enumerated:** November 14, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 17265 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 501 MARSHALL ST, SUITE 208, Jackson, MS 39202-1651
- **Phone:** (601) 352-2273 · **Fax:** (601) 206-6052
## 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:** Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Alabama School Of Medicine, class of 1998
## Record status
- **NPPES last updated:** November 29, 2021
- **Other identifiers:** Medicaid 00012476 (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1437221876) · Data from the CMS NPPES public registry.