JOHN C FARMER M.D.
NPI 1891727640
Internal Medicine in Canton, MS
About John C Farmer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN C FARMER M.D. (NPI 1891727640) is an individual internal medicine provider in Canton, Mississippi, licensed in Mississippi (16951) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (1974).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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 C Farmer 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 Reassignments
2Medicare enrollment records show John Farmer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Canton, MS 39046
- Reassigned Medicare billing, Mississippi enrollment
- 25 clinicians in this Medicare group
Flowood, MS 39232
- Reassigned Medicare billing, Mississippi enrollment
- 70 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 39046 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.
CANTON, MS 39046
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 Farmer's NPI number?
The NPI number for John Farmer is 1891727640. It was assigned to this individual provider in the NPPES registry on July 6, 2006.
Where is John Farmer located?
John Farmer practices at 1668 W Peace St, Canton, MS 39046. The listed phone number is (601) 859-5213.
What is John Farmer's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Farmer enrolled in Medicare?
Yes. John Farmer 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 organizations bill Medicare for John Farmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Farmer reassigns Medicare benefits to 2 organizations: G A Carmichael Family Health Center Inc (Canton, MS) and Family Health Care Clinic, Inc. (Flowood, MS). Each 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 Farmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Farmer accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 3 other insurers list John Farmer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Farmer was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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 C Farmer, M.D. · NPI 1891727640
Internal Medicine physician in Canton, Mississippi. Individual provider, active in the CMS NPPES registry since July 6, 2006.
## Identity
- **NPI:** 1891727640 (Entity type: Individual)
- **Enumerated:** July 6, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 16951 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 1668 W PEACE ST, Canton, MS 39046-5332
- **Phone:** (601) 859-5213 · **Fax:** (601) 859-5213
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): G A Carmichael Family Health Center Inc (NPI 1255498176, Canton, MS); Family Health Care Clinic, Inc. (NPI 1689440133, Flowood, MS) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 1974
## Record status
- **NPPES last updated:** December 10, 2025
- **Other identifiers:** Medicaid 05375702 (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1891727640) · Data from the CMS NPPES public registry.