JOHN GAR CARTER MD
NPI 1265574859
Anesthesiology in Baton Rouge, LA
About John Gar Carter Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN GAR CARTER MD (NPI 1265574859) is an individual anesthesiology provider in Baton Rouge, Louisiana, licensed in Louisiana (017655) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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 Gar Carter 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 Reassignments
2Medicare enrollment records show John Carter reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Diamondhead, MS 39525
- Reassigned Medicare billing, Mississippi enrollment
- 731 clinicians in this Medicare group
Biloxi, MS 39530
- Reassigned Medicare billing, Mississippi enrollment
- 57 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 4
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.
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.
BATON ROUGE, LA 70809
BATON ROUGE, LA 70809
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 Carter's NPI number?
The NPI number for John Carter is 1265574859. It was assigned to this individual provider in the NPPES registry on February 12, 2007.
Where is John Carter located?
John Carter practices at 8212 Summa Ave, Baton Rouge, LA 70809. The listed phone number is (225) 769-4403.
What is John Carter's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Carter enrolled in Medicare?
Yes. John Carter 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 Carter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Carter reassigns Medicare benefits to 2 organizations: Memorial Hospital At Gulfport (Diamondhead, MS) and Best Anesthesia, PLLC (Biloxi, 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 Carter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Carter accept?
Health plans from Molina Healthcare list John Carter 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 Carter was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 Gar Carter, MD · NPI 1265574859
Anesthesiology physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since February 12, 2007.
## Identity
- **NPI:** 1265574859 (Entity type: Individual)
- **Enumerated:** February 12, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 017655 (Louisiana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8212 SUMMA AVE, Baton Rouge, LA 70809-3421
- **Phone:** (225) 769-4403 · **Fax:** (769) 440-3384
## 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): Memorial Hospital At Gulfport (NPI 1346677812, Diamondhead, MS); Best Anesthesia, PLLC (NPI 1679286108, Biloxi, MS) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1984
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Other 017655 (LA); Medicare UPIN B65581 (LA)
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Source: [NPI Profile](https://npiprofile.com/npi/1265574859) · Data from the CMS NPPES public registry.