DR. BRITAIN ANDREW JOSEPH GAILLIOT MD
NPI 1821401159
Radiology - Diagnostic Radiology in Keesler Afb, MS
About Dr. Britain Andrew Joseph Gailliot Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRITAIN ANDREW JOSEPH GAILLIOT MD (NPI 1821401159) is an individual diagnostic radiology provider in Keesler Afb, Mississippi, licensed in California (RHL00202905) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
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
Dr. Britain Andrew Joseph Gailliot 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
36Medicare enrollment records show Britain Gailliot reassigns Medicare billing to 36 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Meridian, MS 39301
- Reassigned Medicare billing, Mississippi enrollment
- 349 clinicians in this Medicare group
Florence, AL 35630
- Reassigned Medicare billing, Mississippi enrollment
Little Rock, AR 72209
- Reassigned Medicare billing, Arkansas enrollment
- Also billed through NPI 1467528026 (Arkansas)
- 1,246 clinicians in this Medicare group
Little Rock, AR 72205
- Reassigned Medicare billing, Arkansas enrollment
- 88 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Tennessee enrollment
- 1,003 clinicians in this Medicare group
Carmel, IN 46032
- Reassigned Medicare billing, Indiana enrollment
- 195 clinicians in this Medicare group
Richmond, IN 47374
- Reassigned Medicare billing, Indiana enrollment
- 527 clinicians in this Medicare group
Wilmington, NC 28401
- Reassigned Medicare billing, North Carolina enrollment
- 444 clinicians in this Medicare group
Normal, IL 61761
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Dayton, OH 45409
- Reassigned Medicare billing, Mississippi enrollment
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 15
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 39534 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.
KEESLER AFB, MS 39534
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 Britain Gailliot's NPI number?
The NPI number for Britain Gailliot is 1821401159. It was assigned to this individual provider in the NPPES registry on June 4, 2014.
Where is Britain Gailliot located?
Britain Gailliot practices at 301 Fisher St, Keesler Afb, MS 39534. The listed phone number is (301) 744-0861.
What is Britain Gailliot's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Britain Gailliot enrolled in Medicare?
Yes. Britain Gailliot 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 Britain Gailliot's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Britain Gailliot reassigns Medicare benefits to 36 organizations: Medical Foundation, Inc. (Meridian, MS), Ecm Health Group LLC (Florence, AL), University Of Arkansas For Medical Sciences (Little Rock, AR), Radiology Consultants Of Little Rock, PA (Little Rock, AR), Summit Medical Group, PLLC (Brentwood, TN) and 31 more organizations, listed in the Medicare section above. 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 Britain Gailliot's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Britain Gailliot accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Arkansas Blue Cross and Blue Shield and 7 other insurers list Britain Gailliot 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 Britain Gailliot was last updated on October 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.
# Dr. Britain Andrew Joseph Gailliot, MD · NPI 1821401159
Diagnostic Radiology physician in Keesler Afb, Mississippi. Individual provider, active in the CMS NPPES registry since June 4, 2014.
## Identity
- **NPI:** 1821401159 (Entity type: Individual)
- **Enumerated:** June 4, 2014
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** RHL00202905 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 301 FISHER ST, Keesler Afb, MS 39534-2508
- **Phone:** (301) 744-0861
## 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:** 36 organizations under Medicare reassignment (form CMS-855R): Medical Foundation, Inc. (NPI 1609820539, Meridian, MS); Ecm Health Group LLC (NPI 1346588852, Florence, AL); University Of Arkansas For Medical Sciences (NPI 1285307744, Little Rock, AR); Radiology Consultants Of Little Rock, PA (NPI 1639124118, Little Rock, AR); Summit Medical Group, PLLC (NPI 1659090298, Brentwood, TN); and 31 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** October 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821401159) · Data from the CMS NPPES public registry.