BRIAN J MCMAHON MD
NPI 1427093574
Internal Medicine in Anchorage, AK
About Brian J Mcmahon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN J MCMAHON MD (NPI 1427093574) is an individual internal medicine provider in Anchorage, Alaska, licensed in Alaska (4256) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (1971).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Brian J Mcmahon 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
5Medicare enrollment records show Brian Mcmahon reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anchorage, AK 99508
- Reassigned Medicare billing, Texas enrollment
- 1,373 clinicians in this Medicare group
Fairbanks, AK 99701
- Reassigned Medicare billing, Texas enrollment
- 207 clinicians in this Medicare group
Koliganek, AK 99576
- Reassigned Medicare billing, Texas enrollment
- 360 clinicians in this Medicare group
Yakutat, AK 99689
- Reassigned Medicare billing, Texas enrollment
- 640 clinicians in this Medicare group
Kobuk, AK 99751
- Reassigned Medicare billing, Texas enrollment
- 208 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 99508 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
ANCHORAGE, AK 99508
ANCHORAGE, AK 99508
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 Brian Mcmahon's NPI number?
The NPI number for Brian Mcmahon is 1427093574. It was assigned to this individual provider in the NPPES registry on June 20, 2006.
Where is Brian Mcmahon located?
Brian Mcmahon practices at 4315 Diplomacy Dr, Anchorage, AK 99508. The listed phone number is (907) 729-1500.
What is Brian Mcmahon's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Brian Mcmahon enrolled in Medicare?
Yes. Brian Mcmahon 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 Brian Mcmahon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Mcmahon reassigns Medicare benefits to 5 organizations: Alaska Native Tribal Health Consortium (Anchorage, AK), Tanana Chiefs Conference (Fairbanks, AK), Bristol Bay Area Health Corporation (Koliganek, AK), Southeast Alaska Regional Health Consortium (Yakutat, AK) and Maniilaq Association (Kobuk, AK). 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 Brian Mcmahon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian Mcmahon accept?
Health plans from Moda Health Plan, Inc. and Premera Blue Cross Blue Shield of Alaska list Brian Mcmahon 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 Brian Mcmahon was last updated on October 15, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Brian J Mcmahon, MD · NPI 1427093574
Internal Medicine physician in Anchorage, Alaska. Individual provider, active in the CMS NPPES registry since June 20, 2006.
## Identity
- **NPI:** 1427093574 (Entity type: Individual)
- **Enumerated:** June 20, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 4256 (Alaska)
- **Sole proprietor:** No
## Practice location
- **Address:** 4315 DIPLOMACY DR, Anchorage, AK 99508-5926
- **Phone:** (907) 729-1500 · **Fax:** (907) 729-2082
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Alaska Native Tribal Health Consortium (NPI 1437189339, Anchorage, AK); Tanana Chiefs Conference (NPI 1821201278, Fairbanks, AK); Bristol Bay Area Health Corporation (NPI 1013079607, Koliganek, AK); Southeast Alaska Regional Health Consortium (NPI 1033323605, Yakutat, AK); Maniilaq Association (NPI 1265709901, Kobuk, AK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 1971
## Record status
- **NPPES last updated:** October 15, 2008
- **Other identifiers:** Medicare UPIN H57932 (AK); Medicare ID-Type Unspecified 8EZ41E (AK); Medicaid MD1421 (AK)
---
Source: [NPI Profile](https://npiprofile.com/npi/1427093574) · Data from the CMS NPPES public registry.