DR. MATHIAS W ALLEN M.D.
NPI 1396002549
Emergency Medicine in Huntsville, AL
About Dr. Mathias W Allen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATHIAS W ALLEN M.D. (NPI 1396002549) is an individual emergency medicine provider in Huntsville, Alabama, licensed in Alabama (MD.34128) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS and maintains a secondary practice location in Winston-salem.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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 (PECOS)
Dr. Mathias W Allen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mathias Allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Huntsville, AL 35801
- Reassigned Medicare billing, Alabama enrollment
- 193 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 35801 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.
HUNTSVILLE, AL 35801
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 Mathias Allen's NPI number?
The NPI number for Mathias Allen is 1396002549. It was assigned to this individual provider in the NPPES registry on April 12, 2012.
Where is Mathias Allen located?
Mathias Allen practices at 101 Sivley Rd SW, Huntsville, AL 35801. The listed phone number is (256) 265-8940.
What is Mathias Allen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mathias Allen enrolled in Medicare?
Yes. Mathias Allen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mathias Allen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mathias Allen reassigns Medicare benefits to Emergency Physicians Group (Huntsville, AL). 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 Mathias Allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mathias Allen accept?
Health plans from Blue Cross and Blue Shield of Alabama list Mathias Allen 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 Mathias Allen was last updated on November 30, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.