DR. JOHN W. THOMAS M.D.
NPI 1649621574
Emergency Medicine in Huntsville, AL
About Dr. John W. Thomas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN W. THOMAS M.D. (NPI 1649621574) is an individual emergency medicine provider in Huntsville, Alabama, licensed in Alabama (MD.38424) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS and is a graduate of University Of Alabama School Of Medicine (2016).
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
Dr. John W. Thomas 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
3Medicare enrollment records show John Thomas reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Huntsville, AL 35801
- Reassigned Medicare billing, Alabama enrollment
- 193 clinicians in this Medicare group
Eufaula, AL 36027
- Reassigned Medicare billing, Alabama enrollment
- 55 clinicians in this Medicare group
Ozark, AL 36360
- Reassigned Medicare billing, Alabama enrollment
- 140 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 John Thomas's NPI number?
The NPI number for John Thomas is 1649621574. It was assigned to this individual provider in the NPPES registry on June 22, 2016.
Where is John Thomas located?
John Thomas practices at 101 Sivley Rd SW, Huntsville, AL 35801. The listed phone number is (256) 265-9889.
What is John Thomas's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Thomas enrolled in Medicare?
Yes. John Thomas 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 Thomas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Thomas reassigns Medicare benefits to 3 organizations: Emergency Physicians Group (Huntsville, AL), Ess Of Eufaula, LLC (Eufaula, AL) and Newgen Alabama Billing LLC (Ozark, AL). 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 Thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Thomas accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Alabama and Blue Cross and Blue Shield of Texas list John Thomas 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 Thomas was last updated on August 5, 2019. 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.
# Dr. John W. Thomas, M.D. · NPI 1649621574
Emergency Medicine physician in Huntsville, Alabama. Individual provider, active in the CMS NPPES registry since June 22, 2016.
## Identity
- **NPI:** 1649621574 (Entity type: Individual)
- **Enumerated:** June 22, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD.38424 (Alabama)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 SIVLEY RD SW, Huntsville, AL 35801-4470
- **Phone:** (256) 265-9889 · **Fax:** (256) 265-9910
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Emergency Physicians Group (NPI 1659366649, Huntsville, AL); Ess Of Eufaula, LLC (NPI 1013650456, Eufaula, AL); Newgen Alabama Billing LLC (NPI 1013744424, Ozark, AL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Alabama School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** August 5, 2019
- **Other identifiers:** Other MD.38424 (AL); Other R5215 (TX); Other BP10057669 (TX)
---
Source: [NPI Profile](https://npiprofile.com/npi/1649621574) · Data from the CMS NPPES public registry.