NPPES file of Aug 9, 2026

Felix James Allen, MD

Internal Medicine Physician · Montgomery, AL

Felix James Allen, MD is an internal medicine physician with a practice address in Montgomery, Alabama, and NPI 1558421750, issued on Dec 11, 2006. Check the license (Alabama 15363, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558421750
Name
Felix James Allen
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
15363 AL
Self-reported in NPPES; status is on the state search
Practice location
100 Perry Hill RD, Montgomery, AL 36109
Phone
(334) 832-0231
Enumerated
Dec 11, 2006
Record last updated
Apr 26, 2023
Fax
(844) 552-4198
Medicaid ID
000085756 AL
Medicare enrollment
Enrolled (PECOS I20250804000063); accepts Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 100 Perry Hill RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kathleen Morgan, PTGeriatric Physical Therapist1811603103

Verify Felix James Allen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlabama Board of Medical Examiners
    Search for license 15363
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Alabama license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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50% more Medicare Part D claims than the average internal medicine physician in 2024

4,761 Medicare Part D claims for 105 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 106 claims were for opioids.

  1. Felix Allen4,761
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium344 claims
  2. Amlodipine Besylate246 claims
  3. Famotidine157 claims
  4. Carvedilol127 claims
  5. Potassium Chloride118 claims
  6. Eliquis112 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Hilton Head Regional Physician Group LLCBluffton, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Felix James Allen among 1,705 internal medicine physician records in Alabama

Felix James Allen, MD is one of 1,705 internal medicine physician records with a practice address in Alabama. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 49% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1989 · median 2003 among the 1,136 with a school on file
  • Record last updated2023 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

105 internal medicine physician records list a practice address in Montgomery

They are 105 of the 3,661 NPPES records with a practice address in Montgomery, and 1,705 internal medicine physician records in Alabama.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jean Darbouze, MDMontgomery, AL 361091558469650
  2. William Foster, MDMontgomery, AL 361091902907124
  3. Monjurul Islam, M.D.Montgomery, AL 361091023192796
  4. Hari Kapur, M.DMontgomery, AL 361091750370482
  5. J Karst, M.D.Montgomery, AL 361091194759662
  6. Sylvia McQueen, MDMontgomery, AL 361091255477170
  7. Boniface Okafor, M.D.Montgomery, AL 361091346355757
  8. Jayesh PatelMontgomery, AL 361091851400626

Common questions

What is Felix James Allen, MD's NPI number?

Felix James Allen, MD's National Provider Identifier (NPI) is 1558421750, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Felix James Allen, MD located?

The NPPES record lists a practice address at 100 Perry Hill RD, Montgomery, AL, 36109. Phone: (334) 832-0231. Providers update this record themselves, so call before visiting.

How can I verify Felix James Allen, MD's license?

NPPES lists Alabama license number 15363, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Felix James Allen, MD prescribe under Medicare Part D?

In 2024, Felix James Allen, MD had 4,761 Medicare Part D claims for 105 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.