Registry data as of Aug 27, 2026

Felix Allen, MD

Internal Medicine Physician · Montgomery, AL

Felix 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558421750
Name
Felix 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
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). 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 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.

71% 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 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 106 claims were for opioids.

  1. Felix Allen4,761
  2. Specialty average2,785

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.

One hospital or facility affiliation

  1. Hilton Head Regional Physician Group LLCBluffton, SC

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

108 internal medicine physician records list a Montgomery practice address

They are 108 of the 3,661 NPPES records with a Montgomery practice address, and 1,817 internal medicine physician records in Alabama.

Other internal medicine physician records in Alabama

  1. David Aarons, MD, PHDBirmingham, AL1841491859
  2. Wadey Abdel Qader, MDMobile, AL1124713904
  3. Ademola Abdulrauf, MDTuscaloosa, AL1669441846
  4. Samar AbohamadMobile, AL1568049864
  5. Vivian Aboko-Cole Hicks, M.D.Huntsville, AL1316023708
  6. Nessy Abraham, M. DHuntsville, AL1609154681
  7. Shameer Abrahim, MDMobile, AL1255525945
  8. John Abrams, M.D.Auburn, AL1891835294
  9. James Abroms, MDBirmingham, AL1013010164
  10. Mohanad Abu Speitan, M.D.Tuscaloosa, AL1942563820

Common questions

What is Felix Allen, MD's NPI number?

Felix 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 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 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 Allen, MD prescribe under Medicare Part D?

In 2024, Felix Allen, MD had 4,761 Medicare Part D claims for 105 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.