Felix Allen, MD
NPI 1558421750 · Internal Medicine Physician · Montgomery, AL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Felix Allen, MD is a Internal Medicine Physician provider in Montgomery, AL (NPI 1558421750).
Provider details
- NPI number
- 1558421750
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 15363 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 116 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 344 | 48 |
| Amlodipine Besylate | 246 | 37 |
| Famotidine | 157 | 20 |
| Carvedilol | 127 | 15 |
| Potassium Chloride | 118 | 18 |
| Apixabanbrand: Eliquis | 112 | 16 |
| Gabapentin | 99 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2023-04-26
- Certified
- 2023-04-26
Frequently asked questions
- What is Felix Allen's NPI number?
- Felix Allen's National Provider Identifier (NPI) is 1558421750, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Felix Allen's specialty?
- Felix Allen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Felix Allen located?
- Felix Allen's practice location on file with NPPES is 100 Perry Hill Rd, Montgomery, AL 36109-3630.
- What is Felix Allen's phone number?
- The practice phone number listed in the NPPES registry for Felix Allen is (334) 832-0231.
- Does Felix Allen accept Medicare?
- Felix Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Felix Allen's NPI active?
- Yes — Felix Allen's NPI (1558421750) is active in the NPPES registry as of the last update on 2023-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.