Aaron Ratliff, MD
NPI 1538805213 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Ratliff, MD is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1538805213).
Provider details
- NPI number
- 1538805213
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 86256-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 68 | 24 |
| Lisinopril | 28 | — |
| Alprazolam | 27 | — |
| Amlodipine Besylate | 26 | — |
| Levothyroxine Sodium | 26 | — |
| Carvedilol | 23 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-05-06
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Aaron Ratliff's NPI number?
- Aaron Ratliff's National Provider Identifier (NPI) is 1538805213, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Ratliff's specialty?
- Aaron Ratliff is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Ratliff located?
- Aaron Ratliff's practice location on file with NPPES is 5000 W Chambers St, Milwaukee, WI 53210-1650.
- What is Aaron Ratliff's phone number?
- The practice phone number listed in the NPPES registry for Aaron Ratliff is (414) 447-2000.
- Does Aaron Ratliff accept Medicare?
- Aaron Ratliff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Ratliff's NPI active?
- Yes — Aaron Ratliff's NPI (1538805213) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.