Harrison Lancaster, MD
NPI 1902541253 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harrison Lancaster, MD is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1902541253).
Provider details
- NPI number
- 1902541253
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2025010768 (MO)
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
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 66 | — |
| Amlodipine Besylate | 53 | 15 |
| Atorvastatin Calcium | 53 | 19 |
| Metoprolol Succinate | 49 | — |
| Spironolactone | 45 | — |
| Gabapentin | 38 | 11 |
| Omeprazole |
Practice location
Mailing address
Additional practice locations (1)
- 915 N Grand BlvdSaint Louis, MO 63106-1621Phone: (314) 652-4100
Registry dates
- Enumerated
- 2022-05-02
- Last updated
- 2025-09-18
- Certified
- 2025-09-18
Frequently asked questions
- What is Harrison Lancaster's NPI number?
- Harrison Lancaster's National Provider Identifier (NPI) is 1902541253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harrison Lancaster's specialty?
- Harrison Lancaster is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harrison Lancaster located?
- Harrison Lancaster's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is Harrison Lancaster's phone number?
- The practice phone number listed in the NPPES registry for Harrison Lancaster is (314) 747-3000.
- Does Harrison Lancaster accept Medicare?
- Harrison Lancaster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harrison Lancaster's NPI active?
- Yes — Harrison Lancaster's NPI (1902541253) is active in the NPPES registry as of the last update on 2025-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.