Ian Downin, MD, MHA
NPI 1790435832 · Hospitalist Physician · Chambersburg, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Downin, MD, MHA is a Hospitalist Physician provider in Chambersburg, PA (NPI 1790435832).
Provider details
- NPI number
- 1790435832
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MHA
- Sex
- Male
- Sole proprietor
- No
- License
- MD489010 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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
4 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 41 | 15 |
| Gabapentin | 32 | — |
| Amlodipine Besylate | 31 | — |
| Lisinopril | 31 | — |
| Omeprazole | 26 | — |
| Rosuvastatin Calcium | 26 | — |
| Pantoprazole Sodium |
Practice location
Mailing address
Additional practice locations (3)
- 147 Gettys StGettysburg, PA 17325-2534Phone: (717) 339-2025Fax: (717) 339-2011
- 500 University DrHershey, PA 17033-2360Phone: (717) 531-1368
- 501 E Main StWaynesboro, PA 17268-2353Phone: (717) 765-4000Fax: (717) 765-3669
Registry dates
- Enumerated
- 2022-03-23
- Last updated
- 2025-08-08
- Certified
- 2025-08-08
Frequently asked questions
- What is Ian Downin's NPI number?
- Ian Downin's National Provider Identifier (NPI) is 1790435832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Downin's specialty?
- Ian Downin is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Downin located?
- Ian Downin's practice location on file with NPPES is 112 N 7th St, Chambersburg, PA 17201-1720.
- What is Ian Downin's phone number?
- The practice phone number listed in the NPPES registry for Ian Downin is (717) 217-4300.
- Does Ian Downin accept Medicare?
- Ian Downin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Downin's NPI active?
- Yes — Ian Downin's NPI (1790435832) is active in the NPPES registry as of the last update on 2025-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.