Marc Whitacre, M.D.
NPI 1861424087 · Ophthalmology Physician · Havre, MT
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Whitacre, M.D. is a Ophthalmology Physician provider in Havre, MT (NPI 1861424087).
Provider details
- NPI number
- 1861424087
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 12669 (MT)
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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 129 | 35 |
| Timolol Maleate | 63 | 19 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 46 | 16 |
| Prednisolone Acetate | 39 | 24 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 18 | 17 |
| Dorzolamide Hcl | 17 | — |
| Brimonidine Tartrate | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2025-10-09
- Certified
- 2025-10-09
Frequently asked questions
- What is Marc Whitacre's NPI number?
- Marc Whitacre's National Provider Identifier (NPI) is 1861424087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Whitacre's specialty?
- Marc Whitacre is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Whitacre located?
- Marc Whitacre's practice location on file with NPPES is 20 13th St W, Havre, MT 59501-5215.
- What is Marc Whitacre's phone number?
- The practice phone number listed in the NPPES registry for Marc Whitacre is (406) 262-2020.
- Does Marc Whitacre accept Medicare?
- Marc Whitacre is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Whitacre's NPI active?
- Yes — Marc Whitacre's NPI (1861424087) is active in the NPPES registry as of the last update on 2025-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.