Peter Witham, MD
NPI 1417043639 · Internal Medicine Physician · Southwest Harbor, ME
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Witham, MD is a Internal Medicine Physician provider in Southwest Harbor, ME (NPI 1417043639).
Provider details
- NPI number
- 1417043639
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD19832 (ME)
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
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 · 107 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 354 | 90 |
| Amlodipine Besylate | 272 | 74 |
| Lisinopril | 219 | 59 |
| Metoprolol Succinate | 210 | 48 |
| Levothyroxine Sodium | 206 | 50 |
| Rosuvastatin Calcium | 194 | 56 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2019-08-23
Frequently asked questions
- What is Peter Witham's NPI number?
- Peter Witham's National Provider Identifier (NPI) is 1417043639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Witham's specialty?
- Peter Witham is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Witham located?
- Peter Witham's practice location on file with NPPES is 16 Community Ln, Southwest Harbor, ME 04679-4273.
- What is Peter Witham's phone number?
- The practice phone number listed in the NPPES registry for Peter Witham is (207) 244-5630.
- Does Peter Witham accept Medicare?
- Peter Witham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Witham's NPI active?
- Yes — Peter Witham's NPI (1417043639) is active in the NPPES registry as of the last update on 2019-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.