Michael O'Brien, DO
NPI 1043343056 · Internal Medicine Physician · North Conway, NH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael O'Brien, DO is a Internal Medicine Physician provider in North Conway, NH (NPI 1043343056).
Provider details
- NPI number
- 1043343056
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- ACP069 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 52 | 26 |
| Lisinopril | 35 | 15 |
| Apixabanbrand: Eliquis | 30 | — |
| Gabapentin | 28 | 14 |
| Amlodipine Besylate | 27 | — |
| Losartan Potassium | 23 | — |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 273 County RdNew London, NH 03257-5736Phone: (540) 553-1632
Registry dates
- Enumerated
- 2007-03-13
- Last updated
- 2024-01-15
- Certified
- 2024-01-09
Frequently asked questions
- What is Michael O'Brien's NPI number?
- Michael O'Brien's National Provider Identifier (NPI) is 1043343056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael O'Brien's specialty?
- Michael O'Brien is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael O'Brien located?
- Michael O'Brien's practice location on file with NPPES is 3073 White Mountain Hwy, North Conway, NH 03860-7101.
- What is Michael O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Michael O'Brien is (603) 356-5472.
- Does Michael O'Brien accept Medicare?
- Michael O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael O'Brien's NPI active?
- Yes — Michael O'Brien's NPI (1043343056) is active in the NPPES registry as of the last update on 2024-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.