John Sommer, MD
NPI 1275732364 · Internal Medicine Physician · Brunswick, ME
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sommer, MD is a Internal Medicine Physician provider in Brunswick, ME (NPI 1275732364).
Provider details
- NPI number
- 1275732364
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD18801 (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 tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
967 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 177 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 154 | $87 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 96 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 87 | $7 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 84 | $61 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 68 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 374 | 110 |
| Lisinopril | 303 | 86 |
| Losartan Potassium | 217 | 62 |
| Amlodipine Besylate | 206 | 65 |
| Levothyroxine Sodium | 195 | 48 |
| Rosuvastatin Calcium | 189 | 58 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-17
- Last updated
- 2021-10-22
- Certified
- 2021-10-22
Frequently asked questions
- What is John Sommer's NPI number?
- John Sommer's National Provider Identifier (NPI) is 1275732364, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sommer's specialty?
- John Sommer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Sommer located?
- John Sommer's practice location on file with NPPES is 114 Bath Rd, Brunswick, ME 04011-2606.
- What is John Sommer's phone number?
- The practice phone number listed in the NPPES registry for John Sommer is (207) 798-4400.
- Does John Sommer accept Medicare?
- John Sommer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sommer's NPI active?
- Yes — John Sommer's NPI (1275732364) is active in the NPPES registry as of the last update on 2021-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.