Douglas Barr, MD
NPI 1134180359 · Internal Medicine Physician · Portland, ME
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Barr, MD is a Internal Medicine Physician provider in Portland, ME (NPI 1134180359).
Provider details
- NPI number
- 1134180359
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 014123 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
1,896 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 | 338 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 219 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 199 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 147 | $84 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 144 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 140 | $16 |
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 | 512 | 154 |
| Lisinopril | 462 | 131 |
| Amlodipine Besylate | 393 | 117 |
| Simvastatin | 361 | 106 |
| Levothyroxine Sodium | 280 | 70 |
| Metoprolol Succinate | 221 | 63 |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-29
- Last updated
- 2026-04-02
- Certified
- 2026-04-02
Frequently asked questions
- What is Douglas Barr's NPI number?
- Douglas Barr's National Provider Identifier (NPI) is 1134180359, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Barr's specialty?
- Douglas Barr is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Barr located?
- Douglas Barr's practice location on file with NPPES is 84 Marginal Way, Portland, ME 04101.
- What is Douglas Barr's phone number?
- The practice phone number listed in the NPPES registry for Douglas Barr is (207) 774-5816.
- Does Douglas Barr accept Medicare?
- Douglas Barr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Barr's NPI active?
- Yes — Douglas Barr's NPI (1134180359) is active in the NPPES registry as of the last update on 2026-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.