Brian Irwin, D.O.
NPI 1427070630 · Family Medicine Physician · Tamworth, NH
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Irwin, D.O. is a Family Medicine Physician provider in Tamworth, NH (NPI 1427070630).
Provider details
- NPI number
- 1427070630
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 12236 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 147 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 589 | 154 |
| Atorvastatin Calcium | 450 | 126 |
| Rosuvastatin Calcium | 417 | 111 |
| Amlodipine Besylate | 304 | 85 |
| Levothyroxine Sodium | 289 | 64 |
| Pantoprazole Sodium | 264 | 71 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$77 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2025-03-06
- Certified
- 2025-03-06
Frequently asked questions
- What is Brian Irwin's NPI number?
- Brian Irwin's National Provider Identifier (NPI) is 1427070630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Irwin's specialty?
- Brian Irwin is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Irwin located?
- Brian Irwin's practice location on file with NPPES is 577 White Mountain Highway, Tamworth, NH 03886-4631.
- What is Brian Irwin's phone number?
- The practice phone number listed in the NPPES registry for Brian Irwin is (603) 323-3311.
- Does Brian Irwin accept Medicare?
- Brian Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Irwin's NPI active?
- Yes — Brian Irwin's NPI (1427070630) is active in the NPPES registry as of the last update on 2025-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.