James Kerwin, MD
NPI 1942309232 · Family Medicine Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Kerwin, MD is a Family Medicine Physician provider in Tucson, AZ (NPI 1942309232).
Provider details
- NPI number
- 1942309232
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 20612 (AZ)
Specialties & taxonomies
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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 105 | 71 |
| Levothyroxine Sodium | 75 | 55 |
| Lisinopril | 66 | 43 |
| Amlodipine Besylate | 66 | 43 |
| Losartan Potassium | 64 | 44 |
| Pantoprazole Sodium | 56 | 37 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Kerwin's NPI number?
- James Kerwin's National Provider Identifier (NPI) is 1942309232, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Kerwin's specialty?
- James Kerwin is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Kerwin located?
- James Kerwin's practice location on file with NPPES is 707 N Alvernon Way Ste 101, Tucson, AZ 85711-1830.
- What is James Kerwin's phone number?
- The practice phone number listed in the NPPES registry for James Kerwin is (520) 694-8888.
- Does James Kerwin accept Medicare?
- James Kerwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Kerwin's NPI active?
- Yes — James Kerwin's NPI (1942309232) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.