Michael Sweeney, MD
NPI 1083798151 · Family Medicine Physician · Healdsburg, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1083798151
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 7135 (CA)
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
12 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 50 | 50 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 28 | 26 |
| Cephalexin | 27 | 24 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 15 | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (11)
- 101 Rowland Way Ste 220Novato, CA 94945-5056Phone: (415) 878-7200Fax: (415) 369-1387
- 1383 N Mcdowell Blvd Ste 150Petaluma, CA 94954-7118Phone: (707) 573-5240Fax: (707) 573-5416
- 5300 Snyder Ln Ste aRohnert Park, CA 94928-2915Phone: (707) 526-3360Fax: (707) 573-5406
- 2455 Summerfield RdSanta Rosa, CA 95405-7815Phone: (707) 541-7700Fax: (707) 573-5415
- 4700 Hoen AveSanta Rosa, CA 95405-7824Phone: (707) 526-3360Fax: (707) 573-5406
- 34 Mark West Springs Rd Fl 3Santa Rosa, CA 95403-1766Phone: (707) 573-5240Fax: (707) 573-5416
- 401 Bicentennial WaySanta Rosa, CA 95403-2149Phone: (707) 571-4000
- 3883 Airway Dr Ste 120Santa Rosa, CA 95403-1678Phone: (707) 573-5240
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2019-10-17
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.