Quick answers
- Does Sean M. Nadalin accept Medicare assignment?
- Yes. Medicare's clinician data says Sean M. Nadalin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Sean M. Nadalin's NPI number?
- 1518430628. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sean M. Nadalin works
Medicare's Facility Affiliation Data lists Sean M. Nadalin at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050136
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174
Practice locations
Addresses where Sean M. Nadalin is enrolled with Medicare (CMS data updated October 2, 2026).
- 1179 N McDowell BlvdPetaluma, CA 94954 (707) 559‑7500
- 5900 State Farm Dr, Suite 200Rohnert Park, CA 94928 (707) 559‑7600
- PO Box, Suite 910Point Reyes Station, CA 94956
Group practices
Medicare enrollment lists Sean M. Nadalin as a member of these groups (CMS data updated October 2, 2026).
- Petaluma Health Center Inc73 clinicians in the group
- Coastal Health Alliance37 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Petaluma
Clinicians with the same Medicare primary specialty in Petaluma, CA — not a recommendation.
Other clinicians in Petaluma Health Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518430628 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians