Quick answers
- Which hospitals does Jonathan E. Tammela work at?
- Medicare's official clinician data lists Jonathan E. Tammela at 2 hospitals: French Hospital Medical Center and Marian Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan E. Tammela see patients?
- Medicare's clinician data lists 1 practice location in Santa Maria, CA. Call before your visit to confirm the address.
- What is Jonathan E. Tammela's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty, and also Gynecological Oncology.
- Does Jonathan E. Tammela accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan E. Tammela accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Jonathan E. Tammela?
- (805) 354-7101, as listed in official Medicare / NPI Registry data.
- What is Jonathan E. Tammela's NPI number?
- 1265451058. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan E. Tammela works
Medicare's Facility Affiliation Data lists Jonathan E. Tammela at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- French Hospital Medical CenterSan Luis Obispo, CA · Acute Care Hospital · CCN 050232
- Marian Regional Medical CenterSanta Maria, CA · Acute Care Hospital · CCN 050107
Practice locations
Addresses where Jonathan E. Tammela is enrolled with Medicare (CMS data updated 2026-10-02).
- 220 S Palisade Dr, Suite 203Santa Maria, CA 93454 (805) 354‑7101
Group practices
Medicare enrollment lists Jonathan E. Tammela as a member of this group (CMS data updated 2026-10-02).
- Pacific Central Coast Health Centers253 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
- Gynecological Oncologyalso
Other OB-GYNs in Santa Maria
Clinicians with the same Medicare primary specialty in Santa Maria, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265451058 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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