Quick answers
- Which hospitals does Geraldine T. Oshea work at?
- Medicare's official clinician data lists Geraldine T. Oshea at 3 hospitals: Mark Twain Medical Center, Sutter Amador Hospital and Sutter Medical Center, Sacramento. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Geraldine T. Oshea see patients?
- Medicare's clinician data lists 2 practice locations, including Jackson, CA. Call before your visit to confirm the address.
- What is Geraldine T. Oshea's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Geraldine T. Oshea accept Medicare assignment?
- Medicare's clinician data says Geraldine T. Oshea may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Geraldine T. Oshea offer telehealth?
- Medicare's clinician data says Geraldine T. Oshea offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Geraldine T. Oshea?
- (209) 257-1057, as listed in official Medicare / NPI Registry data.
- What is Geraldine T. Oshea's NPI number?
- 1013910140. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Geraldine T. Oshea works
Medicare's Facility Affiliation Data lists Geraldine T. Oshea at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mark Twain Medical CenterSan Andreas, CA · Critical Access Hospital · CCN 051332
- Sutter Amador HospitalJackson, CA · Acute Care Hospital · CCN 050014
- Sutter Medical Center, SacramentoSacramento, CA · Acute Care Hospital · CCN 050108
Practice locations
Addresses where Geraldine T. Oshea is enrolled with Medicare (CMS data updated 2026-10-02).
- 235 New York Ranch Rd, Suite BJackson, CA 95642
- 235 New York Ranch Rd B, Foothills Womens CntJackson, CA 95642 (209) 257‑1057
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Jackson
Clinicians with the same Medicare primary specialty in Jackson, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | College Of Osteo Med Of The Pacific At Pomona |
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1013910140 |
| 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