Quick answers
- Which hospitals does Joanna Ortega work at?
- Medicare's official clinician data lists Joanna Ortega at 1 hospital: Adventist Health Ukiah Valley. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joanna Ortega see patients?
- Medicare's clinician data lists 2 practice locations, including San Francisco, CA and Ukiah, CA. Call before your visit to confirm the address.
- What is Joanna Ortega's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Joanna Ortega accept Medicare assignment?
- Yes. Medicare's clinician data says Joanna Ortega 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 Joanna Ortega?
- (628) 206-5753, as listed in official Medicare / NPI Registry data.
- What is Joanna Ortega's NPI number?
- 1811504533. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joanna Ortega works
Medicare's Facility Affiliation Data lists Joanna Ortega at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health Ukiah ValleyUkiah, CA · Acute Care Hospital · CCN 050301
Practice locations
Addresses where Joanna Ortega is enrolled with Medicare (CMS data updated 2026-10-02).
- 1001 Potrero AveSan Francisco, CA 94110 (628) 206‑5753
- 275 Hospital DrUkiah, CA 95482 (707) 462‑3111
Group practices
Medicare enrollment lists Joanna Ortega as a member of these groups (CMS data updated 2026-10-02).
- University of California SFGH Medical Group587 clinicians in the group
- Pacific Redwood Medical Group Inc58 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811504533 |
| 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