Quick answers
- Which hospitals does Obinna C. Oko work at?
- Medicare's official clinician data lists Obinna C. Oko at 2 hospitals: California Pacific Medical Ctr-Davies Campus Hosp and Sutter Delta Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Obinna C. Oko see patients?
- Medicare's clinician data lists 3 practice locations, including Fremont, CA, Brentwood, CA and Antioch, CA. Call before your visit to confirm the address.
- What is Obinna C. Oko's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Obinna C. Oko accept Medicare assignment?
- Yes. Medicare's clinician data says Obinna C. Oko 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 Obinna C. Oko?
- (510) 490-1222, as listed in official Medicare / NPI Registry data.
- What is Obinna C. Oko's NPI number?
- 1073019089. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Obinna C. Oko works
Medicare's Facility Affiliation Data lists Obinna C. Oko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA · Acute Care Hospital · CCN 050008
- Sutter Delta Medical CenterAntioch, CA · Acute Care Hospital · CCN 050523
Practice locations
Addresses where Obinna C. Oko is enrolled with Medicare (CMS data updated 2026-10-02).
- 3200 Kearney StFremont, CA 94538 (510) 490‑1222
- 350 John Muir PkwyBrentwood, CA 94513
- 3901 Lone Tree WayAntioch, CA 94509
Group practices
Medicare enrollment lists Obinna C. Oko as a member of this group (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Fremont
Clinicians with the same Medicare primary specialty in Fremont, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In New Orleans |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073019089 |
| 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