Quick answers
- Which hospitals does Joan L. Walker work at?
- Medicare's official clinician data lists Joan L. Walker at 1 hospital: O U Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joan L. Walker see patients?
- Medicare's clinician data lists 1 practice location in Oklahoma City, OK. Call before your visit to confirm the address.
- What is Joan L. Walker's specialty?
- Medicare lists Gynecological Oncology as the primary specialty, and also Obstetrics/Gynecology.
- Does Joan L. Walker accept Medicare assignment?
- Yes. Medicare's clinician data says Joan L. Walker 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 Joan L. Walker's NPI number?
- 1477521839. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joan L. Walker works
Medicare's Facility Affiliation Data lists Joan L. Walker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- O U Medical CenterOklahoma City, OK · Acute Care Hospital · CCN 370093
Practice locations
Addresses where Joan L. Walker is enrolled with Medicare (CMS data updated 2026-10-02).
- 800 NE 10th St, Okcc 2100Oklahoma City, OK 73104
Specialties
- Gynecological Oncologyprimary
- Obstetrics/Gynecologyalso
Other gynecologic oncologists in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477521839 |
| 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