Quick answers
- Where does Phillip Y. Oka see patients?
- Medicare's clinician data lists 2 practice locations, including Orange, CA and Costa Mesa, CA. Call before your visit to confirm the address.
- What is Phillip Y. Oka's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Phillip Y. Oka accept Medicare assignment?
- Yes. Medicare's clinician data says Phillip Y. Oka 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.
- Does Phillip Y. Oka offer telehealth?
- Medicare's clinician data says Phillip Y. Oka offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Phillip Y. Oka?
- (714) 545-5550, as listed in official Medicare / NPI Registry data.
- What is Phillip Y. Oka's NPI number?
- 1114813029. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Phillip Y. Oka is enrolled with Medicare (CMS data updated 2026-10-02).
- 302 W La Veta Ave, Suite 202Orange, CA 92866
- 3151 Airway Ave, Suite G1Costa Mesa, CA 92626 (714) 545‑5550
Group practices
Medicare enrollment lists Phillip Y. Oka as a member of this group (CMS data updated 2026-10-02).
- Pacific Neuropsychiatric Specialists Inc72 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Orange
Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1114813029 |
| 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
- 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