Ok S Ji, D.O.
Psychiatry · Irvine, CA
At a glance
3 Corporate Park Ste 170, Irvine, CA 92606-5162
NPPES record updated Jun 8, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
3 Corporate Park Ste 170Irvine, CA 92606-5162
Additional reported practice locations
2555 University Dr Ste 100Fairborn, OH 453246255
Phone: 9377757792 257 Hopeland St
Dayton, OH 454173420
Phone: 1440285356 627 S. Edwin C. Moses Blvd
East Medical Plaza, 1St Floor
Dayton, OH 45417
Phone: 9372238840 · Ext. 124
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2019
- CMS specialties
- Psychiatry
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Psychiatry
- Taxonomy code
- 2084P0800X
- Enumeration date
- Mar 28, 2019
- Record updated
- Jun 8, 2023
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- D.O.
Reported taxonomies and licenses
2084P0800X
License reported: 34.015634 OH
390200000X
390200000X
License reported: 34.015634 OH
2084P0800X · Primary
License reported: 20A20531 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
3 Corporate Park Ste 170Irvine, CA 92606-5162
- Phone
- (855) 427-2778
- Fax
- (949) 900-2175
Mailing address
3835 N FREEWAY BLVD STE 100SACRAMENTO, CA 958341954
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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