Ok S Ji, DO - Medicare Psychiatry & Neurology in Irvine, CA

  1. Home
  2. Psychiatry & Neurology
  3. CA
  4. Irvine
Ok S Ji, DO is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Irvine, California. His current practice location is 3 Corporate Park Ste 170, Irvine, California. You can reach out to his office (for appointments etc.) via phone at (855) 427-2778.

Ok S Ji is licensed to practice in California (license number 20A20531) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1760943187.

Contact Information

Ok S Ji, DO
3 Corporate Park Ste 170,
Irvine, CA 92606-5162
(855) 427-2778
(949) 900-2175

Map and Direction




Physician's Profile

Full NameOk S Ji
GenderMale
SpecialityPsychiatry & Neurology - Psychiatry
Location3 Corporate Park Ste 170, Irvine, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1760943187
  • Provider Enumeration Date: 03/28/2019
  • Last Update Date: 06/08/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4981938768
  • Enrollment ID: I20230619001440

Medical Identifiers

Medical identifiers for Ok S Ji such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1760943187NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 34.015634 (Ohio)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
390200000XStudent In An Organized Health Care Education/training Program 34.015634 (Ohio)Secondary
2084P0800XPsychiatry & Neurology - Psychiatry 20A20531 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Ok S Ji allows following entities to bill medicare on his behalf.
Entity NameMahajan Therapeutics, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669531810
PECOS PAC ID: 8820236524
Enrollment ID: O20160809001647

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Ok S Ji is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Ok S Ji, DO
3835 N Freeway Blvd Ste 100,
Sacramento, CA 95834-1954

Ph: (916) 576-7900		Ok S Ji, DO
3 Corporate Park Ste 170,
Irvine, CA 92606-5162

Ph: (855) 427-2778

Reviews and Comments


Psychiatry & Neurology Doctors in Irvine, CA

Dr. Kort Christopher Ulicny, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 139 Tenor, Irvine, CA 92618
Phone: 949-339-7299    Fax: 949-946-6763
Amy Blood,
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 19712 Macarthur Blvd Ste 110, Irvine, CA 92612
Phone: 949-773-9207    Fax: 618-202-2024
Dr. Amelia Angela Russo-neustadt, M.D., PH.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 101 Pacifica, Suite 160, Irvine, CA 92618
Phone: 949-453-8805    
Dr. Ravindra R Chand, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 22 Odyssey Suite 240, Pacific Neuropsychiatry And Sleep, Irvine, CA 92618
Phone: 949-207-3797    Fax: 949-207-3799
Tuong Nguyen, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 5 Flora Spgs, Irvine, CA 92602
Phone: 714-935-6363    Fax: 714-935-8112
Harold Louis Boerlin Iii, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 15615 Alton Pkwy, Suite 220, Irvine, CA 92618
Phone: 949-753-1143    Fax: 949-249-6601
Emily Mills Johnson, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 6 Venture, Ste 350, Irvine, CA 92618
Phone: 949-753-8800    Fax: 949-753-8899

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.