Won I. Choi, MD
Psychiatry Physician · Anaheim, CA
Won I. Choi, MD is a psychiatry physician with a practice address in Anaheim, California, and NPI 1689683872, issued on Aug 5, 2006. Check the license (California A31280, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Won I. Choi
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A31280 CA
Self-reported in NPPES; status is on the state search - Practice location
- 645 S Beach Blvd, Anaheim, CA 92804
- Phone
- (714) 821-1993
- Enumerated
- Aug 5, 2006
- Record last updated
- Feb 15, 2024
- Medicaid ID
- 519026 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Won I. Choi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A31280Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average psychiatry physician in 2024
864 Medicare Part D claims for 29 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Benztropine Mesylate50 claims
- Aripiprazole45 claims
- Clozapine44 claims
- Olanzapine Odt41 claims
- Clonazepam38 claims
- Atorvastatin Calcium36 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Won I. Choi among 8,673 psychiatry physician records in California
Won I. Choi, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Anaheim → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Dorothy Savarirayan, M.DAnaheim, CA 928041457409682
- Hailong Vu, M.D.Anaheim, CA 928041578862256
- Jamie Fortman, MDAnaheim, CA 928051801415070
- Onsi Habeeb El-Zayat, M.D.Anaheim, CA 928051033205554
- Peter Hung, MDAnaheim, CA 928051093027724
- Steven Johnson, M.D.Anaheim, CA 928051730117516
- Pravin Kansagra Md, M.D.Anaheim, CA 928051205861614
- Chung-Lim Kim, M.D.Anaheim, CA 928051033361720
Common questions
What is Won I. Choi, MD's NPI number?
Won I. Choi, MD's National Provider Identifier (NPI) is 1689683872, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Won I. Choi, MD located?
The NPPES record lists a practice address at 645 S Beach Blvd, Anaheim, CA, 92804. Phone: (714) 821-1993. Providers update this record themselves, so call before visiting.
How can I verify Won I. Choi, MD's license?
NPPES lists California license number A31280, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Won I. Choi, MD prescribe under Medicare Part D?
In 2024, Won I. Choi, MD had 864 Medicare Part D claims for 29 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.