Ji Hyung Yoo, M.D.
Psychiatry Physician · Vista, CA
Ji Hyung Yoo, M.D. is a psychiatry physician with a practice address in Vista, California, and NPI 1942284666, issued on Dec 6, 2005. Check the license (California C53382, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ji Hyung Yoo
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- C53382 CA
Self-reported in NPPES; status is on the state search - Practice location
- 780 Shadowridge Dr, Vista, CA 92083
- Phone
- (877) 496-0450
- Enumerated
- Dec 6, 2005
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090212000089); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 780 Shadowridge Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heather Arrington, M.A.Marriage & Family Therapist1033492194
- Kathleen Baniwas, LMFTClinical Social Worker1710339650
- Elizabeth Bauer, RN,MSHMental Health Counselor1598962292
- Michele Buland, LCSWClinical Social Worker1053752568
- Henry Joseph Cordova, LCSWClinical Social Worker1720721939
- Amber Eckert, MSC/MFTMarriage & Family Therapist1366860561
Verify Ji Hyung Yoo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C53382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.0 times the Medicare Part D claims of the average psychiatry physician in 2024
5,009 Medicare Part D claims for 855 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Alprazolam522 claims
- Trazodone Hcl313 claims
- Clonazepam307 claims
- Lorazepam307 claims
- Quetiapine Fumarate259 claims
- Fluoxetine Hcl229 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ji Hyung Yoo among 8,673 psychiatry physician records in California
Ji Hyung Yoo, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1998 · median 2005 among the 3,295 with a school on file
- Record last updated2021 · 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 Vista → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Brenda Erickson, MDVista, CA 920831275863854
- Martina Klein, M.D.Vista, CA 920831366468548
- Leena Kurre, DOVista, CA 920831205452398
- Larissa Lacorte, MDVista, CA 920831538365309
- Marie Lyster, M.D.Vista, CA 920831750417564
- Richard Oliva, M.D.Vista, CA 920831952599938
- Bianca Patel, M.D.Vista, CA 920831316494677
- Paula Proffitt, MDVista, CA 920831063580587
Common questions
What is Ji Hyung Yoo, M.D.'s NPI number?
Ji Hyung Yoo, M.D.'s National Provider Identifier (NPI) is 1942284666, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ji Hyung Yoo, M.D. located?
The NPPES record lists a practice address at 780 Shadowridge Dr, Vista, CA, 92083. Phone: (877) 496-0450. Providers update this record themselves, so call before visiting.
How can I verify Ji Hyung Yoo, M.D.'s license?
NPPES lists California license number C53382, 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 Ji Hyung Yoo, M.D. prescribe under Medicare Part D?
In 2024, Ji Hyung Yoo, M.D. had 5,009 Medicare Part D claims for 855 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.