Paul S. Chung, M.D.
Psychiatry Physician · Fullerton, CA
Paul S. Chung, M.D. is a psychiatry physician with a practice address in Fullerton, California, and NPI 1780647347, issued on Apr 6, 2006. Check the license (California A92851, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul S. Chung
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A92851 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1619 E Chapman Ave, Fullerton, CA 92831
- Phone
- (213) 309-4671
- Enumerated
- Apr 6, 2006
- Record last updated
- Jan 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1619 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nan Alvarez-GrayMarriage & Family Therapist1740555796
- Michelle Craig, LMFTMarriage & Family Therapist1235647959
- Marissa Enriquez, MSW, LCSW, PPSCClinical Social Worker1619093614
- Sabrina Ferris, PSY.D.Clinical Psychologist1639459175
- Laurel Hamilton, MAMarriage & Family Therapist1326299728
- Connie Kingsland, LMFTMarriage & Family Therapist1750637658
Verify Paul S. Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A92851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average psychiatry physician in 2024
220 Medicare Part D claims for 14 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Zolpidem Tartrate36 claims
- Bupropion Xl25 claims
- Lorazepam22 claims
- Trazodone Hcl21 claims
- Naltrexone Hcl15 claims
- Clonazepam13 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.
Paul S. Chung among 8,673 psychiatry physician records in California
Paul S. Chung, 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 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 updated2016 · 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 Fullerton → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Racha ChamlatiFullerton, CA 928311215599337
- Joe Chiu, MDFullerton, CA 928311730193129
- Deepti GhiyaFullerton, CA 928311730422189
- Dawn HurFullerton, CA 928311902433576
- Justine Petrie, MDFullerton, CA 928311730264912
- Sandhya Gudapati, M.D.Fullerton, CA 928321962625384
- Parool Patel, MDFullerton, CA 928321740489764
- John AlvarezFullerton, CA 928351912361106
Common questions
What is Paul S. Chung, M.D.'s NPI number?
Paul S. Chung, M.D.'s National Provider Identifier (NPI) is 1780647347, issued on Apr 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Paul S. Chung, M.D. located?
The NPPES record lists a practice address at 1619 E Chapman Ave, Fullerton, CA, 92831. Phone: (213) 309-4671. Providers update this record themselves, so call before visiting.
How can I verify Paul S. Chung, M.D.'s license?
NPPES lists California license number A92851, 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 Paul S. Chung, M.D. prescribe under Medicare Part D?
In 2024, Paul S. Chung, M.D. had 220 Medicare Part D claims for 14 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.