Simon Chan, DO
Psychiatry Physician · Stockton, CA
Simon Chan, DO is a psychiatry physician with a practice address in Stockton, California, and NPI 1528828506, issued on Mar 19, 2024. Check the license (California 1528828506, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Simon Chan
- Credential
- DO
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 1528828506 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1800 N California St, Stockton, CA 95204
- Phone
- (209) 547-5716
- Enumerated
- Mar 19, 2024
- Record last updated
- Apr 24, 2025
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1800 N California St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Najiba Afzal, MDStudent in an Organized Health Care Education/Training Program1033978572
- Khaja AhmedPharmacist1982241709
- Nabeel Ahmed, MDStudent in an Organized Health Care Education/Training Program1083552780
- Savannah AibayeStudent in an Organized Health Care Education/Training Program1619508553
Verify Simon Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 1528828506Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average psychiatry physician in 2024
25 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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.
Simon Chan among 8,673 psychiatry physician records in California
Simon Chan, DO 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 2024, is newer than 98% of them.
- NPI issued2024 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2025 · 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 Stockton → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Iyad Alkhouri, MDStockton, CA 952041952328940
- Alexander Baradei, MDStockton, CA 952041053935775
- Stephanie Dong, M.D.Stockton, CA 952041104369198
- Paramjit Gill, M.D.Stockton, CA 952041073629218
- Sanjiv Gowda, DOStockton, CA 952041326620782
- Kim-Long Hua-RuppStockton, CA 952041104566736
- Rihan Javid, D.O.Stockton, CA 952041275929895
- Camille Olechowski, MD PHDStockton, CA 952041568085751
Common questions
What is Simon Chan, DO's NPI number?
Simon Chan, DO's National Provider Identifier (NPI) is 1528828506, issued on Mar 19, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Simon Chan, DO located?
The NPPES record lists a practice address at 1800 N California St, Stockton, CA, 95204. Phone: (209) 547-5716. Providers update this record themselves, so call before visiting.
How can I verify Simon Chan, DO's license?
NPPES lists California license number 1528828506, 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 Simon Chan, DO prescribe under Medicare Part D?
In 2024, Simon Chan, DO had 25 Medicare Part D claims for 11 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.