Roger A. Siouffey, MD
Psychiatry Physician · Stockton, CA
Roger A. Siouffey, MD is a psychiatry physician with a practice address in Stockton, California, and NPI 1497833396, issued on Nov 1, 2006. Check the license (California C43113, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roger A. Siouffey
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- C43113 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7373 West LN, Stockton, CA 95210
- Phone
- (209) 476-2000
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00C431130 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 7373 West LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Roger A. Siouffey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C43113Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average psychiatry physician in 2024
637 Medicare Part D claims for 206 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Trazodone Hcl89 claims
- Fluoxetine Hcl75 claims
- Sertraline Hcl55 claims
- Alprazolam53 claims
- Buspirone Hcl49 claims
- Duloxetine Hcl30 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.
Roger A. Siouffey among 8,673 psychiatry physician records in California
Roger A. Siouffey, 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 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 Stockton → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Rama Balaji, M.D.Stockton, CA 952101205994936
- Kimberly Larsen, MDStockton, CA 952101134207947
- Jill Ludin, MDStockton, CA 952101699120147
- Luis Montes De Oca, DOStockton, CA 952101013477181
- Alice Park, MDStockton, CA 952101891795076
- Yuvraj Singh, M.DStockton, CA 952101134708084
- Bakshander Kaur, MDStockton, CA 952091477041192
- Kim-Oanh Ly, M.D.Stockton, CA 952091962627349
Common questions
What is Roger A. Siouffey, MD's NPI number?
Roger A. Siouffey, MD's National Provider Identifier (NPI) is 1497833396, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roger A. Siouffey, MD located?
The NPPES record lists a practice address at 7373 West LN, Stockton, CA, 95210. Phone: (209) 476-2000. Providers update this record themselves, so call before visiting.
How can I verify Roger A. Siouffey, MD's license?
NPPES lists California license number C43113, 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 Roger A. Siouffey, MD prescribe under Medicare Part D?
In 2024, Roger A. Siouffey, MD had 637 Medicare Part D claims for 206 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.