Si Chen, M.D.
Internal Medicine Physician · Bakersfield, CA
Si Chen, M.D. is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1467794180, issued on Mar 20, 2013. Check the license (California A138141, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Si Chen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A138141 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 Mount Vernon Ave, Bakersfield, CA 93306
- Phone
- (661) 326-2000
- Enumerated
- Mar 20, 2013
- Record last updated
- Aug 13, 2025
- Medicare enrollment
- Enrolled (PECOS I20160422000700); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1700 Mount Vernon Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pernian AbadiPrimary Care Nurse Practitioner1801760814
- Mariam AbdelmissehInternal Medicine Physician1902250574
- Arian AbdiStudent in an Organized Health Care Education/Training Program1306538087
- Ayham Aboeed, M.D.Critical Care Medicine (Internal Medicine) Physician1093969750
- Jesslin Abraham, MDStudent in an Organized Health Care Education/Training Program1497333751
- Quinn Adams, MDStudent in an Organized Health Care Education/Training Program1790627537
Verify Si Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A138141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
356 Medicare Part D claims for 115 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Amlodipine Besylate16 claims
- Pantoprazole Sodium15 claims
- Hydrocodone-Acetaminophen14 claims
- Vancomycin Hcl14 claims
- Atorvastatin Calcium12 claims
- Cefdinir11 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 4 group practices
- Advantage Hospitalists IncThousand Oaks, CA
- American Current Care OF California A Medical CorporationTorrance, CA
- Cottage Medical FoundationGoleta, CA
- Galen Inpatient Physicians PCGlendale, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Si Chen among 17,696 internal medicine physician records in California
Si Chen, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
214 internal medicine physician records list a practice address in Bakersfield
They are 214 of the 11,539 NPPES records with a practice address in Bakersfield, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Bakersfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mariam AbdelmissehBakersfield, CA 933061902250574
- David Aguirre, M.D.Bakersfield, CA 933061538401013
- Ararat Avetisyan, M.D.Bakersfield, CA 933061649680471
- Bahareh Ghafarizadeh, M.DBakersfield, CA 933061548503683
- Mohamed Hammami, MDBakersfield, CA 933061285049726
- Royce Johnson, MDBakersfield, CA 933061336174655
- Jerome Lazaga, M.D.Bakersfield, CA 933061639417181
- Louis Lurie, M.D.Bakersfield, CA 933061275875312
Common questions
What is Si Chen, M.D.'s NPI number?
Si Chen, M.D.'s National Provider Identifier (NPI) is 1467794180, issued on Mar 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Si Chen, M.D. located?
The NPPES record lists a practice address at 1700 Mount Vernon Ave, Bakersfield, CA, 93306. Phone: (661) 326-2000. Providers update this record themselves, so call before visiting.
How can I verify Si Chen, M.D.'s license?
NPPES lists California license number A138141, 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 Si Chen, M.D. prescribe under Medicare Part D?
In 2024, Si Chen, M.D. had 356 Medicare Part D claims for 115 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.