Jeffrey Chen, D.O.
Internal Medicine Physician · Bakersfield, CA
Jeffrey Chen, D.O. is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1952749186, issued on Jun 10, 2013. Check the license (California 20A14692, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Chen
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A14692 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4580 California Ave, Bakersfield, CA 93309
- Phone
- (661) 327-4411
- Enumerated
- Jun 10, 2013
- Record last updated
- Jul 21, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4580 California Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rodney Beaty, PA-CPhysician Assistant1497747596
- Suzanne Bryan, PA-CPhysician Assistant1780686139
- Maung Chit Khaing, MDInternal Medicine Physician1821148628
Verify Jeffrey Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14692Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average internal medicine physician in 2024
472 Medicare Part D claims for 192 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Cefuroxime72 claims
- Pantoprazole Sodium24 claims
- Atorvastatin Calcium20 claims
- Azithromycin19 claims
- Furosemide17 claims
- Clopidogrel16 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.
Jeffrey Chen among 17,696 internal medicine physician records in California
Jeffrey Chen, D.O. 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 fileNo · 63% of these records are
- Record last updated2022 · 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
- Carlos Alvarez, MDBakersfield, CA 933091891805610
- Kusum Desai, MDBakersfield, CA 933091962444570
- Russell Enoch, D.O.Bakersfield, CA 933091811009525
- Thin Han, M.D.Bakersfield, CA 933091356319826
- Joseph Hayes, D.O.Bakersfield, CA 933091083681498
- Rusong Huang, MDBakersfield, CA 933091598767949
- Ju Hwan Lee, MDBakersfield, CA 933091619969847
- Mark Lin, MDBakersfield, CA 933091528050754
Common questions
What is Jeffrey Chen, D.O.'s NPI number?
Jeffrey Chen, D.O.'s National Provider Identifier (NPI) is 1952749186, issued on Jun 10, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Chen, D.O. located?
The NPPES record lists a practice address at 4580 California Ave, Bakersfield, CA, 93309. Phone: (661) 327-4411. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Chen, D.O.'s license?
NPPES lists California license number 20A14692, 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 Jeffrey Chen, D.O. prescribe under Medicare Part D?
In 2024, Jeffrey Chen, D.O. had 472 Medicare Part D claims for 192 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.