Kevin Chen, M.D.
Internal Medicine Physician · Oakland, CA
Kevin Chen, M.D. is an internal medicine physician with a practice address in Oakland, California, and NPI 1235300658, issued on Mar 13, 2008. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kevin Chen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036119665 IL
Self-reported in NPPES; status is on the state search - Practice location
- 424 28TH St, Oakland, CA 94609
- Phone
- (510) 452-4824
- Enumerated
- Mar 13, 2008
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090309000226); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 424 28TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Peerenboom, D.O.Internal Medicine Physician1528385002
- Anthony Ravnik, M.D.Internal Medicine Physician1649388059
- James Saunders, M.D.Specialist1841308269
- Hiroshi Terashima, M.D.Internal Medicine Physician1508974924
Verify Kevin Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average internal medicine physician in 2024
9,142 Medicare Part D claims for 916 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 289 claims were for opioids.
Most prescribed
- Atorvastatin Calcium721 claims
- Amlodipine Besylate441 claims
- Lisinopril364 claims
- Losartan Potassium330 claims
- Levothyroxine Sodium307 claims
- Simvastatin250 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 one group practice
- Permanente Medical Group IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kevin Chen among 17,696 internal medicine physician records in California
Kevin 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
432 internal medicine physician records list a practice address in Oakland
They are 432 of the 18,558 NPPES records with a practice address in Oakland, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oakland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rachel Callaghan, M.D.Oakland, CA 946091548239627
- Samuel Dong, MDOakland, CA 946091528027471
- Amy Garlin, M.D.Oakland, CA 946091346269719
- Marci Gottlieb, MDOakland, CA 946091194785428
- Christopher Hall, M.D.Oakland, CA 946091295754729
- John Jones, MDOakland, CA 946091639139967
- Michael Kim, MDOakland, CA 946091477513703
- Pandora Lee, M.D.Oakland, CA 946091598725327
Common questions
What is Kevin Chen, M.D.'s NPI number?
Kevin Chen, M.D.'s National Provider Identifier (NPI) is 1235300658, issued on Mar 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Kevin Chen, M.D. located?
The NPPES record lists a practice address at 424 28TH St, Oakland, CA, 94609. Phone: (510) 452-4824. Providers update this record themselves, so call before visiting.
How can I verify Kevin Chen, M.D.'s license?
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 Kevin Chen, M.D. prescribe under Medicare Part D?
In 2024, Kevin Chen, M.D. had 9,142 Medicare Part D claims for 916 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.