Mark Lin, MD
Internal Medicine Physician · Bakersfield, CA
Mark Lin, MD is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1528050754, issued on Aug 15, 2005. Check the license (California A75404, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Lin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A75404 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4580 California Ave, Bakersfield, CA 93309
- Phone
- (661) 327-4411
- Enumerated
- Aug 15, 2005
- Record last updated
- Jul 13, 2026
- 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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- Jason Barca, PHARMDAmbulatory Care Pharmacist1558838078
- Rodney Beaty, PA-CPhysician Assistant1497747596
- Suzanne Bryan, PA-CPhysician Assistant1780686139
- Jeffrey Chen, D.O.Internal Medicine Physician1952749186
Verify Mark Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A75404Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,141 Medicare Part D claims for 528 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 133 claims were for opioids.
Most prescribed
- Cefuroxime151 claims
- Hydrocodone-Acetaminophen70 claims
- Atorvastatin Calcium67 claims
- Oxycodone-Acetaminophen57 claims
- Amlodipine Besylate52 claims
- Pantoprazole Sodium49 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.
Mark Lin among 17,696 internal medicine physician records in California
Mark Lin, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 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
- David Nilsson, PA CBakersfield, CA 933091841227162
Common questions
What is Mark Lin, MD's NPI number?
Mark Lin, MD's National Provider Identifier (NPI) is 1528050754, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lin, MD 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 Mark Lin, MD's license?
NPPES lists California license number A75404, 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 Mark Lin, MD prescribe under Medicare Part D?
In 2024, Mark Lin, MD had 1,141 Medicare Part D claims for 528 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.