Chuenfu Lin
Internal Medicine Physician · Sacramento, CA
Chuenfu Lin is an internal medicine physician with a practice address in Sacramento, California, and NPI 1043328818, issued on Aug 29, 2006. Check the license (California A108935, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chuenfu Lin
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A108935 CA
63866 AZ
DR.0054209 CO
80497 CT
62090 MN
and 3 more
Self-reported in NPPES; status is on the state search - Practice location
- 4150 V St Ste 3400, Sacramento, CA 95817
- Phone
- (916) 734-7587
- Enumerated
- Aug 29, 2006
- Record last updated
- Jun 4, 2026
- Medicare enrollment
- Enrolled (PECOS I20240809003244); 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 4150 V St Ste 3400
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Chuenfu Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A108935Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
213 Medicare Part D claims for 80 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass16 claims
- Cefpodoxime Proxetil14 claims
- Prednisone12 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 3 group practices
- Comprehensive Hospitalist Services OF Arizona LLCMesa, AZ
- Galen Inpatient Physicians PCHartford, CT
- New York Medical Physician Associates PCUtica, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chuenfu Lin among 17,696 internal medicine physician records in California
Chuenfu Lin 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 11,065 with a school on file
- 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).
601 internal medicine physician records list a practice address in Sacramento
They are 601 of the 33,083 NPPES records with a practice address in Sacramento, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sacramento → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Jason Ferries, M.D.Sacramento, CA 958171609859974
- Steven Griffen, M.D.Sacramento, CA 958171053393835
- Diane Haddock, M.D.Sacramento, CA 958171013991553
- Calvin Hirsch, MDSacramento, CA 958171073597332
- Hershan Johl, MDSacramento, CA 958171255314399
Common questions
What is Chuenfu Lin's NPI number?
Chuenfu Lin's National Provider Identifier (NPI) is 1043328818, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chuenfu Lin located?
The NPPES record lists a practice address at 4150 V St Ste 3400, Sacramento, CA, 95817. Phone: (916) 734-7587. Providers update this record themselves, so call before visiting.
How can I verify Chuenfu Lin's license?
NPPES lists California license number A108935, 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 Chuenfu Lin prescribe under Medicare Part D?
In 2024, Chuenfu Lin had 213 Medicare Part D claims for 80 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.