Charles Cheng-Wen Lin, MD
Internal Medicine Physician · San Gabriel, CA
Charles Cheng-Wen Lin, MD is an internal medicine physician with a practice address in San Gabriel, California, and NPI 1982719225, issued on Aug 19, 2006. Check the license (California A34628, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Cheng-Wen Lin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A34628 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1034 S San Gabriel Blvd, San Gabriel, CA 91776
- Phone
- (625) 287-8222
- Enumerated
- Aug 19, 2006
- Record last updated
- Jul 3, 2023
- Fax
- (626) 287-4863
- Medicare enrollment
- Enrolled (PECOS I20040317000442); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Charles Cheng-Wen Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A34628Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,707 Medicare Part D claims for 252 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 12 claims were for opioids.
Most prescribed
- Losartan Potassium245 claims
- Amlodipine Besylate236 claims
- Atorvastatin Calcium221 claims
- Metformin Hcl121 claims
- Amoxicillin-Clavulanate Potass74 claims
- Famotidine68 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.
Industry payments in 2024: $1,160.80
26 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Charles Cheng-Wen Lin among 17,696 internal medicine physician records in California
Charles Cheng-Wen 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 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
- Graduated1972 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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).
24 internal medicine physician records list a practice address in San Gabriel
They are 24 of the 762 NPPES records with a practice address in San Gabriel, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Gabriel → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kenneth Chan, M.D.San Gabriel, CA 917761861422370
- Michelle Chan, M.D.San Gabriel, CA 917761043326283
- Araceli Chanbonpin, M.D.San Gabriel, CA 917761962572909
- Jennifer Chen, MDSan Gabriel, CA 917761548335516
- Le-Young Lee, MDSan Gabriel, CA 917761861417586
- Su Lee, M.D.San Gabriel, CA 917761871510370
- Garry Pratt, MDSan Gabriel, CA 917761679592281
- Etema Shilyansky, M.D.San Gabriel, CA 917761740375088
Common questions
What is Charles Cheng-Wen Lin, MD's NPI number?
Charles Cheng-Wen Lin, MD's National Provider Identifier (NPI) is 1982719225, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles Cheng-Wen Lin, MD located?
The NPPES record lists a practice address at 1034 S San Gabriel Blvd, San Gabriel, CA, 91776. Phone: (625) 287-8222. Providers update this record themselves, so call before visiting.
How can I verify Charles Cheng-Wen Lin, MD's license?
NPPES lists California license number A34628, 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 Charles Cheng-Wen Lin, MD prescribe under Medicare Part D?
In 2024, Charles Cheng-Wen Lin, MD had 2,707 Medicare Part D claims for 252 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.