NPPES file of Aug 9, 2026

Than S. Lin, D.O

Internal Medicine Physician · Monterey Park, CA

Than S. Lin, D.O is an internal medicine physician with a practice address in Monterey Park, California, and NPI 1851524383, issued on Sep 1, 2009. Check the license (California 20A10925, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851524383
Name
Than S. Lin
Credential
D.O
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A10925 CA
Self-reported in NPPES; status is on the state search
Practice location
120 E Emerson Ave, Monterey Park, CA 91755
Phone
(626) 280-0676
Enumerated
Sep 1, 2009
Record last updated
May 22, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20131210001878); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 120 E Emerson Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chi Hang Cheang, N.P.Acute Care Nurse Practitioner1609200146
  2. Hsin-Hui Hwu, M.D.Pediatrics Physician1871675736
  3. Jim-Jer Hwu, MDNephrology Physician1275634248
  4. Ann Bernice Villena, FNP-BCNurse Practitioner1053039529

Verify Than S. Lin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10925
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

42% more Medicare Part D claims than the average internal medicine physician in 2024

4,496 Medicare Part D claims for 536 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims. 17 claims were for opioids.

  1. Than Lin4,496
  2. Specialty average3,176

Most prescribed

  1. Losartan Potassium292 claims
  2. Allopurinol284 claims
  3. Farxiga174 claims
  4. Procrit160 claims
  5. Amlodipine Besylate155 claims
  6. Furosemide150 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: $306.91

4 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. 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.

  1. Than Lin$306.91
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Golden Pacific Nephrology Medical Clinic IncMonterey Park, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Than S. Lin among 17,696 internal medicine physician records in California

Than S. Lin, 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 2009, is newer than 60% of them.

  • NPI issued2009 · 60% of these records are older, 37% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2008 · median 2004 among the 11,065 with a school on file
  • Record last updated2018 · 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).

33 internal medicine physician records list a practice address in Monterey Park

They are 33 of the 948 NPPES records with a practice address in Monterey Park, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Michael Choi, M.D.Monterey Park, CA 917551255405635
  2. Jorge Weingarten, MDMonterey Park, CA 917551174966618
  3. Htoo Htoo Aung, MDMonterey Park, CA 917541942615075
  4. Randall Chan, MDMonterey Park, CA 917541265969273
  5. Eric CuiMonterey Park, CA 917541003342395
  6. Tom Giang, M.D.Monterey Park, CA 917541669668901
  7. Shasha Jiang, MDMonterey Park, CA 917541528599784
  8. Alexander Pi, D.O.Monterey Park, CA 917541881993202

Common questions

What is Than S. Lin, D.O's NPI number?

Than S. Lin, D.O's National Provider Identifier (NPI) is 1851524383, issued on Sep 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Than S. Lin, D.O located?

The NPPES record lists a practice address at 120 E Emerson Ave, Monterey Park, CA, 91755. Phone: (626) 280-0676. Providers update this record themselves, so call before visiting.

How can I verify Than S. Lin, D.O's license?

NPPES lists California license number 20A10925, 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 Than S. Lin, D.O prescribe under Medicare Part D?

In 2024, Than S. Lin, D.O had 4,496 Medicare Part D claims for 536 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.