NPPES file of Aug 9, 2026

Jiayi Joy Lin, MD

Hospitalist Physician · Anaheim, CA

Jiayi Joy Lin, MD is a hospitalist physician with a practice address in Anaheim, California, and NPI 1609525351, issued on Mar 21, 2022. Check the license (California A188921, 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
1609525351
Name
Jiayi Joy Lin
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A188921 CA
Self-reported in NPPES; status is on the state search
Practice location
3440 E LA Palma Ave, Anaheim, CA 92806
Phone
(833) 574-2273
Enumerated
Mar 21, 2022
Record last updated
Jul 10, 2025
Medicare enrollment
Enrolled (PECOS I20251030001431); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2022
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.
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Also registered at 3440 E LA Palma Ave

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

  1. Maria Abrantes, MDNeonatal-Perinatal Medicine Physician1861438889
  2. David Alvarez, MDDiagnostic Radiology Physician1255448924
  3. Marithel Arambulo, MSN RNC-OB PHNRegistered Nurse1174329551
  4. Salli AzizHospitalist Physician1841720604
  5. Ricardo Bardales MendozaInternal Medicine Physician1801103130
  6. Sharrise Boop, MSWSocial Worker1134643489

Verify Jiayi Joy 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 A188921
    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.

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40% fewer Medicare Part D claims than the average hospitalist physician in 2024

314 Medicare Part D claims for 55 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Jiayi Lin314
  2. Specialty average521

Most prescribed

  1. Atorvastatin Calcium32 claims
  2. Losartan Potassium21 claims
  3. Amlodipine Besylate18 claims
  4. Jardiance16 claims
  5. Metformin Hcl11 claims
  6. Metoprolol Succinate11 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

  1. Southern California Permanente Medical GroupAnaheim, CA

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

Jiayi Joy Lin among 3,099 hospitalist physician records in California

Jiayi Joy Lin, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.

  • NPI issued2022 · 94% of these records are older, 2% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2022 · median 2010 among the 2,505 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Salli AzizAnaheim, CA 928061841720604
  2. Janie Chen, M.D.Anaheim, CA 928061184693681
  3. Matthew Hanchett, M.D.Anaheim, CA 928061346405644
  4. Chloe Lee, DOAnaheim, CA 928061649632308
  5. Ann Marie Paragas, MDAnaheim, CA 928061437585890
  6. Esther Yu, M.D.Anaheim, CA 928071891818928
  7. Benjamin Chou, M.D.Anaheim, CA 928041487001590
  8. Shaiquel Jilani, M.D.Anaheim, CA 928041306139035

Common questions

What is Jiayi Joy Lin, MD's NPI number?

Jiayi Joy Lin, MD's National Provider Identifier (NPI) is 1609525351, issued on Mar 21, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Jiayi Joy Lin, MD located?

The NPPES record lists a practice address at 3440 E LA Palma Ave, Anaheim, CA, 92806. Phone: (833) 574-2273. Providers update this record themselves, so call before visiting.

How can I verify Jiayi Joy Lin, MD's license?

NPPES lists California license number A188921, 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 Jiayi Joy Lin, MD prescribe under Medicare Part D?

In 2024, Jiayi Joy Lin, MD had 314 Medicare Part D claims for 55 beneficiaries; the average among hospitalist physician prescribers was 521. 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.