NPPES file of Aug 9, 2026

Harold Lin, MD

Hospitalist Physician · Oakland, CA

Harold Lin, MD is a hospitalist physician with a practice address in Oakland, California, and NPI 1063590636, issued on Nov 1, 2006. Check the license (California A82553, 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
1063590636
Name
Harold Lin
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A82553 CA
Self-reported in NPPES; status is on the state search
Practice location
1800 Harrison St FL 7, Oakland, CA 94612
Phone
(510) 625-6262
Enumerated
Nov 1, 2006
Record last updated
Jan 10, 2022
Medicare enrollment
Enrolled (PECOS I20040109000551); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1800 Harrison St FL 7

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

  1. Christopher Cox, M.D.Orthopaedic Hand Surgery Physician1013104215
  2. Francis Crosson, M.D.Pediatric Infectious Diseases Physician1629205679
  3. Tamar Edwards, PA-CPhysician Assistant1437782554
  4. Sydney Ferris Williams, A.S.W.Clinical Social Worker1114223989
  5. Hui HanOccupational Medicine Physician1386809093
  6. Elizabeth Hur, MDObstetrics & Gynecology Physician1659800365

Verify Harold 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 A82553
    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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35% more Medicare Part D claims than the average hospitalist physician in 2024

703 Medicare Part D claims for 153 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 20 claims were for opioids.

  1. Harold Lin703
  2. Specialty average521

Most prescribed

  1. Azithromycin48 claims
  2. Fluconazole39 claims
  3. Genvoya29 claims
  4. Biktarvy24 claims
  5. Atovaquone-Proguanil Hcl22 claims
  6. Cefadroxil20 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. Permanente Medical Group IncFresno, CA

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

Harold Lin among 3,099 hospitalist physician records in California

Harold 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 73% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated1995 · median 2010 among the 2,505 with a school on file
  • Record last updated2022 · 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. Kevin CritchlowOakland, CA 946121912380346
  2. Valerie Colacurcio, MDOakland, CA 946111295809515
  3. Henry Kim, MDOakland, CA 946111184764615
  4. Phillip Kim, MDOakland, CA 946111962576264
  5. Alexander Krassner, DOOakland, CA 946111568744654
  6. Yu-Te Lee, MDOakland, CA 946111922187624
  7. Wayne Leong, M.D.Oakland, CA 946111023196102
  8. Negean Mahmoudi, MDOakland, CA 946111467530048

Common questions

What is Harold Lin, MD's NPI number?

Harold Lin, MD's National Provider Identifier (NPI) is 1063590636, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Harold Lin, MD located?

The NPPES record lists a practice address at 1800 Harrison St FL 7, Oakland, CA, 94612. Phone: (510) 625-6262. Providers update this record themselves, so call before visiting.

How can I verify Harold Lin, MD's license?

NPPES lists California license number A82553, 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 Harold Lin, MD prescribe under Medicare Part D?

In 2024, Harold Lin, MD had 703 Medicare Part D claims for 153 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.