NPPES file of Aug 9, 2026

Lawrence Siu-Yung Chan, M.D., M.H.A.

Dermatology Physician · Sacramento, CA

Lawrence Siu-Yung Chan, M.D., M.H.A. is a dermatology physician with a practice address in Sacramento, California, and NPI 1912916263, issued on Aug 5, 2006. Check the license (California G70528, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912916263
Name
Lawrence Siu-Yung Chan
Credential
M.D., M.H.A.
Primary taxonomy
Dermatology Physician 207N00000X
License numbers
G70528 CA
MD-25652 HI
036-085852 IL
Self-reported in NPPES; status is on the state search
Practice location
3301 C St Ste 1400, Sacramento, CA 95816
Phone
(916) 551-2608
Enumerated
Aug 5, 2006
Record last updated
Jun 4, 2025
Medicare enrollment
Enrolled (PECOS I20250618002477); 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.
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Also registered at 3301 C St Ste 1400

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

  1. Boya Abudu, MD, MPHDermatology Physician1336608637
  2. Alain Brassard, MD FRCPC FABDDermatology Physician1942711486
  3. Ilana Breen, MDStudent in an Organized Health Care Education/Training Program1770169120
  4. Austin HwangStudent in an Organized Health Care Education/Training Program1215607015
  5. Ted Jacoby, MDStudent in an Organized Health Care Education/Training Program1306520374
  6. Jayne Joo, M.D.MOHS-Micrographic Surgery Physician1942468962

Verify Lawrence Siu-Yung Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G70528
    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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6% more Medicare Part D claims than the average dermatology physician in 2024

845 Medicare Part D claims for 326 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.

  1. Lawrence Chan845
  2. Specialty average797

Most prescribed

  1. Ketoconazole118 claims
  2. Triamcinolone Acetonide118 claims
  3. Fluocinonide60 claims
  4. Clobetasol Propionate55 claims
  5. Fluorouracil49 claims
  6. Desonide36 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.

The MIPS final score for 2023 (Medicare payment program): 90.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score63.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

One hospital affiliation

  1. Hilo Benioff Medical CenterHilo, HI · Acute Care Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Lawrence Siu-Yung Chan among 2,083 dermatology physician records in California

Lawrence Siu-Yung Chan, M.D., M.H.A. is one of 2,083 dermatology physician records with a practice address in California. 83% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 56% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1985 · median 2006 among the 1,450 with a school on file
  • Record last updated2025 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in California

There are 2,083 dermatology physician records in California.

The 8 dermatology physician records with the nearest ZIP codes

  1. Elyn Bowers, MDSacramento, CA 958161083626931
  2. Barbara BurrallSacramento, CA 958161578512307
  3. Russell Consiglio, P.A.Sacramento, CA 958161346256369
  4. Nasim Fazel, MD, DDSSacramento, CA 958161376592105
  5. Roslyn Isseroff, M.D.Sacramento, CA 958161336115427
  6. John Kasch, M.D.Sacramento, CA 958161760485205
  7. Jesse Kramer, MDSacramento, CA 958161649387390
  8. Philina Lamb, MDSacramento, CA 958161386693125

Common questions

What is Lawrence Siu-Yung Chan, M.D., M.H.A.'s NPI number?

Lawrence Siu-Yung Chan, M.D., M.H.A.'s National Provider Identifier (NPI) is 1912916263, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence Siu-Yung Chan, M.D., M.H.A. located?

The NPPES record lists a practice address at 3301 C St Ste 1400, Sacramento, CA, 95816. Phone: (916) 551-2608. Providers update this record themselves, so call before visiting.

How can I verify Lawrence Siu-Yung Chan, M.D., M.H.A.'s license?

NPPES lists California license number G70528, 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 Lawrence Siu-Yung Chan, M.D., M.H.A. prescribe under Medicare Part D?

In 2024, Lawrence Siu-Yung Chan, M.D., M.H.A. had 845 Medicare Part D claims for 326 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Lawrence Siu-Yung Chan, M.D., M.H.A.'s MIPS final score?

The 2023 MIPS final score is 90.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.