Lawrence M. Huan, MD
Internal Medicine Physician · Sonoma, CA
Lawrence M. Huan, MD is an internal medicine physician with a practice address in Sonoma, California, and NPI 1881986206, issued on May 3, 2011. Check the license (California A131505, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lawrence M. Huan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A131505 CA
Self-reported in NPPES; status is on the state search - Practice location
- 651 1St St W, Sonoma, CA 95476
- Phone
- (707) 938-3870
- Enumerated
- May 3, 2011
- Record last updated
- Mar 4, 2025
- Fax
- (707) 938-3895
- Medicare enrollment
- Enrolled (PECOS I20140926001802); may accept Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 651 1St St W
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brian Sebastian, MDInternal Medicine Physician1184624637
- Jerome Smith, MDPediatrics Physician1295708675
Verify Lawrence M. Huan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A131505Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,175 Medicare Part D claims for 697 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 33 claims were for opioids.
Most prescribed
- Fluticasone Propionate71 claims
- Albuterol Sulfate Hfa51 claims
- Atorvastatin Calcium42 claims
- Paxlovid41 claims
- Nitrofurantoin Mono-Macro36 claims
- Levothyroxine Sodium28 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 practice group's MIPS final score for 2023 (Medicare payment program): 75.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Permanente Medical Group IncPetaluma, CA
- Regents Univ OF California UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lawrence M. Huan among 17,696 internal medicine physician records in California
Lawrence M. Huan, 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 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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).
12 internal medicine physician records list a practice address in Sonoma
They are 12 of the 395 NPPES records with a practice address in Sonoma, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sonoma → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Guy Delorefice, M.D.Sonoma, CA 954761952426421
- Victor Iacovoni, M.D.Sonoma, CA 954761619985348
- Clinton Lane, M.D.Sonoma, CA 954761679564611
- Yong Liu, M.D.Sonoma, CA 954761568424919
- Walter Prehn, MDSonoma, CA 954761225042088
- Brian Sebastian, MDSonoma, CA 954761184624637
Common questions
What is Lawrence M. Huan, MD's NPI number?
Lawrence M. Huan, MD's National Provider Identifier (NPI) is 1881986206, issued on May 3, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Lawrence M. Huan, MD located?
The NPPES record lists a practice address at 651 1St St W, Sonoma, CA, 95476. Phone: (707) 938-3870. Providers update this record themselves, so call before visiting.
How can I verify Lawrence M. Huan, MD's license?
NPPES lists California license number A131505, 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 M. Huan, MD prescribe under Medicare Part D?
In 2024, Lawrence M. Huan, MD had 1,175 Medicare Part D claims for 697 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lawrence M. Huan, MD's MIPS final score?
The 2023 MIPS final score is 75.1 of 100, reported for the practice group. 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.