NPPES file of Aug 9, 2026

Lanny Hsu, D.O.

Pain Medicine Physician · Martinez, CA

Lanny Hsu, D.O. is a pain medicine physician with a practice address in Martinez, California, and NPI 1487834560, issued on Nov 6, 2007. Check the license (California 20A10191, 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
1487834560
Name
Lanny Hsu
Credential
D.O.
Primary taxonomy
Pain Medicine Physician 208VP0000X
License number
20A10191 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Muir Road, Martinez, CA 94553
Phone
(925) 313-4770
Enumerated
Nov 6, 2007
Record last updated
Jul 27, 2026
Fax
(925) 313-4567
Medicare enrollment
Enrolled (PECOS I20101018000748); accepts Medicare assignment
Medical or professional school
Western University Of Health Sciences College Of Dental Med, 2006
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 200 Muir Road

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

  1. Tipada Chaichana, LCSWSchool Social Worker1750614236
  2. Christina Chiang, PTPhysical Therapist1386796407
  3. Charles Dominguez, PHARM.D.Pharmacist1336291574
  4. Christine Leung, PTPhysical Therapist1356418495

Verify Lanny Hsu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10191
    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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30% fewer Medicare Part D claims than the average pain medicine physician in 2024

1,476 Medicare Part D claims for 195 beneficiaries, against an average of 2,095 among the 944 providers of this specialty who prescribed in Part D. 1,006 claims were for opioids.

  1. Lanny Hsu1,476
  2. Specialty average2,095

Most prescribed

  1. Hydrocodone-Acetaminophen224 claims
  2. Buprenorphine217 claims
  3. Oxycodone-Acetaminophen150 claims
  4. Gabapentin108 claims
  5. Fentanyl72 claims
  6. Oxycodone Hcl65 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 IncMartinez, CA

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

Lanny Hsu among 140 pain medicine physician records in California

Lanny Hsu, D.O. is one of 140 pain medicine physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 43% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2006 · median 2001 among the 81 with a school on file
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine Physician providers in California

There are 140 pain medicine physician records in California.

The 8 pain medicine physician records with the nearest ZIP codes

  1. Sima Sadeghinejad, MDMartinez, CA 945531902432859
  2. Eric Grigsby, M.D.Napa, CA 945581952328494
  3. Ya-Ting Chen, MDFremont, CA 945381982095535
  4. Benjamin Greer, M.D.Danville, CA 945261871890525
  5. Susan Gutierrez, MDSan Ramon, CA 945831518961127
  6. Stephen Levit, M.D.Walnut Creek, CA 945971730421603
  7. Kasra Amirdelfan, MDWalnut Creek, CA 945981033113642
  8. Leslie Delaney, M.D.Walnut Creek, CA 945981124110309

Common questions

What is Lanny Hsu, D.O.'s NPI number?

Lanny Hsu, D.O.'s National Provider Identifier (NPI) is 1487834560, issued on Nov 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Lanny Hsu, D.O. located?

The NPPES record lists a practice address at 200 Muir Road, Martinez, CA, 94553. Phone: (925) 313-4770. Providers update this record themselves, so call before visiting.

How can I verify Lanny Hsu, D.O.'s license?

NPPES lists California license number 20A10191, 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 Lanny Hsu, D.O. prescribe under Medicare Part D?

In 2024, Lanny Hsu, D.O. had 1,476 Medicare Part D claims for 195 beneficiaries; the average among pain medicine physician prescribers was 2,095. 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.