William J. Lyons, M.D.
Specialist · Long Beach, CA
William J. Lyons, M.D. is a specialist with a practice address in Long Beach, California, and NPI 1639139595, issued on Mar 24, 2006. Check the license (California G17266, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William J. Lyons
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- G17266 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2653 Elm Ave, Long Beach, CA 90806
- Phone
- (562) 595-7335
- Enumerated
- Mar 24, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (562) 427-3375
- Medicaid ID
- GR0029650 CA
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 2653 Elm Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anthony Ciarolla, M.D.Specialist1922068881
- Cynthia Forsthoff, M.D.Specialist1841250719
- Tiffany Green, NP-CFamily Nurse Practitioner1023462884
- Ramesh Patel, MDPediatric Hematology & Oncology Physician1083727051
- Susan Shannon, CRNPNurse Practitioner1588108781
- David Simon, MDPediatric Hematology & Oncology Physician1780818369
Verify William J. Lyons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G17266Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average specialist in 2024
78 Medicare Part D claims for 11 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Imbruvica11 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): 76.7 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).
William J. Lyons among 5,749 specialist records in California
William J. Lyons, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2026 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Long Beach → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Anthony Ciarolla, M.D.Long Beach, CA 908061922068881
- Cynthia Forsthoff, M.D.Long Beach, CA 908061841250719
- Douglas Garland, M.D.Long Beach, CA 908061508845264
- Douglas Jackson, M.D.Long Beach, CA 908061386624484
- Seth Kogan, M.D.Long Beach, CA 908061780652040
- Peter Kurzweil, M.D.Long Beach, CA 908061700865466
- David Morrison, M.D.Long Beach, CA 908061326027947
- Keith Mullins, MDLong Beach, CA 908061952367310
Common questions
What is William J. Lyons, M.D.'s NPI number?
William J. Lyons, M.D.'s National Provider Identifier (NPI) is 1639139595, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William J. Lyons, M.D. located?
The NPPES record lists a practice address at 2653 Elm Ave, Long Beach, CA, 90806. Phone: (562) 595-7335. Providers update this record themselves, so call before visiting.
How can I verify William J. Lyons, M.D.'s license?
NPPES lists California license number G17266, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William J. Lyons, M.D. prescribe under Medicare Part D?
In 2024, William J. Lyons, M.D. had 78 Medicare Part D claims for 11 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is William J. Lyons, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 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.