Robert Lyons, M.D.
Emergency Medicine Physician · Sonora, CA
Robert Lyons, M.D. is an emergency medicine physician with a practice address in Sonora, California, and NPI 1609846146, issued on Jan 26, 2006. Check the license (California G42340, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Lyons
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G42340 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Greenley RD., Sonora, CA 95370
- Phone
- (209) 536-5000
- Enumerated
- Jan 26, 2006
- Record last updated
- Feb 20, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Robert Lyons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42340Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 79.2 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).
Robert Lyons among 7,751 emergency medicine physician records in California
Robert Lyons, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2009 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 emergency medicine physician records list a practice address in Sonora
They are 14 of the 629 NPPES records with a practice address in Sonora, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Sonora → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Penny Ablin, M.D.Sonora, CA 953701861486813
- William Bowie, M.D.Sonora, CA 953701578537932
- Blake Cleveland, M.D.Sonora, CA 953701124311253
- Donald Dudley, M.D.Sonora, CA 953701497727952
- Michael Forster, MDSonora, CA 953701821101577
- Ron Hood, MDSonora, CA 953701730292483
- Steven Joye, DOSonora, CA 953701497916498
- Donald Klatt, M.D.Sonora, CA 953701902878556
Common questions
What is Robert Lyons, M.D.'s NPI number?
Robert Lyons, M.D.'s National Provider Identifier (NPI) is 1609846146, issued on Jan 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Lyons, M.D. located?
The NPPES record lists a practice address at 1000 Greenley RD., Sonora, CA, 95370. Phone: (209) 536-5000. Providers update this record themselves, so call before visiting.
How can I verify Robert Lyons, M.D.'s license?
NPPES lists California license number G42340, 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.
What is Robert Lyons, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.2 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.