John Michael Leary, M.D.
Specialist · Newport Beach, CA
John Michael Leary, M.D. is a specialist with a practice address in Newport Beach, California, and NPI 1891889606, issued on Oct 3, 2006. Check the license (California A36215, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Michael Leary
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A36215 CA
Self-reported in NPPES; status is on the state search - Practice location
- 180 Newport Center Dr Ste 120, Newport Beach, CA 92660
- Phone
- (949) 515-9377
- Enumerated
- Oct 3, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (949) 515-9378
- Medicare enrollment
- Enrolled (PECOS I20040202001222); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Verify John Michael Leary in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A36215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average specialist in 2024
20 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 65% of claims.
Most prescribed
- Ozempic11 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
- J Michael Leary MD IncNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Michael Leary among 5,749 specialist records in California
John Michael Leary, 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 fileYes · 19% of these records are
- Graduated1978 · median 1989 among the 1,075 with a school on file
- Record last updated2025 · 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).
53 specialist records list a practice address in Newport Beach
They are 53 of the 4,414 NPPES records with a practice address in Newport Beach, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Newport Beach → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Joseph Apostol, M.D.Newport Beach, CA 926601891877015
- Catherine Chang, M.D.Newport Beach, CA 926601295766426
- Gerald Gostanian, MDNewport Beach, CA 926601851491567
- David Herzlinger, M.D.Newport Beach, CA 926601891785465
- Mark Kan, M.D.Newport Beach, CA 926601336171446
- Ayoub Khaghani, MDNewport Beach, CA 926601922087394
- Yang Kim, M.D.Newport Beach, CA 926601477553667
- Gene Lawrence, M.D.Newport Beach, CA 926601730269879
Common questions
What is John Michael Leary, M.D.'s NPI number?
John Michael Leary, M.D.'s National Provider Identifier (NPI) is 1891889606, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Leary, M.D. located?
The NPPES record lists a practice address at 180 Newport Center Dr Ste 120, Newport Beach, CA, 92660. Phone: (949) 515-9377. Providers update this record themselves, so call before visiting.
How can I verify John Michael Leary, M.D.'s license?
NPPES lists California license number A36215, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does John Michael Leary, M.D. prescribe under Medicare Part D?
In 2024, John Michael Leary, M.D. had 20 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.