Leonard Hillel Lazarus, M.D.
Internal Medicine Physician · La Jolla, CA
Leonard Hillel Lazarus, M.D. is an internal medicine physician with a practice address in La Jolla, California, and NPI 1851314413, issued on Jul 25, 2006. Check the license (California A40022, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leonard Hillel Lazarus
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A40022 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7450 Olivetas Ave, La Jolla, CA 92037
- Phone
- (858) 450-5286
- Enumerated
- Jul 25, 2006
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (858) 454-4579
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 7450 Olivetas Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Coffin, OTD, OTR/LOccupational Therapist1609589027
Verify Leonard Hillel Lazarus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A40022Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
56 Medicare Part D claims for 11 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium13 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.
Leonard Hillel Lazarus among 17,696 internal medicine physician records in California
Leonard Hillel Lazarus, M.D. 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2018 · 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).
158 internal medicine physician records list a practice address in La Jolla
They are 158 of the 3,648 NPPES records with a practice address in La Jolla, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in La Jolla → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Andrews, M.D.La Jolla, CA 920371588639876
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- Annamaria Calabro, M.D.La Jolla, CA 920371508843244
- Bruce Covner, M.D.La Jolla, CA 920371720072192
- Neil Farber, MDLa Jolla, CA 920371043295363
- Shipra Khushu, M.D.La Jolla, CA 920371235118936
Common questions
What is Leonard Hillel Lazarus, M.D.'s NPI number?
Leonard Hillel Lazarus, M.D.'s National Provider Identifier (NPI) is 1851314413, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Hillel Lazarus, M.D. located?
The NPPES record lists a practice address at 7450 Olivetas Ave, La Jolla, CA, 92037. Phone: (858) 450-5286. Providers update this record themselves, so call before visiting.
How can I verify Leonard Hillel Lazarus, M.D.'s license?
NPPES lists California license number A40022, 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 Leonard Hillel Lazarus, M.D. prescribe under Medicare Part D?
In 2024, Leonard Hillel Lazarus, M.D. had 56 Medicare Part D claims for 11 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.