Leonard Reynold Costantini, D.O.
General Practice Physician · San Diego, CA
Leonard Reynold Costantini, D.O. is a general practice physician with a practice address in San Diego, California, and NPI 1700266764, issued on Jun 4, 2015. Check the license (California 17054, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leonard Reynold Costantini
- Credential
- D.O.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 17054 CA
Self-reported in NPPES; status is on the state search - Practice location
- Naval Medical Center San Diego, San Diego, CA 92134
- Phone
- (619) 532-9795
- Enumerated
- Jun 4, 2015
- Record last updated
- Aug 1, 2023
- Fax
- (619) 532-7508
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 1,956 in California → Look up another NPI →
Also registered at Naval Medical Center San Diego
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leonard Reynold Costantini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 17054Check 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 general practice physician in 2024
26 Medicare Part D claims for 20 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
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 Reynold Costantini among 1,956 general practice physician records in California
Leonard Reynold Costantini, D.O. is one of 1,956 general practice physician records with a practice address in California. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 27% of these records are
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in California
There are 1,956 general practice physician records in California.
All 1,956 in California → Every provider in San Diego → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Taylor Brown, D.O.San Diego, CA 921341235459488
- Amy Callahan, D.O.San Diego, CA 921341437319209
- Brian Drummond, M.D.San Diego, CA 921341538130786
- Ikemefuna Ezedi, DOSan Diego, CA 921341255745626
- Erin Griffith, D.O.San Diego, CA 921341225029192
- Shawn McHugh, D.O.San Diego, CA 921341831161892
- Eimaneh Mostofian, M.D.San Diego, CA 921341154477628
- Truong Nguyen, D.O.San Diego, CA 921341639215080
Common questions
What is Leonard Reynold Costantini, D.O.'s NPI number?
Leonard Reynold Costantini, D.O.'s National Provider Identifier (NPI) is 1700266764, issued on Jun 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Reynold Costantini, D.O. located?
The NPPES record lists a practice address at Naval Medical Center San Diego, San Diego, CA, 92134. Phone: (619) 532-9795. Providers update this record themselves, so call before visiting.
How can I verify Leonard Reynold Costantini, D.O.'s license?
NPPES lists California license number 17054, 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 Reynold Costantini, D.O. prescribe under Medicare Part D?
In 2024, Leonard Reynold Costantini, D.O. had 26 Medicare Part D claims for 20 beneficiaries; the average among general practice physician prescribers was 3,030. 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.