Alex J. Mercandetti, M.D.
Internal Medicine Physician · San Diego, CA
Alex J. Mercandetti, M.D. is an internal medicine physician with a practice address in San Diego, California, and NPI 1588691455, issued on Jun 27, 2006. Check the license (California G41199, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alex J. Mercandetti
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G41199 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4060 Fourth Ave, San Diego, CA 92103
- Phone
- (619) 291-9285
- Enumerated
- Jun 27, 2006
- Record last updated
- Dec 27, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (619) 291-9289
- Medicaid ID
- GR0084400 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4060 Fourth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alex J. Mercandetti in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G41199Check 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 internal medicine physician in 2024
206 Medicare Part D claims for 66 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Albuterol Sulfate Hfa21 claims
- Trelegy Ellipta20 claims
- Montelukast Sodium13 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.
Industry payments in 2024: $20.96
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Alex J. Mercandetti among 17,696 internal medicine physician records in California
Alex J. Mercandetti, 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 updated2007 · 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).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Arthur Kingsbury, M.D.San Diego, CA 921031144216284
- Timothy O'Neill, M.D.San Diego, CA 921031831172295
Common questions
What is Alex J. Mercandetti, M.D.'s NPI number?
Alex J. Mercandetti, M.D.'s National Provider Identifier (NPI) is 1588691455, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alex J. Mercandetti, M.D. located?
The NPPES record lists a practice address at 4060 Fourth Ave, San Diego, CA, 92103. Phone: (619) 291-9285. Providers update this record themselves, so call before visiting.
How can I verify Alex J. Mercandetti, M.D.'s license?
NPPES lists California license number G41199, 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 Alex J. Mercandetti, M.D. prescribe under Medicare Part D?
In 2024, Alex J. Mercandetti, M.D. had 206 Medicare Part D claims for 66 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.