Registry data as of Aug 27, 2026

Miguel Losada, MD

General Practice Physician · San Diego, CA

Miguel Losada, MD is a general practice physician with a practice address in San Diego, California, and NPI 1558441915, issued on Oct 17, 2006. Check the license (California A23249, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558441915
Name
Miguel Losada
Credential
MD
Primary taxonomy
General Practice Physician 208D00000X
License number
A23249 CA
Self-reported in NPPES; status is on the state search
Practice location
3250 EL Cajon Blvd, San Diego, CA 92104
Phone
(619) 282-2178
Enumerated
Oct 17, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Miguel Losada in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A23249
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

86% fewer Medicare Part D claims than the average general practice physician in 2024

408 Medicare Part D claims for 15 beneficiaries, against an average of 2,957 among the 8,605 providers of this specialty who prescribed in Part D.

  1. Miguel Losada408
  2. Specialty average2,957

Most prescribed

  1. Montelukast Sodium34 claims
  2. Farxiga22 claims
  3. Omeprazole22 claims
  4. Metoprolol Tartrate19 claims
  5. Atorvastatin Calcium17 claims
  6. Furosemide16 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.

General Practice Physician providers in California

There are 1,869 general practice physician records in California.

Other general practice physician records in California

  1. Dalal Aago, MDEl Cajon, CA1639863103
  2. Hessam Aazami, M.D.Canoga Park, CA1144299173
  3. Kenric Aban, M.D.Oceanside, CA1336218023
  4. Tahira Abbasi, MDLa Jolla, CA1619062346
  5. Ryan Abbott, M.D.Los Angeles, CA1194016030
  6. Adel Abdelsayed, M.D.Huntington Park, CA1922164961
  7. Brittany Abeldt, MDOakland, CA1982353884
  8. Ilona Abraham, MDEncino, CA1700939576
  9. Jerry Abraham, MD, MPH, CMQLos Angeles, CA1932514874
  10. Azniv Abrahamian, M.D.North Hollywood, CA1033270293

Common questions

What is Miguel Losada, MD's NPI number?

Miguel Losada, MD's National Provider Identifier (NPI) is 1558441915, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Miguel Losada, MD located?

The NPPES record lists a practice address at 3250 EL Cajon Blvd, San Diego, CA, 92104. Phone: (619) 282-2178. Providers update this record themselves, so call before visiting.

How can I verify Miguel Losada, MD's license?

NPPES lists California license number A23249, 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 Miguel Losada, MD prescribe under Medicare Part D?

In 2024, Miguel Losada, MD had 408 Medicare Part D claims for 15 beneficiaries; the average among general practice physician prescribers was 2,957. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.