NPPES file of Aug 9, 2026

Dennis Oliver Dominguez, M.D.

Family Medicine Physician · El Cajon, CA

Dennis Oliver Dominguez, M.D. is a family medicine physician with a practice address in El Cajon, California, and NPI 1225063811, issued on Jul 11, 2006. Check the license (California G43179, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225063811
Name
Dennis Oliver Dominguez
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G43179 CA
Self-reported in NPPES; status is on the state search
Practice location
505 N Mollison Ave, El Cajon, CA 92021
Phone
(619) 441-3550
Enumerated
Jul 11, 2006
Record last updated
May 6, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(619) 579-2921
Medicaid ID
00G43190 CA
Medicare enrollment
Enrolled (PECOS I20071114000535); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1979
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 505 N Mollison Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Usama AlkazakiPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1306194410
  2. David Howe, M.D., D.C.Family Medicine Physician1356544837
  3. Carmen Wilson, FNPFamily Health Clinical Nurse Specialist1467247452

Verify Dennis Oliver Dominguez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G43179
    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.

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11% more Medicare Part D claims than the average family medicine physician in 2024

3,951 Medicare Part D claims for 280 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 52 claims were for opioids.

  1. Dennis Dominguez3,951
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium387 claims
  2. Amlodipine Besylate190 claims
  3. Hydrochlorothiazide189 claims
  4. Metformin Hcl187 claims
  5. Levothyroxine Sodium182 claims
  6. Lisinopril155 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: $410.82

4 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dennis Dominguez$410.82
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Centro DE Salud DE LA Comunidad DE San Ysidro, Inc.National City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dennis Oliver Dominguez among 17,133 family medicine physician records in California

Dennis Oliver Dominguez, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1979 · median 2005 among the 10,652 with a school on file
  • Record last updated2015 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

52 family medicine physician records list a practice address in El Cajon

They are 52 of the 3,277 NPPES records with a practice address in El Cajon, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Muhammad Azam, M.D.El Cajon, CA 920211740244367
  2. Maria Amanda Gamboa, M.D.El Cajon, CA 920211740638550
  3. Susannah Giezentaner, DOEl Cajon, CA 920211922123355
  4. Mona Hacker, M.D.El Cajon, CA 920211285847871
  5. David Howe, M.D., D.C.El Cajon, CA 920211356544837
  6. Nejat Jalisi, M.D.El Cajon, CA 920211063651552
  7. John James, MDEl Cajon, CA 920211174682108
  8. Yousef Kurdy, MDEl Cajon, CA 920211164527099

Common questions

What is Dennis Oliver Dominguez, M.D.'s NPI number?

Dennis Oliver Dominguez, M.D.'s National Provider Identifier (NPI) is 1225063811, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dennis Oliver Dominguez, M.D. located?

The NPPES record lists a practice address at 505 N Mollison Ave, El Cajon, CA, 92021. Phone: (619) 441-3550. Providers update this record themselves, so call before visiting.

How can I verify Dennis Oliver Dominguez, M.D.'s license?

NPPES lists California license number G43179, 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 Dennis Oliver Dominguez, M.D. prescribe under Medicare Part D?

In 2024, Dennis Oliver Dominguez, M.D. had 3,951 Medicare Part D claims for 280 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.