NPPES file of Aug 9, 2026

Ernest Marquez

Addiction (Substance Use Disorder) Counselor · Santa Ana, CA

Ernest Marquez is an addiction (substance use disorder) counselor with a practice address in Santa Ana, California, and NPI 1902406846, issued on Oct 29, 2020. Check the license (California 5293, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1902406846
Name
Ernest Marquez
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
5293 CA
Self-reported in NPPES; status is on the state search
Practice location
1950 E 17TH St, Santa Ana, CA 92705
Phone
(714) 547-4300
Enumerated
Oct 29, 2020
Record last updated
Oct 29, 2020 (not updated in 6 years: call before relying on the address or phone)
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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8 nearest addiction (substance use disorder) counselor records → All 27,741 in California → Look up another NPI →

Also registered at 1950 E 17TH St

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

  1. Mark BallardCounselor1558918557
  2. Tammy ByarsLicensed Vocational Nurse1245909720
  3. Anna ChernitskayaAddiction (Substance Use Disorder) Counselor1245887892
  4. Mary FritzAddiction (Substance Use Disorder) Counselor1407403405
  5. Danielle Graniello, LPNLicensed Vocational Nurse1386252880
  6. Chrystelle LeeAddiction (Substance Use Disorder) Counselor1306516125

Verify Ernest Marquez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 5293    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
Find the California license search

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Ernest Marquez among 27,741 addiction (substance use disorder) counselor records in California

Ernest Marquez is one of 27,741 addiction (substance use disorder) counselor records with a practice address in California. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2020, is newer than 59% of them.

  • NPI issued2020 · 59% of these records are older, 36% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2020 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

407 addiction (substance use disorder) counselor records list a practice address in Santa Ana

They are 407 of the 8,904 NPPES records with a practice address in Santa Ana, and 27,741 addiction (substance use disorder) counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 27,741 in California → Every provider in Santa Ana → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Kristina Butner, LCSWSanta Ana, CA 927051407030778
  2. James Carleton, BA, RSCP, CATCISanta Ana, CA 927051013126945
  3. Breanna Gutierrez, M.S.Santa Ana, CA 927051083822407
  4. Richard Hernandez, RRWSanta Ana, CA 927051477761302
  5. Lasupo Ladipo, BA, RRWSanta Ana, CA 927051629287305
  6. Michelle LopezSanta Ana, CA 927051871674671
  7. Pete Magallanes, RRWSanta Ana, CA 927051225246267
  8. Leticia Mendoza, CASSanta Ana, CA 927051134338254

Common questions

What is Ernest Marquez's NPI number?

Ernest Marquez's National Provider Identifier (NPI) is 1902406846, issued on Oct 29, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Ernest Marquez located?

The NPPES record lists a practice address at 1950 E 17TH St, Santa Ana, CA, 92705. Phone: (714) 547-4300. Providers update this record themselves, so call before visiting.

How can I verify Ernest Marquez's license?

NPPES lists California license number 5293, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.