NPPES file of Aug 9, 2026

Corey Bierman

Addiction (Substance Use Disorder) Counselor · Garden Grove, CA

Corey Bierman is an addiction (substance use disorder) counselor with a practice address in Garden Grove, California, and NPI 1770306391, issued on Nov 4, 2024. Check the license (California CI35980722, 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
1770306391
Name
Corey Bierman
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
CI35980722 CA
Self-reported in NPPES; status is on the state search
Practice location
13222 Chapman Ave, Garden Grove, CA 92840
Phone
(949) 767-1770
Enumerated
Nov 4, 2024
Record last updated
Nov 19, 2024
Fax
(424) 842-7075
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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Also registered at 13222 Chapman Ave

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

  1. Fidencio ArzateAddiction (Substance Use Disorder) Counselor1780533323
  2. Robert Connors, RADTBehavior Technician1467256768
  3. Lizette Gonzalez Calzada, LVNLicensed Vocational Nurse1205665015
  4. Samantha IlanAddiction (Substance Use Disorder) Counselor1760216964
  5. Andres Mayorga, RADTAddiction (Substance Use Disorder) Counselor1104657535
  6. Jason OsowskiAddiction (Substance Use Disorder) Counselor1538999248

Verify Corey Bierman 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 CI35980722    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

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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60 addiction (substance use disorder) counselor records list a practice address in Garden Grove

They are 60 of the 4,572 NPPES records with a practice address in Garden Grove, 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 60 in Garden Grove → All 27,741 in California → Every provider in Garden Grove →

Other addiction (substance use disorder) counselor records in California

  1. Sean A Jerome, CADCIICosta Mesa, CA1831884550
  2. Carrie AamodtVisalia, CA1932661311
  3. Emory Aaron, CCAPP C4321214Los Angeles, CA1073980801
  4. Lisa Aaron, CASACCulver City, CA1356090849
  5. Michael Abacherli, JD, RADTSan Jacinto, CA1235826983
  6. Victor AbadEl Cajon, CA1205562238
  7. Sean AbairTaft, CA1174084347
  8. Maira AbalosDelano, CA1508452038
  9. Jazmine AbanicoVentura, CA1851964613
  10. Israel Abarca, CAADESan Francisco, CA1114126950

Common questions

What is Corey Bierman's NPI number?

Corey Bierman's National Provider Identifier (NPI) is 1770306391, issued on Nov 4, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Corey Bierman located?

The NPPES record lists a practice address at 13222 Chapman Ave, Garden Grove, CA, 92840. Phone: (949) 767-1770. Providers update this record themselves, so call before visiting.

How can I verify Corey Bierman's license?

NPPES lists California license number CI35980722, 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.