NPPES file of Aug 9, 2026

Steven G. Firestone, M.A.

Mental Health Counselor · Agoura Hills, CA

Steven G. Firestone, M.A. is a mental health counselor with a practice address in Agoura Hills, California, and NPI 1023330495, issued on Feb 25, 2010. Check the license (California 52348, 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
1023330495
Name
Steven G. Firestone
Credential
M.A.
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
52348 CA
Self-reported in NPPES; status is on the state search
Practice location
5923 Kanan RD, Agoura Hills, CA 91301
Phone
(818) 889-3905
Enumerated
Feb 25, 2010
Record last updated
Feb 25, 2010 (not updated in 16 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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Also registered at 5923 Kanan RD

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

  1. Jeff Appell, PH.D.Psychologist1740466291
  2. Mary Chernoff, MFTPsychologist1346253929
  3. Lisa Harris, PH.D.Clinical Psychologist1730205071
  4. Tal Leead, PSY.D.Clinical Psychologist1699396119
  5. Tal LeshemMarriage & Family Therapist1760362081
  6. Jessica LichtMarriage & Family Therapist1225596554

Verify Steven G. Firestone 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 52348
    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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Steven G. Firestone among 28,617 mental health counselor records in California

Steven G. Firestone, M.A. is one of 28,617 mental health counselor records with a practice address in California. 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 2010, is newer than 29% of them.

  • NPI issued2010 · 29% of these records are older, 67% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 3% of these records are
  • Record last updated2010 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

38 mental health counselor records list a practice address in Agoura Hills

They are 38 of the 541 NPPES records with a practice address in Agoura Hills, and 28,617 mental health counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 mental health counselor records with the nearest ZIP codes

  1. Samantha Bookman, MFTAgoura Hills, CA 913011710312244
  2. Paige BrodkinAgoura Hills, CA 913011700297322
  3. Danielle Ciccone, MS, LPCCAgoura Hills, CA 913011275964678
  4. Wesley CoultasAgoura Hills, CA 913011497873780
  5. Naghmeh DaneshradAgoura Hills, CA 913011477927903
  6. Alexandra HarariAgoura Hills, CA 913011821453895
  7. Teri Hartt, M.A.,M.F.T.Agoura, CA 913011699817296
  8. Laura Kansteiner, LMFTAgoura Hills, CA 913011457728859

Common questions

What is Steven G. Firestone, M.A.'s NPI number?

Steven G. Firestone, M.A.'s National Provider Identifier (NPI) is 1023330495, issued on Feb 25, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Steven G. Firestone, M.A. located?

The NPPES record lists a practice address at 5923 Kanan RD, Agoura Hills, CA, 91301. Phone: (818) 889-3905. Providers update this record themselves, so call before visiting.

How can I verify Steven G. Firestone, M.A.'s license?

NPPES lists California license number 52348, 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.

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.