NPPES file of Aug 9, 2026

Irwin Grossman, PH.D.

Clinical Psychologist · Glendale, AZ

Irwin Grossman, PH.D. is a clinical psychologist with a practice address in Glendale, Arizona, and NPI 1205892056, issued on Apr 21, 2006. Check the license (Arizona 1302, as entered in NPPES) with the Arizona 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
1205892056
Name
Irwin Grossman
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
1302 AZ
Self-reported in NPPES; status is on the state search
Practice location
5757 W Thunderbird RD, Glendale, AZ 85306
Phone
(602) 439-0475
Enumerated
Apr 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(602) 439-0106
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 clinical psychologist records → All 841 in Arizona → Look up another NPI →

Also registered at 5757 W Thunderbird RD

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

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  5. Mary-Helene Brown, M.D.Obstetrics & Gynecology Physician1831159540
  6. Kevin Carter, M.D.Anesthesiology Physician1194763912

Verify Irwin Grossman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 1302    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 Arizona 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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Irwin Grossman among 841 clinical psychologist records in Arizona

Irwin Grossman, PH.D. is one of 841 clinical psychologist records with a practice address in Arizona. 14% 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 74% newer
  • In a Medicare fileNo · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 24% of these records are
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Arizona

There are 841 clinical psychologist records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 841 in Arizona → Every provider in Glendale → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Kimberly Caouette, PHDGlendale, AZ 853061821321084
  2. Eric Johnson, PSY.D.Glendale, AZ 853061023338423
  3. Nicole Roberts, PH.D.Glendale, AZ 853061801033386
  4. Laura Wendlandt, PH.D.Glendale, AZ 853061558591172
  5. David Biegen, EDDGlendale, AZ 853081750349767
  6. Robin Dilley, PH.DGlendale, AZ 853081548353188
  7. Jonna Dunlap, PSY.D.Glendale, AZ 853081043348915
  8. Melissa Flint, PSY.D.Glendale, AZ 853081598098444

Common questions

What is Irwin Grossman, PH.D.'s NPI number?

Irwin Grossman, PH.D.'s National Provider Identifier (NPI) is 1205892056, issued on Apr 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Irwin Grossman, PH.D. located?

The NPPES record lists a practice address at 5757 W Thunderbird RD, Glendale, AZ, 85306. Phone: (602) 439-0475. Providers update this record themselves, so call before visiting.

How can I verify Irwin Grossman, PH.D.'s license?

NPPES lists Arizona license number 1302, as entered by the provider. Search the Arizona 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.