NPPES file of Aug 9, 2026

James Robert Youngjohn, PH.D.

Clinical Neuropsychologist · Scottsdale, AZ

James Robert Youngjohn, PH.D. is a clinical neuropsychologist with a practice address in Scottsdale, Arizona, and NPI 1942328141, issued on Mar 26, 2007. Check the license (Arizona 1183, 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
1942328141
Name
James Robert Youngjohn
Credential
PH.D.
Primary taxonomy
Clinical Neuropsychologist 103G00000X
License number
1183 AZ
Self-reported in NPPES; status is on the state search
Practice location
7533 E 1St St, Scottsdale, AZ 85251
Phone
(480) 941-1774
Enumerated
Mar 26, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(480) 941-1838
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.
Download card Updates feed

Verify James Robert Youngjohn 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 1183
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

James Robert Youngjohn among 137 clinical neuropsychologist records in Arizona

James Robert Youngjohn, PH.D. is one of 137 clinical neuropsychologist records with a practice address in Arizona. 31% 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 2007, is newer than 22% of them.

  • NPI issued2007 · 22% of these records are older, 56% newer
  • In a Medicare fileNo · 31% of these records are
  • In the CMS Doctors and Clinicians fileNo · 35% of these records are
  • Record last updated2007 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103G00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Neuropsychologist providers in Arizona

There are 137 clinical neuropsychologist records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical neuropsychologist records with the nearest ZIP codes

  1. John Denboer, PH.D.Scottsdale, AZ 852541932345279
  2. David Leighton, PSY.D.Scottsdale, AZ 852541255546958
  3. Amber Mahan, PSY.D.Scottsdale, AZ 852541245819648
  4. Stephanie Middaugh, PSYDChandler, AZ 852481699338863
  5. Sarah Norbeck, PSY.D.Chandler, AZ 852481821600727
  6. Jayme Blais, PSYDScottsdale, AZ 852581487321170
  7. Larry Messer, PSYDScottsdale, AZ 852581578604187
  8. Christopher Nicholls, PH.D.Scottsdale, AZ 852581265655138

Common questions

What is James Robert Youngjohn, PH.D.'s NPI number?

James Robert Youngjohn, PH.D.'s National Provider Identifier (NPI) is 1942328141, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is James Robert Youngjohn, PH.D. located?

The NPPES record lists a practice address at 7533 E 1St St, Scottsdale, AZ, 85251. Phone: (480) 941-1774. Providers update this record themselves, so call before visiting.

How can I verify James Robert Youngjohn, PH.D.'s license?

NPPES lists Arizona license number 1183, 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.

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.