Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Gerald David Zirin, PSYD

Individual provider Clinical Psychologist · NPI 1922197904

Dr. Gerald David Zirin, PSYD is a Clinical Psychologist in Scottsdale, Arizona. Qualified in 1996, 30 years ago. Practices with Doctor on Demand Professionals of California, an 18-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Massachusetts.

Years since qualifying
30
Licensed in
AZ, MA
In the registry since
2006
Specialties on file
2
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

8124 E Cactus Rd Ste 410
Scottsdale, AZ 85260-5262
Phone: (602) 363-2872
Fax: (888) 839-1279
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3040 E Cactus Rd, Phoenix, AZ 85032-7196 — (602) 263-1200

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 7307 (MA)
Clinical Psychologist Taxonomy 103TC0700X · Licence 4058 (AZ)

Record details

NPI number1922197904
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedOctober 11, 2006
Last updated in NPPESJanuary 16, 2020
Certification dateJanuary 16, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Doctor On Demand Professionals Of California — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients12
Services billed 127 a service is one billed item, such as a visit, a test or a procedure
Average patient age63

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Doctor on Demand Professionals of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 18 clinicians in the practice; 12 are shown here.

Other providers in Scottsdale