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DR. JOHN THOMAS ZAHAROPOULOS III D.O.
NPI 1609005891
Psychiatry & Neurology - Child & Adolescent Psychiatry in Phoenix, AZ

Active since July 08, 2009PECOS EnrolledAccepts Medicare Assignment
3620 N 3RD ST, PHOENIX, AZ 85012(602) 230-7373(602) 230-5105 Get Directions Write a Review

NPPES record last updated: September 5, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. John Thomas Zaharopoulos Iii D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN THOMAS ZAHAROPOULOS III D.O. (NPI 1609005891) is an individual child & adolescent psychiatry provider in Phoenix, Arizona, licensed in Arizona (R70088) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1609005891
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameDR. JOHN THOMAS ZAHAROPOULOS IIICredential: D.O.
Location Address3620 N 3RD STPhoenix, AZ 85012-2020
Mailing Address3620 N 3rd StPhoenix, AZ 85012-2020 · (602) 230-7373 · Fax (602) 230-5105
Phone(602) 230-7373
Fax(602) 230-5105
Sole ProprietorYes
Medical School CMSOtherGraduated 2008
Enumeration DateJuly 8, 2009
Last NPPES UpdateSeptember 5, 2013
✔ NPI 1609005891 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in AZ · R70088
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
3620 N 3RD ST, Phoenix, AZ 85012
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc, Imperial Insurance Companies, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John Thomas Zaharopoulos Iii D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456529387
PECOS Enrollment IDI20110720000802
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show John Zaharopoulos reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Phoenix Children's Hospital
1.8 mi
Pediatrics
1919 E THOMAS RD
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 1,416 clinicians in this Medicare group
NPI 1922112044 (602) 933-1000
Tyla Health LLC
2.9 mi
Psychiatry
1800 E VAN BUREN ST
Phoenix, AZ 85006
  • Reassigned Medicare billing, Arizona enrollment
NPI 1790618007 (623) 308-2472
Joaquin B Bermudez Do PC
3.1 mi
Psychiatric Hospital
1800 E VAN BUREN ST
Phoenix, AZ 85006
  • Reassigned Medicare billing, Arizona enrollment
  • 3 clinicians in this Medicare group
NPI 1275173205 (602) 251-8736
Ubh Of Phoenix LLC
3.7 mi
Psychiatric Hospital
3550 EAST PINCHOT AVENUE
Phoenix, AZ 85018
  • Reassigned Medicare billing, Arizona enrollment
  • 17 clinicians in this Medicare group
NPI 1083942098 (602) 368-4550
Connectionsaz, LLC
3.8 mi
Multi-Specialty
1201 S 7TH AVE STE 105
Phoenix, AZ 85007
  • Reassigned Medicare billing, Arizona enrollment
  • 28 clinicians in this Medicare group
NPI 1083840953 (602) 253-5100
Agave Solutions PLLC
13 mi
Psychiatry
10550 W MCDOWELL RD
Avondale, AZ 85392
  • Reassigned Medicare billing, Arizona enrollment
  • 20 clinicians in this Medicare group
NPI 1619594546 (480) 565-3035

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
35 services14 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TEKEYSHA MACK LMSW
Social Worker
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373
CATHY KAPLICKI NP
Nurse Practitioner
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373
CALLIE M CALE LMSW
Social Worker (Clinical)
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373
RICHARD CRISLIP LCSW
Social Worker (Clinical)
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373
DAVID SHERWOOD LPC
Counselor (Professional)
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373
MONICA MCCUE LPC
Counselor (Professional)
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373
ABIGAIL LOWE LMSW
Social Worker
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373
ELIZABETH SAILOR HOLMES RN, CSN, PMH-NP
Nurse Practitioner (Psychiatric/Mental Health)
3620 N 3RD ST
PHOENIX, AZ 85012
Maricopa County (602) 230-7373

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Zaharopoulos's NPI number?

The NPI number for John Zaharopoulos is 1609005891. It was assigned to this individual provider in the NPPES registry on July 8, 2009.

Where is John Zaharopoulos located?

John Zaharopoulos practices at 3620 N 3rd St, Phoenix, AZ 85012. The listed phone number is (602) 230-7373.

What is John Zaharopoulos's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is John Zaharopoulos enrolled in Medicare?

Yes. John Zaharopoulos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for John Zaharopoulos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Zaharopoulos reassigns Medicare benefits to 6 organizations: Phoenix Children's Hospital (Phoenix, AZ), Tyla Health LLC (Phoenix, AZ), Joaquin B Bermudez Do PC (Phoenix, AZ), Ubh Of Phoenix LLC (Phoenix, AZ), Connectionsaz, LLC (Phoenix, AZ) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Zaharopoulos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Zaharopoulos accept?

Health plans from Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc, Imperial Insurance Companies, Inc., Oscar Health Plan, Inc. and UnitedHealthcare list John Zaharopoulos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Zaharopoulos was last updated on September 5, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.