1. Home
  2. Directory
  3. Arizona
  4. Mesa
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JENNIFER ZAK
NPI 1689262040
Nurse Practitioner - Pediatrics, Critical Care in Mesa, AZ

Active since December 31, 2020PECOS Enrolled
1400 S DOBSON RD, MESA, AZ 85202(847) 772-3146 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Jennifer Zak NPPES

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

JENNIFER ZAK (NPI 1689262040) is an individual pediatrics, critical care provider in Mesa, Arizona, licensed in Arizona (253241) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689262040
Entity TypeIndividualFemale
Primary Taxonomy363LP0222X
Provider Legal NameJENNIFER ZAK
Location Address1400 S DOBSON RDMesa, AZ 85202-4707
Mailing Address1400 S Dobson RdMesa, AZ 85202-4707
Phone(847) 772-3146
Sole ProprietorNo
Enumeration DateDecember 31, 2020
Last NPPES UpdateOctober 20, 2026
NPPES CertifiedOctober 20, 2026
✔ NPI 1689262040 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Pediatrics, Critical CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0222X
License✔ Licensed in AZ · 253241
1400 S DOBSON RD, Mesa, AZ 85202
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jennifer Zak is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Jennifer Zak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Banner Physician Super Specialists Arizona LLC
0.2 mi
Nutrition, Education
1450 S DOBSON RD STE B221
Mesa, AZ 85202
  • Reassigned Medicare billing, Arizona enrollment
  • 188 clinicians in this Medicare group
NPI 1790337665 (480) 827-5370

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85202 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

VIREN PATEL PHARMD
Pharmacist
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (480) 412-4250
DR. EMMANUEL A BAYONGAN M.D.
Internal Medicine (Critical Care Medicine)
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (480) 543-2034
DR. HEATHER ANNE LEINBACH PHARMD
Pharmacist (Pharmacotherapy)
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (480) 512-5616
DRAKE HERRING RRA
Radiology Practitioner Assistant
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (480) 512-3773
SAVANNAH BABCOCK
Registered Nurse
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (480) 412-3000
DR. HOLLY MCDANIEL M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (602) 685-5211
CHARLES H PSHAENICH MD
Emergency Medicine
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (480) 456-9500
MADHURI KASHYAP MD
Emergency Medicine (Pediatric Emergency Medicine)
1400 S DOBSON RD
MESA, AZ 85202
Maricopa County (480) 412-3000

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 Jennifer Zak's NPI number?

The NPI number for Jennifer Zak is 1689262040. It was assigned to this individual provider in the NPPES registry on December 31, 2020.

Where is Jennifer Zak located?

Jennifer Zak practices at 1400 S Dobson Rd, Mesa, AZ 85202. The listed phone number is (847) 772-3146.

What is Jennifer Zak's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, Critical Care, with taxonomy code 363LP0222X.

Is Jennifer Zak enrolled in Medicare?

Yes. Jennifer Zak is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jennifer Zak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Zak reassigns Medicare benefits to Banner Physician Super Specialists Arizona LLC (Mesa, AZ). The 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 Jennifer Zak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jennifer Zak accept?

Health plans from Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Jennifer Zak 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 Jennifer Zak was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.