NPPES file of Aug 9, 2026

Gregg Steven Zankman, D.O.

Pediatrics Physician · Mesa, AZ

Gregg Steven Zankman, D.O. is a pediatrics physician with a practice address in Mesa, Arizona, and NPI 1558343871, issued on Nov 14, 2005. Check the license (Arizona 3618, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558343871
Name
Gregg Steven Zankman
Credential
D.O.
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
3618 AZ
20A15798 CA
Self-reported in NPPES; status is on the state search
Practice location
215 S Power RD Ste 106, Mesa, AZ 85206
Phone
(480) 214-0051
Enumerated
Nov 14, 2005
Record last updated
Oct 14, 2025
Fax
(480) 214-0055
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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Also registered at 215 S Power RD Ste 106

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

  1. Morgan Mitchell, APRNPediatric Nurse Practitioner1548195761
  2. Erich Wittmer, PA, SA-CPhysician Assistant1598366791

Verify Gregg Steven Zankman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 3618
    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
Open 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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Industry payments in 2024: $232.64

12 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregg Zankman$232.64
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Gregg Steven Zankman among 1,309 pediatrics physician records in Arizona

Gregg Steven Zankman, D.O. is one of 1,309 pediatrics physician records with a practice address in Arizona. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 41% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in Arizona

There are 1,309 pediatrics physician records in Arizona.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Michelle Allen, D.O.Mesa, AZ 852061902896590
  2. Trupti Amin-Chapman, M.D.Mesa, AZ 852061164412854
  3. Gary Auxier, M.D.Mesa, AZ 852061386613297
  4. Karl Baumgartner, MDMesa, AZ 852061174522890
  5. Lafe Carroll, D.O.Mesa, AZ 852061932178290
  6. H. Garner, M.D.Mesa, AZ 852061417947003
  7. Joseph Gassen, M.D.Mesa, AZ 852061972586006
  8. Dale Guthrie, M.D.Mesa, AZ 852061093784308

Common questions

What is Gregg Steven Zankman, D.O.'s NPI number?

Gregg Steven Zankman, D.O.'s National Provider Identifier (NPI) is 1558343871, issued on Nov 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregg Steven Zankman, D.O. located?

The NPPES record lists a practice address at 215 S Power RD Ste 106, Mesa, AZ, 85206. Phone: (480) 214-0051. Providers update this record themselves, so call before visiting.

How can I verify Gregg Steven Zankman, D.O.'s license?

NPPES lists Arizona license number 3618, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.