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DR. GARY CRAIG MALLIS M.D.
NPI 1811998230
Pediatrics in Scottsdale, AZ

Active since August 09, 2005PECOS Enrolled
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 270, SCOTTSDALE, AZ 85255(480) 585-5355(480) 585-5358 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gary Craig Mallis M.d. NPPES

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

DR. GARY CRAIG MALLIS M.D. (NPI 1811998230) is an individual pediatrics provider in Scottsdale, Arizona, licensed in Arizona (22226) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811998230
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. GARY CRAIG MALLISCredential: M.D.
Location Address20201 N SCOTTSDALE HEALTHCARE DR, SUITE 270Scottsdale, AZ 85255-4134
Mailing Address20201 N Scottsdale Healthcare Dr, Suite 270Scottsdale, AZ 85255-4134 · (480) 585-5355 · Fax (480) 585-5358
Phone(480) 585-5355
Fax(480) 585-5358
Sole ProprietorNo
Enumeration DateAugust 9, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1811998230 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in AZ · 22226
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
20201 N SCOTTSDALE HEALTHCARE DR, Scottsdale, AZ 85255
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gary Craig Mallis M.d. 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 Gary Mallis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Phoenix Children's Medical Group
14 mi
Multi-Specialty
20325 N 51ST AVE, STE 116
Glendale, AZ 85308
  • Reassigned Medicare billing, Arizona enrollment
  • Medicare enrollment name: Phoenix Children's Hospital
  • 1,416 clinicians in this Medicare group
NPI 1679703441 (602) 933-0003

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 85255 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.

NIRAV PATEL MD
Dermatology
20201 N SCOTTSDALE HEALTHCARE DR, STE 260
SCOTTSDALE, AZ 85255
Maricopa County (480) 398-1550
ARIZONA ORTHOPAEDIC FOOT & ANKLE CENTER, LLC
Orthopaedic Surgery (Foot and Ankle Surgery)
20201 N SCOTTSDALE HEALTHCARE DR, STE 280
SCOTTSDALE, AZ 85255
Maricopa County (480) 473-3668
LYNN ADAIR DEMASTERS PA
Physician Assistant
20201 N SCOTTSDALE HEALTHCARE DR, STE 280
SCOTTSDALE, AZ 85255
Maricopa County (480) 272-6344
MRS. KATHERINE MARIE DUNCAN P.A.-C
Physician Assistant (Medical)
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 260
SCOTTSDALE, AZ 85255
Maricopa County (480) 398-1550
WILLIAM M. MARSH, MD, PC
General Practice
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 290
SCOTTSDALE, AZ 85255
Maricopa County (480) 585-0880
KELLY CATHRYN PEARSON M.D.
Dermatology
20201 N SCOTTSDALE HEALTHCARE DR, STE 260
SCOTTSDALE, AZ 85255
Maricopa County (480) 398-1550
WESLEY GARTH WILSON M.D.
Plastic Surgery
20201 N SCOTTSDALE HEALTHCARE DR, SUITE120
SCOTTSDALE, AZ 85255
Maricopa County (480) 513-9111
DR. MARK RAMI BARAKAT M.D.
Ophthalmology
20201 N SCOTTSDALE HEALTHCARE DR
SCOTTSDALE, AZ 85255
Maricopa County (602) 613-5473

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 Gary Mallis's NPI number?

The NPI number for Gary Mallis is 1811998230. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is Gary Mallis located?

Gary Mallis practices at 20201 N Scottsdale Healthcare Dr Suite 270, Scottsdale, AZ 85255. The listed phone number is (480) 585-5355.

What is Gary Mallis's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Gary Mallis enrolled in Medicare?

Yes. Gary Mallis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gary Mallis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gary Mallis reassigns Medicare benefits to Phoenix Children's Medical Group (Glendale, 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 Gary Mallis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gary Mallis accept?

Health plans from Blue Cross and Blue Shield of Oklahoma list Gary Mallis 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 Gary Mallis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.