Gary Mallis, M.D.
NPI 1811998230 · Pediatrics Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Mallis, M.D. is a Pediatrics Physician provider in Scottsdale, AZ (NPI 1811998230).
Provider details
- NPI number
- 1811998230
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 22226 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gary Mallis's NPI number?
- Gary Mallis's National Provider Identifier (NPI) is 1811998230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Mallis's specialty?
- Gary Mallis is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Mallis located?
- Gary Mallis's practice location on file with NPPES is 20201 N Scottsdale Healthcare Dr, Scottsdale, AZ 85255-4134.
- What is Gary Mallis's phone number?
- The practice phone number listed in the NPPES registry for Gary Mallis is (480) 585-5355.
- Does Gary Mallis accept Medicare?
- Gary Mallis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Mallis's NPI active?
- Yes — Gary Mallis's NPI (1811998230) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.