IndividualActive
Mary Masellis, M.A.
NPI 1548355563 · School Psychologist · Queen Creek, AZ
Mary Masellis, M.A. is a School Psychologist provider in Queen Creek, AZ (NPI 1548355563).
Provider details
- NPI number
- 1548355563
- Entity type
- Individual
- Primary specialty
- School PsychologistBehavioral Health & Social Service Providers
- Credential
- M.A.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% 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
20740 S Ellsworth Rd
Queen Creek, AZ 85242-9058
Phone: (480) 987-5993
Fax: (480) 987-7499
Street-level locationGet directions
Mailing address
2978 E Parkview Dr
Gilbert, AZ 85297-6438
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Masellis's NPI number?
- Mary Masellis's National Provider Identifier (NPI) is 1548355563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Masellis's specialty?
- Mary Masellis is listed in the NPPES registry with a primary specialty of School Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Masellis located?
- Mary Masellis's practice location on file with NPPES is 20740 S Ellsworth Rd, Queen Creek, AZ 85242-9058.
- What is Mary Masellis's phone number?
- The practice phone number listed in the NPPES registry for Mary Masellis is (480) 987-5993.
- Is Mary Masellis's NPI active?
- Yes — Mary Masellis's NPI (1548355563) 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.