Mark Masi, PSYD
NPI 1992745921 · Clinical Psychologist · Arlington Heights, IL
Mark Masi, PSYD is a Clinical Psychologist provider in Arlington Heights, IL (NPI 1992745921).
Provider details
- NPI number
- 1992745921
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Male
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
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
Mailing address
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Masi's NPI number?
- Mark Masi's National Provider Identifier (NPI) is 1992745921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Masi's specialty?
- Mark Masi is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Masi located?
- Mark Masi's practice location on file with NPPES is 3295 Arlington Heights Rd, Arlington Heights, IL 60004-1565.
- What is Mark Masi's phone number?
- The practice phone number listed in the NPPES registry for Mark Masi is (847) 253-6698.
- Is Mark Masi's NPI active?
- Yes — Mark Masi's NPI (1992745921) 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.