Active NPI
Mark P Masi, PSYD
- Clinical Psychologist
- Arlington Heights, IL
National Provider Identifier
1992745921
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- Practice address
- 3295 Arlington Heights Rd
Suite 114
Arlington Heights, IL 60004-1565 - Phone
- (847) 253-6698
- NPI assigned
- Jun 7, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | IL | Primary |
Addresses
Primary practice location
3295 Arlington Heights Rd
Suite 114
Arlington Heights, IL 60004-1565
Mailing address
3295 Arlington Heights Rd
Suite 114
Arlington Heights, IL 60004-1565
Phone (847) 253-6698
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 21623208 | Other | IL | BLUE SHIELD OF IL |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 071004904 | IL | MD | Clinical Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149638400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1992745921",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3295 ARLINGTON HEIGHTS RD",
"address_2": "SUITE 114",
"city": "ARLINGTON HEIGHTS",
"state": "IL",
"postal_code": "600041565",
"telephone_number": "847-253-6698"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3295 ARLINGTON HEIGHTS RD",
"address_2": "SUITE 114",
"city": "ARLINGTON HEIGHTS",
"state": "IL",
"postal_code": "600041565",
"telephone_number": "847-253-6698"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MASI",
"first_name": "MARK",
"middle_name": "P",
"credential": "PSYD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-07",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "IL",
"license": null,
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BLUE SHIELD OF IL",
"identifier": "21623208",
"state": "IL"
}
],
"endpoints": [],
"other_names": []
}Other providers in Arlington Heights, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.