Active NPI
Rand Gruen, PH.D.
- Psychologist
- Purchase, NY
National Provider Identifier
1558792580
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- 010021-1
- Practice address
- 2975 Westchester Ave
Suite 308
Purchase, NY 10577-2518 - Phone
- (914) 358-9924
- NPI assigned
- Dec 2, 2013
- Last updated
- Dec 2, 2013
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Psychologist | 103T00000X | 010021-1 | NY | Primary |
Addresses
Primary practice location
2975 Westchester Ave
Suite 308
Purchase, NY 10577-2518
Mailing address
2975 Westchester Ave
Suite 308
Purchase, NY 10577-2518
Phone (914) 358-9924
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Oct 25, 2025 through Oct 25, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 010021-1 | NY | MD | Psychologist |
| 010021 | NY | MD | Medical Physician Assistant |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1385942400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1385942400000",
"number": "1558792580",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2975 WESTCHESTER AVE",
"address_2": "SUITE 308",
"city": "PURCHASE",
"state": "NY",
"postal_code": "105772518",
"telephone_number": "914-358-9924"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2975 WESTCHESTER AVE",
"address_2": "SUITE 308",
"city": "PURCHASE",
"state": "NY",
"postal_code": "105772518",
"telephone_number": "914-358-9924"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRUEN",
"first_name": "RAND",
"name_prefix": "Dr.",
"credential": "PH.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2013-12-02",
"last_updated": "2013-12-02",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "NY",
"license": "010021-1",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Purchase, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2013; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.