Active NPI
Holly Zajac Gastgeb, PH.D.
- Psychologist
- Pittsburgh, PA
National Provider Identifier
1689923419
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- PS017247
- Practice address
- 3811 Ohara St
Pittsburgh, PA 15213-2561 - Phone
- (412) 624-1000
- NPI assigned
- Sep 7, 2012
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychologist | 103T00000X | PS017247 | PA | Primary |
| Clinical Child & Adolescent Psychologist | 103TC2200X | PS017247 | PA |
Addresses
Primary practice location
3811 Ohara St
Pittsburgh, PA 15213-2561
Mailing address
3811 Ohara St
Pittsburgh, PA 15213-2561
Phone (412) 624-1000
Other practice location 1
201 N Craig St Ste 405
Pittsburgh, PA 15213-1516
Phone (866) 647-3436
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)
- Enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PS017247 | PA | MD | Psychologist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Associates in Behavioral Diagnostics and Treatment, LLC | Psychologist | Past | Accepting new patients |
| Associates in Behavioral Diagnostics and Treatment, LLC | Past | Accepting new patients |
Interoperability endpoints
- holly.z.gastgeb@upmcdirect.com
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Professional Counselor
- Coraopolis, PA
- NPI 1568731867
-
- Psychologist
- Moon TWP, PA
- NPI 1659649911
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1346976000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764720000000",
"number": "1689923419",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3811 OHARA ST",
"city": "PITTSBURGH",
"state": "PA",
"postal_code": "152132561",
"telephone_number": "412-624-1000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3811 OHARA ST",
"city": "PITTSBURGH",
"state": "PA",
"postal_code": "152132561",
"telephone_number": "412-624-1000"
}
],
"practiceLocations": [
{
"address_1": "201 N Craig St Ste 405",
"address_purpose": "LOCATION",
"city": "Pittsburgh",
"state": "PA",
"postal_code": "152131516",
"country_code": "US",
"telephone_number": "866-647-3436",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "GASTGEB",
"first_name": "HOLLY",
"middle_name": "ZAJAC",
"name_prefix": "Dr.",
"credential": "PH.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2012-09-07",
"last_updated": "2025-12-03",
"certification_date": "2025-12-03",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "PA",
"license": "PS017247",
"primary": true
},
{
"code": "103TC2200X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical Child & Adolescent",
"state": "PA",
"license": "PS017247",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Pittsburgh, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 3, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.