Active NPI
Markham Scott Giblin, PHD
- Psychologist
- Corvallis, OR
National Provider Identifier
1013971167
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- 925
- Practice address
- 1300 NW Harrison Blvd
Ste # 140
Corvallis, OR 97330-5916 - Phone
- (541) 738-6516
- Fax
- (541) 738-6517
- NPI assigned
- Apr 14, 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 |
|---|---|---|---|---|
| Psychologist | 103T00000X | 925 | OR | Primary |
Addresses
Primary practice location
1300 NW Harrison Blvd
Ste # 140
Corvallis, OR 97330-5916
Mailing address
1300 NW Harrison Blvd
Ste # 140
Corvallis, OR 97330-5916
Phone (541) 738-6516
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
- Opted out of Medicare
- Yes, effective Jul 1, 2016 through Jul 1, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 925 | OR | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1144972800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1013971167",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1300 NW HARRISON BLVD",
"address_2": "STE # 140",
"city": "CORVALLIS",
"state": "OR",
"postal_code": "973305916",
"telephone_number": "541-738-6516",
"fax_number": "541-738-6517"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1300 NW HARRISON BLVD",
"address_2": "STE # 140",
"city": "CORVALLIS",
"state": "OR",
"postal_code": "973305916",
"telephone_number": "541-738-6516",
"fax_number": "541-738-6517"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GIBLIN",
"first_name": "MARKHAM",
"middle_name": "SCOTT",
"name_prefix": "Mr.",
"credential": "PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-04-14",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "OR",
"license": "925",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Corvallis, OR
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.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.