Active NPI
William Griswold Pinney, PH.D.
- Psychologist
- Washington, DC
National Provider Identifier
1720013592
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- PSY1772
- Practice address
- 2440 M St NW
Suite 429
Washington, DC 20037-1404 - Phone
- (202) 296-7033
- Fax
- (202) 223-3939
- NPI assigned
- Jul 11, 2006
- 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 | PSY1772 | DC | Primary |
Addresses
Primary practice location
2440 M St NW
Suite 429
Washington, DC 20037-1404
Mailing address
2440 M St NW
Suite 429
Washington, DC 20037-1404
Phone (202) 296-7033
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Jun 30, 2026 through Jun 30, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PSY1772 | DC | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1152576000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1183852800000",
"number": "1720013592",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2440 M ST NW",
"address_2": "SUITE 429",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200371404",
"telephone_number": "202-296-7033",
"fax_number": "202-223-3939"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2440 M ST NW",
"address_2": "SUITE 429",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200371404",
"telephone_number": "202-296-7033",
"fax_number": "202-223-3939"
}
],
"practiceLocations": [],
"basic": {
"last_name": "PINNEY",
"first_name": "WILLIAM",
"middle_name": "GRISWOLD",
"name_prefix": "Dr.",
"credential": "PH.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-07-11",
"last_updated": "2007-07-08",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "DC",
"license": "PSY1772",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Washington, DC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; 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.