Active NPI
Gregory A. Grinc, PH.D.
- Clinical Psychologist
- Washington, DC
National Provider Identifier
1285682575
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 1027
- Practice address
- 1400 20TH St NW
Suite 114
Washington, DC 20036-5906 - Phone
- (202) 331-8484
- Fax
- (202) 478-1717
- NPI assigned
- May 5, 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 1027 | DC | Primary |
| Clinical Psychologist | 103TC0700X | 1283 | MD |
Addresses
Primary practice location
1400 20TH St NW
Suite 114
Washington, DC 20036-5906
Mailing address
4117 Dunnel LN
Kensington, MD 20895-3637
Phone (301) 933-2565
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in DC
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20120406000021 | DC | Practitioner - Clinical Psychologist | 4587831854 | Practice locations: Bethesda, MD |
Care Compare profile
Medicare Care Compare- Specialty
- Clinical Psychologist
- Education
- Other, 1978
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
Practice addresses (Care Compare)
6931 Arlington Rd
Suite 560
Bethesda, MD 20814-7218
Phone (202) 331-8484
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1027 | DC | MD | Clinical Psychologist |
| 1283 | MD | MD | Clinical Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1146787200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1285682575",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4117 DUNNEL LN",
"city": "KENSINGTON",
"state": "MD",
"postal_code": "208953637",
"telephone_number": "301-933-2565",
"fax_number": "202-478-1717"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1400 20TH ST NW",
"address_2": "SUITE 114",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200365906",
"telephone_number": "202-331-8484",
"fax_number": "202-478-1717"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRINC",
"first_name": "GREGORY",
"middle_name": "A.",
"name_prefix": "Dr.",
"credential": "PH.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-05",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "DC",
"license": "1027",
"primary": true
},
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "MD",
"license": "1283",
"primary": false
}
],
"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 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.