OrganizationActive
Grantgrayton
NPI 1477684637 · Clinical Social Worker · Washington, DC
Grantgrayton is a Clinical Social Worker organization in Washington, DC (NPI 1477684637).
Provider details
- NPI number
- 1477684637
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- James Garyton, Ceo(202) 582-1600
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
2412 Minnesota Ave Se
Washington, DC 20020-5300
Phone: (202) 582-1600
Fax: (202) 582-1638
Street-level locationGet directions
Mailing address
2412 Minnesota Ave Se
Washington, DC 20020-5300
Registry dates
- Enumerated
- 2007-03-08
- Last updated
- 2008-01-04
Frequently asked questions
- What is Grantgrayton's NPI number?
- Grantgrayton's National Provider Identifier (NPI) is 1477684637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grantgrayton?
- Grantgrayton is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Grantgrayton located?
- Grantgrayton's practice location on file with NPPES is 2412 Minnesota Ave Se, Washington, DC 20020-5300.
- What is Grantgrayton's phone number?
- The practice phone number listed in the NPPES registry for Grantgrayton is (202) 582-1600.
- Who is the authorized official for Grantgrayton?
- The authorized official listed on Grantgrayton's NPPES record is James Garyton, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grantgrayton's NPI active?
- Yes — Grantgrayton's NPI (1477684637) is active in the NPPES registry as of the last update on 2008-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.