IndividualActive
Martha Gross, PHD
NPI 1871748061 · Psychologist · Washington, DC
Martha Gross, PHD is a Psychologist provider in Washington, DC (NPI 1871748061).
Provider details
- NPI number
- 1871748061
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1809 (DC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
4600 Connecticut Ave Nw
Suite223
Washington, DC 20008-5750
Phone: (202) 364-8555
Fax: (202) 364-8556
Street-level locationGet directions
Mailing address
3812 Harrison St Nw
Washington, DC 20015-1926
Registry dates
- Enumerated
- 2008-12-01
- Last updated
- 2008-12-01
Frequently asked questions
- What is Martha Gross's NPI number?
- Martha Gross's National Provider Identifier (NPI) is 1871748061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Gross's specialty?
- Martha Gross is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Martha Gross located?
- Martha Gross's practice location on file with NPPES is 4600 Connecticut Ave Nw, Washington, DC 20008-5750.
- What is Martha Gross's phone number?
- The practice phone number listed in the NPPES registry for Martha Gross is (202) 364-8555.
- Is Martha Gross's NPI active?
- Yes — Martha Gross's NPI (1871748061) is active in the NPPES registry as of the last update on 2008-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.