Marcus Hummings, PSY.D.
NPI 1548609951 · Clinical Psychologist · Washington, DC
Marcus Hummings, PSY.D. is a Clinical Psychologist provider in Washington, DC (NPI 1548609951).
Provider details
- NPI number
- 1548609951
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- No
- License
- PSY1000822 (DC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
Mailing address
Registry dates
- Enumerated
- 2013-06-19
- Last updated
- 2013-06-19
Frequently asked questions
- What is Marcus Hummings's NPI number?
- Marcus Hummings's National Provider Identifier (NPI) is 1548609951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Hummings's specialty?
- Marcus Hummings is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Marcus Hummings located?
- Marcus Hummings's practice location on file with NPPES is 6 Th and Bryant Sts Nw, Washington, DC 20059-0001.
- What is Marcus Hummings's phone number?
- The practice phone number listed in the NPPES registry for Marcus Hummings is (202) 806-6870.
- Is Marcus Hummings's NPI active?
- Yes — Marcus Hummings's NPI (1548609951) is active in the NPPES registry as of the last update on 2013-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.