Mark Humphrey
NPI 1770116873 · Case Manager/Care Coordinator · Washington, DC
Mark Humphrey is a Case Manager/Care Coordinator provider in Washington, DC (NPI 1770116873).
Provider details
- NPI number
- 1770116873
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
- Home Health Aide374U00000X
Nursing Service Related Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2020-02-17
- Last updated
- 2025-06-02
- Certified
- 2025-06-02
Frequently asked questions
- What is Mark Humphrey's NPI number?
- Mark Humphrey's National Provider Identifier (NPI) is 1770116873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Humphrey's specialty?
- Mark Humphrey is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Mark Humphrey located?
- Mark Humphrey's practice location on file with NPPES is 35 K St Ne, Washington, DC 20002-4216.
- What is Mark Humphrey's phone number?
- The practice phone number listed in the NPPES registry for Mark Humphrey is (202) 839-3500.
- Is Mark Humphrey's NPI active?
- Yes — Mark Humphrey's NPI (1770116873) is active in the NPPES registry as of the last update on 2025-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.