What is Larry Harrison's NPI number?

Larry Harrison's National Provider Identifier (NPI) is 1174389423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Larry Harrison's specialty?

Larry Harrison is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).

Where is Larry Harrison located?

Larry Harrison's practice location on file with NPPES is 35 K St Ne, Washington, DC 20002-4216.

What is Larry Harrison's phone number?

The practice phone number listed in the NPPES registry for Larry Harrison is (202) 839-3500.

Is Larry Harrison's NPI active?

Yes — Larry Harrison's NPI (1174389423) is active in the NPPES registry as of the last update on 2025-03-10.

IndividualActive

Larry Harrison

NPI 1174389423 · Case Manager/Care Coordinator · Washington, DC

Larry Harrison is a Case Manager/Care Coordinator provider in Washington, DC (NPI 1174389423).

Provider details

NPI number: 1174389423
Entity type: Individual
Primary specialty: Case Manager/Care CoordinatorOther Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Case Manager/Care CoordinatorPrimary171M00000X
Other Service Providers
Community Health Worker172V00000X
Other Service Providers

Profile Score

Established profile(50/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
2 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

35 K St Ne

Washington, DC 20002-4216

Phone: (202) 839-3500

Street-level locationGet directions

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Mailing address