What is Diamond Holland's NPI number?

Diamond Holland's National Provider Identifier (NPI) is 1659180354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Diamond Holland's specialty?

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

Where is Diamond Holland located?

Diamond Holland's practice location on file with NPPES is 1301 Lenfant Sq Se, Washington, DC 20020-6724.

What is Diamond Holland's phone number?

The practice phone number listed in the NPPES registry for Diamond Holland is (202) 802-5556.

Is Diamond Holland's NPI active?

Yes — Diamond Holland's NPI (1659180354) is active in the NPPES registry as of the last update on 2025-01-06.

IndividualActive

Diamond Holland

NPI 1659180354 · Case Manager/Care Coordinator · Washington, DC

Diamond Holland is a Case Manager/Care Coordinator provider in Washington, DC (NPI 1659180354).

Provider details

NPI number: 1659180354
Entity type: Individual
Primary specialty: Case Manager/Care CoordinatorOther Service Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Case Manager/Care CoordinatorPrimary171M00000X
Other Service Providers

Profile Score

Basic profile(49/100 index)

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

Registry tenure38% of score
1 yr 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

1301 Lenfant Sq Se

Washington, DC 20020-6724

Phone: (202) 802-5556

Street-level locationGet directions

More DC providers

Mailing address