What is Nadine Ruff's NPI number?

Nadine Ruff's National Provider Identifier (NPI) is 1427880921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Nadine Ruff's specialty?

Nadine Ruff is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is Nadine Ruff located?

Nadine Ruff's practice location on file with NPPES is 1 Circular Ave, Hamden, CT 06514-4002.

What is Nadine Ruff's phone number?

The practice phone number listed in the NPPES registry for Nadine Ruff is (203) 809-7864.

Is Nadine Ruff's NPI active?

Yes — Nadine Ruff's NPI (1427880921) is active in the NPPES registry as of the last update on 2025-09-15.

IndividualActive

Nadine Ruff

NPI 1427880921 · Social Worker · Hamden, CT

Nadine Ruff is a Social Worker provider in Hamden, CT (NPI 1427880921).

Provider details

NPI number: 1427880921
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes
License: 7664 (CT)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 7664 (CT)
Behavioral Health & Social Service Providers

Profile Score

Established profile(56/100 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
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

1 Circular Ave

Hamden, CT 06514-4002

Phone: (203) 809-7864

Street-level locationGet directions

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Mailing address