What is Diana Guzman's NPI number?

Diana Guzman's National Provider Identifier (NPI) is 1427919166, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Diana Guzman's specialty?

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

Where is Diana Guzman located?

Diana Guzman's practice location on file with NPPES is 16 Highmeadow Ln, Oyster Bay, NY 11771-4001.

What is Diana Guzman's phone number?

The practice phone number listed in the NPPES registry for Diana Guzman is (516) 670-6377.

Is Diana Guzman's NPI active?

Yes — Diana Guzman's NPI (1427919166) is active in the NPPES registry as of the last update on 2025-11-21.

IndividualActive

Diana Guzman

NPI 1427919166 · Clinical Social Worker · Oyster Bay, NY

Diana Guzman is a Clinical Social Worker provider in Oyster Bay, NY (NPI 1427919166).

Provider details

NPI number: 1427919166
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes
License: 129610-01 (NY)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 129610-01 (NY)
Behavioral Health & Social Service Providers

Profile Score

Established profile(53/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

16 Highmeadow Ln

Oyster Bay, NY 11771-4001

Phone: (516) 670-6377

Street-level locationGet directions

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Mailing address