What is Karyn Marsh's NPI number?

Karyn Marsh's National Provider Identifier (NPI) is 1851262091, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Karyn Marsh's specialty?

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

Where is Karyn Marsh located?

Karyn Marsh's practice location on file with NPPES is 202 New York Ave, Brooklyn, NY 11216-5964.

What is Karyn Marsh's phone number?

The practice phone number listed in the NPPES registry for Karyn Marsh is (917) 494-1122.

Is Karyn Marsh's NPI active?

Yes — Karyn Marsh's NPI (1851262091) is active in the NPPES registry as of the last update on 2025-09-12.

IndividualActive

Karyn Marsh, LCSW, PHD

NPI 1851262091 · Clinical Social Worker · Brooklyn, NY

Karyn Marsh, LCSW, PHD is a Clinical Social Worker provider in Brooklyn, NY (NPI 1851262091).

Provider details

NPI number: 1851262091
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW, PHD
Sex: Female
Sole proprietor: Yes
License: 077167 (NY)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 077167 (NY)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 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

202 New York Ave

Brooklyn, NY 11216-5964

Phone: (917) 494-1122

Street-level locationGet directions

More NY providers

Mailing address