What is Kathryn Marks's NPI number?

Kathryn Marks's National Provider Identifier (NPI) is 1538005277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Kathryn Marks's specialty?

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

Where is Kathryn Marks located?

Kathryn Marks's practice location on file with NPPES is 950 Danby Rd. Ste 202f, Ithaca, NY 14850-5663.

What is Kathryn Marks's phone number?

The practice phone number listed in the NPPES registry for Kathryn Marks is (607) 260-3100.

Is Kathryn Marks's NPI active?

Yes — Kathryn Marks's NPI (1538005277) is active in the NPPES registry as of the last update on 2026-04-27.

IndividualActive

Kathryn Marks, LMSW

NPI 1538005277 · Social Worker · Ithaca, NY

Kathryn Marks, LMSW is a Social Worker provider in Ithaca, NY (NPI 1538005277).

Provider details

NPI number: 1538005277
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: LMSW
Sex: Female
Sole proprietor: No
License: 130134 (NY)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 130134 (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

950 Danby Rd. Ste 202f

Ithaca, NY 14850-5663

Phone: (607) 260-3100

Street-level locationGet directions

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Mailing address