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KATHERINE WALSH
NPI 1558726349
Social Worker in Farmingville, NY

Active since December 21, 2015PECOS Enrolled
15 HORSEBLOCK PL, FARMINGVILLE, NY 11738(631) 854-2552 Get Directions Write a Review

NPPES record last updated: April 18, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 18, 2024, Dec 21, 2015 (2 updates tracked since 2015).

About Katherine Walsh NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE WALSH (NPI 1558726349) is an individual social worker in Farmingville, New York, licensed in New York (088246-1) and active in the NPI registry since December 2015. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1558726349
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameKATHERINE WALSH
Location Address15 HORSEBLOCK PLFarmingville, NY 11738-1204
Mailing Address21 Malvern LnStony Brook, NY 11790-2832 · (631) 806-5339
Phone(631) 854-2552
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateDecember 21, 2015
Last NPPES UpdateApril 18, 20242 updates tracked since enumeration
NPPES CertifiedApril 18, 2024
✔ NPI 1558726349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in NY · 088246-1
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
15 HORSEBLOCK PL, Farmingville, NY 11738
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine Walsh is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2062749252
PECOS Enrollment IDI20190812000192
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Katherine Walsh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Suffolk County Department Of Health Services
Same address
Mental Health (Including Community Mental Health Center)
15 HORSEBLOCK PL
Farmingville, NY 11738
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: County Of Suffolk
  • 17 clinicians in this Medicare group
NPI 1700989050 (631) 854-2552
Janice Martin Licensed Clinical Social Worker PC
6.7 mi
Mental Health (Including Community Mental Health Center)
710 MAIN ST
Port Jefferson, NY 11777
  • Reassigned Medicare billing, New York enrollment
  • 12 clinicians in this Medicare group
NPI 1902427941 (631) 680-7222

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CAITLYN AUBEL LMSW
Social Worker (Clinical)
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 852-2552
MR. IAN C LYONS LMSW
Social Worker
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 854-2552
ALFRED CARFORA RN
Registered Nurse
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 854-2552
SUFFOLK COUNTY DEPT. MENTAL HEALTH HYGIENE
Community/Behavioral Health
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 854-2571
DR. HAROLD B LUKE M.D.
Psychiatry & Neurology (Psychiatry)
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 854-2552
MEGHAN CLANCY
Student in an Organized Health Care Education/Training Program
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 854-2571
HEATHER JOHNSTON LCSWR
Social Worker (Clinical)
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 854-2552
MISS DEVON LINDSAY BEATTY
Student in an Organized Health Care Education/Training Program
15 HORSEBLOCK PL
FARMINGVILLE, NY 11738
Suffolk County (631) 854-2552

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Walsh's NPI number?

The NPI number for Katherine Walsh is 1558726349. It was assigned to this individual provider in the NPPES registry on December 21, 2015.

Where is Katherine Walsh located?

Katherine Walsh practices at 15 Horseblock Pl, Farmingville, NY 11738. The listed phone number is (631) 854-2552.

What is Katherine Walsh's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Katherine Walsh enrolled in Medicare?

Yes. Katherine Walsh is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Katherine Walsh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Walsh reassigns Medicare benefits to 2 organizations: Suffolk County Department Of Health Services (Farmingville, NY) and Janice Martin Licensed Clinical Social Worker PC (Port Jefferson, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Walsh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Katherine Walsh was last updated on April 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.