Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CLARISSA MARRIE SHIRK LSW
NPI 1306693346
Social Worker - Clinical in Lancaster, PA

Active since May 06, 2024
131 FOXSHIRE DR, LANCASTER, PA 17601(717) 462-7003 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 15, 2026, May 21, 2026, May 6, 2024 (3 updates tracked since 2024).

About Clarissa Marrie Shirk Lsw NPPES

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

CLARISSA MARRIE SHIRK LSW (NPI 1306693346) is an individual clinical provider in Lancaster, Pennsylvania, licensed in Pennsylvania (CW027483) and active in the NPI registry since May 2024. She maintains a secondary practice location in Lamar.

NPPES Registry Identity

NPI1306693346
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCLARISSA MARRIE SHIRKCredential: LSW
Location Address131 FOXSHIRE DRLancaster, PA 17601-3925
Mailing AddressPo Box 454Lamar, PA 16848-0454 · (570) 377-0151
Sole ProprietorNo
Enumeration DateMay 6, 2024
Last NPPES UpdateSeptember 15, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 15, 2026
✔ NPI 1306693346 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in PA · CW027483
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
131 FOXSHIRE DR, Lancaster, PA 17601

Secondary Practice Location 1

Location 14702 Nittany Valley DriveLamar, PA 16848 · Phone (570) 377-0151

Other Providers at the Same Location NPPES 13

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

Counselor
131 FOXSHIRE DR
LANCASTER, PA 17601
Dentist (Endodontics)
131 FOXSHIRE DR
LANCASTER, PA 17601
Social Worker
131 FOXSHIRE DR
LANCASTER, PA 17601
Counselor (Professional)
131 FOXSHIRE DR
LANCASTER, PA 17601
Dentist (Endodontics)
131 FOXSHIRE DR
LANCASTER, PA 17601
Counselor (Professional)
131 FOXSHIRE DR
LANCASTER, PA 17601
Dentist (Periodontics)
131 FOXSHIRE DR
LANCASTER, PA 17601
Social Worker (Clinical)
131 FOXSHIRE DR
LANCASTER, PA 17601

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 Clarissa Shirk's NPI number?

The NPI number for Clarissa Shirk is 1306693346. It was assigned to this individual provider in the NPPES registry on May 6, 2024.

Where is Clarissa Shirk located?

Clarissa Shirk practices at 131 Foxshire Dr, Lancaster, PA 17601. The listed phone number is (717) 462-7003.

What is Clarissa Shirk's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Clarissa Shirk was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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.