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MR. ZACHARY MATTHEW OLSEN LSW
NPI 1023749561
Social Worker in Lancaster, PA

Active since June 23, 2022
1681 CROWN AVE, LANCASTER, PA 17601(717) 208-6686 Get Directions Write a Review

NPPES record last updated: February 12, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. Zachary Matthew Olsen Lsw NPPES

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

MR. ZACHARY MATTHEW OLSEN LSW (NPI 1023749561) is an individual social worker in Lancaster, Pennsylvania, licensed in Pennsylvania (SW142627) and active in the NPI registry since June 2022.

NPPES Registry Identity

NPI1023749561
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameMR. ZACHARY MATTHEW OLSENCredential: LSW
Location Address1681 CROWN AVELancaster, PA 17601-6303
Mailing Address1681 Crown AveLancaster, PA 17601-6303 · (717) 208-6686
Phone(717) 208-6686
Sole ProprietorNo
Enumeration DateJune 23, 2022
Last NPPES UpdateFebruary 12, 2026
NPPES CertifiedFebruary 12, 2026
✔ NPI 1023749561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Licenses✔ Licensed in PA · SW142627✔ Licensed in NJ · 44SL07168800
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.
1681 CROWN AVE, Lancaster, PA 17601
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Other Providers at the Same Location NPPES 16

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

BETHANY CHRISTIAN SERVICES
Social Worker (Clinical)
1681 CROWN AVE
LANCASTER, PA 17601
Lancaster County (610) 858-0180
DR. JEAN S CANNON PSY.D.
Psychologist (Clinical)
1681 CROWN AVE, SUITE 11
LANCASTER, PA 17601
Lancaster County (717) 393-9388
JAMIE MINICK
Counselor (Professional)
1681 CROWN AVE
LANCASTER, PA 17601
Lancaster County (717) 399-3213
TIFFANY PLAVCAN LMFT
Marriage & Family Therapist
1681 CROWN AVE
LANCASTER, PA 17601
Lancaster County (717) 449-8667
RECOVERY INSIGHT, INC.
Community/Behavioral Health
1681 CROWN AVE, SUITE 12
LANCASTER, PA 17601
Lancaster County (717) 517-8552
HANNAH LYNNE AVERS LCSW
Social Worker (Clinical)
1681 CROWN AVE, SUITE 10
LANCASTER, PA 17601
Lancaster County (717) 207-9857
MRS. BRITTANY LEAH DENTON LSW
Social Worker
1681 CROWN AVE
LANCASTER, PA 17601
Lancaster County (717) 208-6686
JEAN S. CANNON, PSY.D., INC
Clinic/Center
1681 CROWN AVE, SUITE 11
LANCASTER, PA 17601
Lancaster County (717) 393-9388

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 Zachary Olsen's NPI number?

The NPI number for Zachary Olsen is 1023749561. It was assigned to this individual provider in the NPPES registry on June 23, 2022.

Where is Zachary Olsen located?

Zachary Olsen practices at 1681 Crown Ave, Lancaster, PA 17601. The listed phone number is (717) 208-6686.

What is Zachary Olsen's specialty?

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

When was this NPI record last updated?

The NPPES record for Zachary Olsen was last updated on February 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.