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

AARON CLARK LSW
NPI 1023500469
Social Worker in Lancaster, OH

Active since June 01, 2018
220 E WALNUT ST, LANCASTER, OH 43130(800) 321-8293 Get Directions Write a Review

NPPES record last updated: September 14, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 14, 2026, Aug 20, 2024, Sep 15, 2021 (3 updates tracked since 2021).

About Aaron Clark Lsw NPPES

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

AARON CLARK LSW (NPI 1023500469) is an individual social worker in Lancaster, Ohio, licensed in Ohio (S.2308917) and active in the NPI registry since June 2018. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1023500469
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameAARON CLARKCredential: LSW
Location Address220 E WALNUT STLancaster, OH 43130-4464
Mailing AddressPo Box 132Athens, OH 45701-0132 · (800) 321-8293
Phone(800) 321-8293
Sole ProprietorNo
Enumeration DateJune 1, 2018
Last NPPES UpdateSeptember 14, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 14, 2026
✔ NPI 1023500469 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in OH · S.2308917
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.
Also ListedCommunity Health WorkerTaxonomy 172V00000X
220 E WALNUT ST, Lancaster, OH 43130
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Secondary Practice Locations 2

Location 168 W Church St Ste 318Newark, OH 43055-5050 · Phone (740) 281-1777
Location 21750 Granville PikeLancaster, OH 43130-1041 · Phone (833) 510-4357

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, Oscar Health Insurance, Oscar Insurance Corporation of Ohio.Insurance ›

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.

GEORGE GLENN KUA CARANCHO DO
Student in an Organized Health Care Education/Training Program
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (740) 277-6043
ROSE ARSLANIAN MD
Student in an Organized Health Care Education/Training Program
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (740) 277-6043
ECHO SCHRINER CDCA
Counselor (Addiction (Substance Use Disorder))
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (740) 277-6043
DR. KATHERINE NORDSTROM DO
Student in an Organized Health Care Education/Training Program
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (740) 277-6043
MADISON JENKINS
Social Worker
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (800) 321-8293
ALEX GEREZ DO
Student in an Organized Health Care Education/Training Program
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (740) 277-6043
ANITA EILEEN ZIELINSKI-BEAN LISW-S, CCM
Social Worker (Clinical)
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (740) 277-6043
FAIRFIELD COMMINITY HEALTH CENTER
Clinic/Center (Federally Qualified Health Center (FQHC))
220 E WALNUT ST
LANCASTER, OH 43130
Fairfield County (740) 277-6043

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 Aaron Clark's NPI number?

The NPI number for Aaron Clark is 1023500469. It was assigned to this individual provider in the NPPES registry on June 1, 2018.

Where is Aaron Clark located?

Aaron Clark practices at 220 E Walnut St, Lancaster, OH 43130. The listed phone number is (800) 321-8293.

What is Aaron Clark's specialty?

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

What insurance does Aaron Clark accept?

Health plans from CareSource, Oscar Health Insurance and Oscar Insurance Corporation of Ohio list Aaron Clark as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Aaron Clark was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.