Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Keystone Service Systems, Inc

Organization Case Management Agency · NPI 1598900102

Keystone Service Systems, Inc is a Case Management Agency in Lancaster, Pennsylvania. Registered with an NPI since 2008.

In the registry since
2008
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

230 S Queen St
Lancaster, PA 17603-5342
Phone: (717) 232-7509
Fax: (717) 232-6687
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Case Management Agency (primary) Taxonomy 251B00000X

Record details

NPI number1598900102
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Charles Hooker — Ceo · (717) 232-7509
NPI enumeratedDecember 10, 2008
Last updated in NPPESDecember 10, 2008
Mailing address124 Pine St, Harrisburg, PA 17101-1208

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