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

Keystone Service Systems, Inc

Organization Community/Behavioral Health Agency · NPI 1639347057

Keystone Service Systems, Inc is a Community/Behavioral Health Agency in Harrisburg, 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

4025 N Progress Ave
Harrisburg, PA 17110-9528
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

Community/Behavioral Health Agency (primary) Taxonomy 251S00000X

Record details

NPI number1639347057
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Charles Hooker — Ceo · (717) 232-7509
NPI enumeratedFebruary 19, 2008
Last updated in NPPESApril 1, 2009
Mailing address124 Pine St, Harrisburg, PA 17101-1208

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