Keystone Service Systems
Keystone Service Systems is a healthcare organization registered as Community/Behavioral Health Agency in Westminster, MD, holding Type 2 (organization) NPI 1861618654 since 2007. The authorized official on file is Charles Hooker, Ceo.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1861618654 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Keystone Service Systems |
| Practice address | 255 CLIFTON BLVD, SUITE 309, Westminster, MD, 21157 |
| Phone | 7172327509 |
| Fax | 7172326687 |
| Enumeration date | 2007-04-18 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | Charles Hooker |
|---|---|
| Title | Ceo |
| Phone | 7172327509 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 251S00000X | Community/Behavioral Health Agency | Primary | — | — |
Copy-ready billing details
Provider: Keystone Service Systems NPI: 1861618654 Taxonomy: 251S00000X (Community/Behavioral Health Agency) Address: 255 CLIFTON BLVD, SUITE 309, Westminster, MD, 21157
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1992928600 | Keystone Service Systems, Inc | Organization | Case Management Agency | Westminster, MD |
| 1952527749 | Keystone Service Systems, Inc | Organization | Community/Behavioral Health Agency | Westminster, MD |
| 1023339595 | Associated Catholic Charities, Inc. | Organization | Mental Health Clinic/Center (Including Community Mental Health Center) | Westminster, MD |
Verify this record
Cross-check NPI 1861618654 against the authoritative CMS record: view Keystone Service Systems on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What is the NPI number for Keystone Service Systems?
Who is the authorized official for Keystone Service Systems?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.