Keystone Service Systems, Inc
Keystone Service Systems, Inc is a healthcare organization registered as Case Management Agency in Westminster, MD, holding Type 2 (organization) NPI 1992928600 since 2007. The authorized official on file is Charles Hooker, Ceo.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1992928600 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Keystone Service Systems, Inc |
| Practice address | 255 CLIFTON BLVD, SUITE 309, Westminster, MD, 21157 |
| Phone | 7172327509 |
| Fax | 7172326687 |
| Enumeration date | 2007-04-11 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | Charles Hooker |
|---|---|
| Title | Ceo |
| Phone | 7172327509 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 251B00000X | Case Management Agency | Primary | — | — |
Copy-ready billing details
Provider: Keystone Service Systems, Inc NPI: 1992928600 Taxonomy: 251B00000X (Case Management Agency) Address: 255 CLIFTON BLVD, SUITE 309, Westminster, MD, 21157
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1952527749 | Keystone Service Systems, Inc | Organization | Community/Behavioral Health Agency | Westminster, MD |
| 1861618654 | Keystone Service Systems | 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 1992928600 against the authoritative CMS record: view Keystone Service Systems, Inc 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, Inc?
Who is the authorized official for Keystone Service Systems, Inc?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.