Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Cassi W Grier, LPC INTERN
Counselor in Union, SC · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356677264
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Registry record
Entity type Individual (Type 1)
Name Cassi W Grier
Credential LPC INTERN
Sex Female
Practice address 130 Medical Sciences Dr, Union, SC, 29379
Phone (864) 427-1224
Fax (864) 429-0627
Enumeration date Oct 28, 2009
Last updated in NPPES Oct 28, 2009
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 121328 | Medicaid | SC | - |
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.
Frequently asked questions
What is the NPI number for Cassi Grier?
The National Provider Identifier (NPI) for Cassi Grier is 1356677264, a Type 1 (individual) record in the CMS NPPES registry.
Where does Cassi Grier practice?
The practice location on file with NPPES is in Union, SC. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jennifer Cooper Social Worker · Union, SC NPI 1255422119 Emma Bright Psychiatric/Mental Health Registered Nurse · Union, SC NPI 1013009885 Coral Bower Case Manager/Care Coordinator · Union, SC NPI 1275692469 Carroll Robinson Mental Health Counselor · Union, SC NPI 1144383241 James Platt Mental Health Counselor · Union, SC NPI 1891848701 Barbara Smith Mental Health Counselor · Union, SC NPI 1649394073 Brandon Simpson Mental Health Counselor · Union, SC NPI 1992935993 Barbara Franks Mental Health Counselor · Union, SC NPI 1326361445
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-28.