Dr. Gary Dean Sinclair, PHD, LMSW
Dr. Gary Dean Sinclair is a Clinical Social Worker provider (Social Worker) practicing in Grand Junction, CO, registered in the NPPES registry with NPI 1053571802 since 2008. The credential PHD stands for Doctor of Philosophy. Practices at First Counseling, LLC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1053571802 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Gary Dean Sinclair |
| Credential | PHD, LMSW |
| Sex | Male |
| Practice address | Grand Junction, CO, 81505 |
| Phone | 9702014848 |
| Enumeration date | 2008-06-16 |
| Last updated in NPPES | 2019-09-25 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1041C0700X | Clinical Social Worker | Secondary | 4218 | KS |
| 1041C0700X | Clinical Social Worker | Primary | 09925912 | CO |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Copy-ready billing details
Provider: Gary Sinclair, PHD, LMSW NPI: 1053571802 Taxonomy: 1041C0700X (Clinical Social Worker) Address: Grand Junction, CO, 81505
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1407213705 | Samuel Davis | Individual | Professional Counselor | Grand Junction, CO |
| 1083230221 | First Counseling, LLC | Organization | Mental Health Clinic/Center (Including Community Mental Health Center) | Grand Junction, CO |
Verify this record
Cross-check NPI 1053571802 against the authoritative CMS record: view Dr. Gary Dean Sinclair 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2019-09-25.