Mr. Gregory Bret Hamilton, D.C.
Mr. Gregory Bret Hamilton is a Chiropractor provider (Chiropractor) practicing in Clarkston, MI, registered in the NPPES registry with NPI 1720085830 since 2005. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1720085830 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. Gregory Bret Hamilton |
| Credential | D.C. |
| Sex | Male |
| Practice address | Clarkston, MI, 48346 |
| Phone | 2486257690 |
| Fax | 2486257140 |
| Enumeration date | 2005-07-05 |
| Last updated in NPPES | 2011-10-04 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 2301004964 | MI |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| OF33549 | Other | MI | BCBS |
| P91716 | Other | — | BCN |
| 01-009167 | Other | MI | HEALTH PLUS |
| 950F35013 0 | Other | — | BCBSM |
Copy-ready billing details
Provider: Gregory Hamilton, D.C. NPI: 1720085830 Taxonomy: 111N00000X (Chiropractor) Address: Clarkston, MI, 48346
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1801841846 | Kevin Homer | Individual | Chiropractor | Clarkston, MI |
| 1285940593 | Hamilton Chiropractic Clinic LLC | Organization | Chiropractor | Clarkston, MI |
| 1275106072 | Kehres Health and Chiropractic | Organization | Chiropractor | Clarkston, MI |
Verify this record
Cross-check NPI 1720085830 against the authoritative CMS record: view Mr. Gregory Bret Hamilton 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 2011-10-04.