Gregory Carl Simmons, D.C.
Gregory Carl Simmons is a Chiropractor provider (Chiropractor) practicing in Clovis, CA, registered in the NPPES registry with NPI 1013121946 since 2007. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1013121946 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Gregory Carl Simmons |
| Credential | D.C. |
| Sex | Male |
| Practice address | Clovis, CA, 93612 |
| Phone | 5599057508 |
| Fax | 5593258565 |
| Enumeration date | 2007-05-10 |
| Last updated in NPPES | 2007-07-09 |
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 | 21510 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1758336 | Medicaid | CA | — |
Copy-ready billing details
Provider: Gregory Simmons, D.C. NPI: 1013121946 Taxonomy: 111N00000X (Chiropractor) Address: Clovis, CA, 93612
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1104986546 | Jeffrey Hibbard | Individual | Dentist | Clovis, CA |
| 1356408074 | Donald Kinosian | Individual | General Practice Dentistry | Clovis, CA |
| 1043365679 | Lovik Mirzaeian | Individual | Dentist | Clovis, CA |
| 1972621688 | Clifford Stocks | Individual | General Practice Dentistry | Clovis, CA |
| 1215258926 | Jessie Robb | Individual | Clinical Social Worker | Clovis, CA |
Verify this record
Cross-check NPI 1013121946 against the authoritative CMS record: view Gregory Carl Simmons 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 2007-07-09.