Dr. Mark G Sprague, DC
Dr. Mark G Sprague is a Chiropractor provider (Chiropractor) practicing in Quincy, IL, registered in the NPPES registry with NPI 1790799153 since 2006. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1790799153 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark G Sprague |
| Credential | DC |
| Sex | Male |
| Practice address | 1420 S 14TH ST, Quincy, IL, 62301 |
| Phone | 2172289000 |
| Enumeration date | 2006-07-28 |
| Last updated in NPPES | 2011-08-25 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 038-004126 | IL |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: Mark Sprague, DC NPI: 1790799153 Taxonomy: 111N00000X (Chiropractor) Address: 1420 S 14TH ST, Quincy, IL, 62301
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1548282940 | Tommy Vance | Individual | Chiropractor | Quincy, IL |
| 1992892889 | Vance Clinic of Chiropractic | Organization | Chiropractor | Quincy, IL |
| 1609012178 | Ryan Miller | Individual | Chiropractor | Quincy, IL |
| 1992437438 | Vance Clinic Pllc | Organization | Chiropractor | Quincy, IL |
Verify this record
Cross-check NPI 1790799153 against the authoritative CMS record: view Dr. Mark G Sprague 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 2011-08-25.