Dr. Jack Leon Gregston, MD
Dr. Jack Leon Gregston is a Diagnostic Radiology Physician provider (Radiology) practicing in Springfield, MO, registered in the NPPES registry with NPI 1225177447 since 2007. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1225177447 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Jack Leon Gregston |
| Credential | MD |
| Sex | Male |
| Practice address | 1235 E CHEROKEE ST, Springfield, MO, 65804 |
| Phone | 4178202500 |
| Fax | 4178208155 |
| Enumeration date | 2007-02-05 |
| Last updated in NPPES | 2009-04-27 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2085R0202X | Diagnostic Radiology Physician | Primary | 104377 | MO |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 173098 | Other | MO | MO BLUE SHIELD |
| 134038001 | Medicaid | AR | — |
| C94989 | Other | — | UPIN |
| 206769218 | Medicaid | MO | — |
| 81773 | Other | AR | AR BLUE SHIELD |
Copy-ready billing details
Provider: Jack Gregston, MD NPI: 1225177447 Taxonomy: 2085R0202X (Diagnostic Radiology Physician) Address: 1235 E CHEROKEE ST, Springfield, MO, 65804
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1184540593 | Peter Tran | Individual | Pharmacy Technician | Springfield, MO |
| 1063339554 | Marriah Zeugin | Individual | Certified Registered Nurse Anesthetist | Springfield, MO |
| 1982600284 | Maria Brazil | Individual | Anesthesiology Physician | Springfield, MO |
| 1780677732 | Diane Lipscomb | Individual | Pediatric Critical Care Medicine Physician | Springfield, MO |
| 1447244884 | Olevia Pitts | Individual | Internal Medicine Physician | Springfield, MO |
| 1659360428 | Jessetta Joswick | Individual | Certified Registered Nurse Anesthetist | Springfield, MO |
| 1073504783 | Jim Raynor | Individual | Athletic Trainer | Springfield, MO |
| 1750372421 | Mark Seigler | Individual | Athletic Trainer | Springfield, MO |
Verify this record
Cross-check NPI 1225177447 against the authoritative CMS record: view Dr. Jack Leon Gregston 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 2009-04-27.