Jack Gregston, MD
NPI 1225177447 · Diagnostic Radiology Physician · Springfield, MO
Jack Gregston, MD is a Diagnostic Radiology Physician provider in Springfield, MO (NPI 1225177447).
Provider details
- NPI number
- 1225177447
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 104377 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-05
- Last updated
- 2009-04-27
Frequently asked questions
- What is Jack Gregston's NPI number?
- Jack Gregston's National Provider Identifier (NPI) is 1225177447, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Gregston's specialty?
- Jack Gregston is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Gregston located?
- Jack Gregston's practice location on file with NPPES is 1235 E Cherokee St, Springfield, MO 65804-2203.
- What is Jack Gregston's phone number?
- The practice phone number listed in the NPPES registry for Jack Gregston is (417) 820-2500.
- Is Jack Gregston's NPI active?
- Yes — Jack Gregston's NPI (1225177447) is active in the NPPES registry as of the last update on 2009-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.