Gregory Walton, MD
NPI 1700884152 · Diagnostic Radiology Physician · Louisville, KY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Walton, MD is a Diagnostic Radiology Physician provider in Louisville, KY (NPI 1700884152).
Provider details
- NPI number
- 1700884152
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28071 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,345 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 729 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 496 | $37 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 229 | $80 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 185 | $80 |
| Ct Scan of Upper Spine Without Contrast72125 | 147 | $44 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 136 | $78 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-11
- Last updated
- 2008-02-27
Frequently asked questions
- What is Gregory Walton's NPI number?
- Gregory Walton's National Provider Identifier (NPI) is 1700884152, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Walton's specialty?
- Gregory Walton is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Walton located?
- Gregory Walton's practice location on file with NPPES is 200 E Chestnut St, Louisville, KY 40202-1831.
- What is Gregory Walton's phone number?
- The practice phone number listed in the NPPES registry for Gregory Walton is (502) 629-7601.
- Does Gregory Walton accept Medicare?
- Gregory Walton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Walton's NPI active?
- Yes — Gregory Walton's NPI (1700884152) is active in the NPPES registry as of the last update on 2008-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.