Ronald Brennan, MD
NPI 1003880303 · Diagnostic Radiology Physician · Greenville, PA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Brennan, MD is a Diagnostic Radiology Physician provider in Greenville, PA (NPI 1003880303).
Provider details
- NPI number
- 1003880303
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD040424E (PA)
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
5,109 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, 2 Views71046 | 514 | $10 |
| X-Ray of Chest, 1 View71045 | 388 | $8 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 279 | $33 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 266 | $81 |
| Ct Scan of Chest Without Contrast71250 | 226 | $48 |
| Ct Scan of Chest With Contrast71260 | 212 | $50 |
| Ct Scan Head Or Brain Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-14
- Last updated
- 2009-10-15
Frequently asked questions
- What is Ronald Brennan's NPI number?
- Ronald Brennan's National Provider Identifier (NPI) is 1003880303, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Brennan's specialty?
- Ronald Brennan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Brennan located?
- Ronald Brennan's practice location on file with NPPES is 110 N Main St, Greenville, PA 16125-1726.
- What is Ronald Brennan's phone number?
- The practice phone number listed in the NPPES registry for Ronald Brennan is (724) 588-2100.
- Does Ronald Brennan accept Medicare?
- Ronald Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Brennan's NPI active?
- Yes — Ronald Brennan's NPI (1003880303) is active in the NPPES registry as of the last update on 2009-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.