NPI age
18 years
Enumerated 2007-08-05
● Active
Type 1 · Individual
DR. Ronald Dayton Sullivan, MD
Sullivan is 1 of 11 radiology providers in Garland and 1 of 3776 in Texas.
Primary specialty
Radiology
Plus 3 subspecialties
Licensed in
FL, ME, NH, TX
4 states
Status
Active
No deactivations on record
Last NPPES update
2025-12-03
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 3776 active radiology providers in Texas.
NPI age
18 years
≈ at median (19 yr)
State licenses
4 states
Top 81% — 18% of peers are multi-state
Subspecialties
0
36% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-08Enumerated in NPPES
2007
2026
Where they practice
Practice location
2300 Marie Curie Blvd., Baylor Medical Center At Garland
Garland, TX 75042
Mailing address
4302 Monroe Dr
Texarkana, TX 755032114
Additional practice locations
4 secondary locations on file with NPPES.
Location 2
14055 Riveredge Dr Ste 250
Tampa, FL 336372141
Location 3
2460 Curtis Ellis Dr
Rocky Mount, NC 278042237
Location 4
22 Bramhall St
Portland, ME 041023134
Location 5
489 State St
Bangor, ME 044016616
Specialties
-
Radiology PrimaryA radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (ME) | 1295926483 | |
| 05 (TX) | 204266501 | |
| 01 | 879930768 | MYUTMB 879930768 |
Multi-state credentialing: Licensed in 4 states. Useful context for credentialers building cross-state provider networks.
Practice context
Solo or small practice. No other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 3776 Radiology providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.