Mark Twedt, MD
NPI 1811293525 · Diagnostic Radiology Physician · Richmond, VA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Twedt, MD is a Diagnostic Radiology Physician provider in Richmond, VA (NPI 1811293525).
Provider details
- NPI number
- 1811293525
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101259401 (VA)
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
15 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
3,989 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 | 1,008 | $8 |
| X-Ray of Chest, 2 Views71046 | 276 | $10 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 243 | $82 |
| 3d Radiographic Procedure76376 | 178 | $9 |
| Ct Scan of Chest Without Contrast71250 | 124 | $49 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 121 | $79 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-01-28
- Last updated
- 2016-08-03
Frequently asked questions
- What is Mark Twedt's NPI number?
- Mark Twedt's National Provider Identifier (NPI) is 1811293525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Twedt's specialty?
- Mark Twedt is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Twedt located?
- Mark Twedt's practice location on file with NPPES is 1250 E Marshall St, Richmond, VA 23298-5051.
- What is Mark Twedt's phone number?
- The practice phone number listed in the NPPES registry for Mark Twedt is (804) 828-6831.
- Does Mark Twedt accept Medicare?
- Mark Twedt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Twedt's NPI active?
- Yes — Mark Twedt's NPI (1811293525) is active in the NPPES registry as of the last update on 2016-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.