Mark Armstrong, MD
NPI 1851399729 · Diagnostic Radiology Physician · Hudson, OH
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Armstrong, MD is a Diagnostic Radiology Physician provider in Hudson, OH (NPI 1851399729).
Provider details
- NPI number
- 1851399729
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 168512 (NY)
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
4,990 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) |
|---|---|---|
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 2,179 | $99 |
| Mri Scan of Upper Spinal Canal Without Contrast72141 | 1,195 | $92 |
| Mri Scan of Middle Spinal Canal Without Contrast72146 | 558 | $79 |
| Ct Scan of Lower Spine Without Contrast72131 | 297 | $60 |
| Ct Scan of Upper Spine Without Contrast72125 | 218 | $65 |
| Mri Scan of Lower Spinal Canal Before and After Contrast72158 | 145 | $156 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-13
- Last updated
- 2023-03-07
Frequently asked questions
- What is Mark Armstrong's NPI number?
- Mark Armstrong's National Provider Identifier (NPI) is 1851399729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Armstrong's specialty?
- Mark Armstrong is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Armstrong located?
- Mark Armstrong's practice location on file with NPPES is 5655 Hudson Dr Ste 210, Hudson, OH 44236-4455.
- What is Mark Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Mark Armstrong is (330) 655-1869.
- Does Mark Armstrong accept Medicare?
- Mark Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Armstrong's NPI active?
- Yes — Mark Armstrong's NPI (1851399729) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.