William Marx, MD
NPI 1598780884 · Surgery Physician · Asheville, NC
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Marx, MD is a Surgery Physician provider in Asheville, NC (NPI 1598780884).
Provider details
- NPI number
- 1598780884
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 200300259 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,592 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 567 | $38 |
| Ct Scan of Upper Spine Without Contrast72125 | 202 | $46 |
| Mri Scan of Brain Without Contrast70551 | 148 | $68 |
| Mri Scan of Brain Before and After Contrast70553 | 144 | $105 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 132 | $68 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 119 | $79 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$193 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 222 Asheland AveAsheville, NC 28801-4016Phone: (828) 213-0594Fax: (828) 213-9149
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2026-04-09
- Certified
- 2026-04-09
Frequently asked questions
- What is William Marx's NPI number?
- William Marx's National Provider Identifier (NPI) is 1598780884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Marx's specialty?
- William Marx is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Marx located?
- William Marx's practice location on file with NPPES is 509 Biltmore Ave, Asheville, NC 28801-4601.
- What is William Marx's phone number?
- The practice phone number listed in the NPPES registry for William Marx is (828) 213-3524.
- Does William Marx accept Medicare?
- William Marx is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Marx's NPI active?
- Yes — William Marx's NPI (1598780884) is active in the NPPES registry as of the last update on 2026-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.