Mark Diiulio, MD
NPI 1063875763 · Vascular & Interventional Radiology Physician · Williamsville, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Diiulio, MD is a Vascular & Interventional Radiology Physician provider in Williamsville, NY (NPI 1063875763).
Provider details
- NPI number
- 1063875763
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 315704 (NY)
Specialties & taxonomies
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
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,515 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 392 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 94 | $38 |
| X-Ray of Chest, 2 Views71046 | 94 | $10 |
| Drainage of Fluid From Abdominal Cavity Using Imaging Guidance49083 | 77 | $98 |
| Limited Ultrasound Scan of Abdomen76705 | 73 | $26 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 68 | $79 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,383 across 30 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
Registry dates
- Enumerated
- 2016-03-30
- Last updated
- 2023-08-21
- Certified
- 2023-08-21
Frequently asked questions
- What is Mark Diiulio's NPI number?
- Mark Diiulio's National Provider Identifier (NPI) is 1063875763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Diiulio's specialty?
- Mark Diiulio is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Diiulio located?
- Mark Diiulio's practice location on file with NPPES is 111 N Maplemere Rd Ste 120, Williamsville, NY 14221-3178.
- What is Mark Diiulio's phone number?
- The practice phone number listed in the NPPES registry for Mark Diiulio is (716) 836-4646.
- Does Mark Diiulio accept Medicare?
- Mark Diiulio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Diiulio's NPI active?
- Yes — Mark Diiulio's NPI (1063875763) is active in the NPPES registry as of the last update on 2023-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.