William Hartz, M.D.
NPI 1194721803 · Vascular & Interventional Radiology Physician · Newark, DE
Provider details
- NPI number
- 1194721803
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35.132810 (OH)
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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
4,849 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 | 1,210 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 525 | $39 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 341 | $85 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 300 | $82 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 218 | $85 |
| Ct Scan of Upper Spine Without Contrast72125 | 214 | $47 |
| X-Ray of Chest, 2 Views71046 |
Practice location
Mailing address
Additional practice locations (3)
- 927 Broadway StQuincy, IL 62301-2719Phone: (217) 223-8400Fax: (217) 214-6295
- 4800 Maine StQuincy, IL 62305-5875Phone: (217) 224-6423Fax: (217) 214-6295
- 100 Medical DrHannibal, MO 63401-6877Phone: (573) 221-5250Fax: (573) 231-3731
Registry dates
- Enumerated
- 2005-06-27
- Last updated
- 2026-05-18
- Certified
- 2026-05-18
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.