William Hartz, M.D.
NPI 1194721803 · Vascular & Interventional Radiology Physician · Newark, DE
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Hartz, M.D. is a Vascular & Interventional Radiology Physician provider in Newark, DE (NPI 1194721803).
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
21 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 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Budesonide/Formoterol Fumaratebrand: Symbicort | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
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
Frequently asked questions
- What is William Hartz's NPI number?
- William Hartz's National Provider Identifier (NPI) is 1194721803, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hartz's specialty?
- William Hartz is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Hartz located?
- William Hartz's practice location on file with NPPES is H-42 Omega Drive, Newark, DE 19713.
- What is William Hartz's phone number?
- The practice phone number listed in the NPPES registry for William Hartz is (302) 738-1700.
- Does William Hartz accept Medicare?
- William Hartz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Hartz's NPI active?
- Yes — William Hartz's NPI (1194721803) is active in the NPPES registry as of the last update on 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.