William Millar, MD
NPI 1013945914 · Neuroradiology Physician · Southampton, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Millar, MD is a Neuroradiology Physician provider in Southampton, NY (NPI 1013945914).
Provider details
- NPI number
- 1013945914
- Entity type
- Individual
- Primary specialty
- Neuroradiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 199311-1 (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 tenure28% of score
19 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
105 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 Brain Before and After Contrast70553 | 34 | $300 |
| Mri Scan of Brain Before and After Contrast70553 | 23 | $109 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 13 | $177 |
| Ct Scan Head Or Brain Without Contrast70450 | 12 | $106 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 12 | $71 |
| Mri Scan of Upper Spinal Canal Without Contrast72141 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-29
- Last updated
- 2023-06-23
- Certified
- 2023-06-23
Frequently asked questions
- What is William Millar's NPI number?
- William Millar's National Provider Identifier (NPI) is 1013945914, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Millar's specialty?
- William Millar is listed in the NPPES registry with a primary specialty of Neuroradiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Millar located?
- William Millar's practice location on file with NPPES is 570 Hampton Rd Apt 25, Southampton, NY 11968-3019.
- What is William Millar's phone number?
- The practice phone number listed in the NPPES registry for William Millar is (631) 644-7244.
- Does William Millar accept Medicare?
- William Millar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Millar's NPI active?
- Yes — William Millar's NPI (1013945914) is active in the NPPES registry as of the last update on 2023-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.