Dayna Williams, M.D
NPI 1851683171 · Diagnostic Radiology Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dayna Williams, M.D is a Diagnostic Radiology Physician provider in Brooklyn, NY (NPI 1851683171).
Provider details
- NPI number
- 1851683171
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- 284029 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
1,703 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) |
|---|---|---|
| Screening Mammography77067 | 620 | $72 |
| Screening 3d Breast Mammography77063 | 619 | $39 |
| Complete Ultrasound Scan of 1 Breast76641 | 181 | $91 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 54 | $37 |
| Diagnostic Mammography of 1 Breast77065 | 48 | $64 |
| Screening Mammography77067 | 44 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-04
- Last updated
- 2018-12-31
Frequently asked questions
- What is Dayna Williams's NPI number?
- Dayna Williams's National Provider Identifier (NPI) is 1851683171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dayna Williams's specialty?
- Dayna Williams is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Dayna Williams located?
- Dayna Williams's practice location on file with NPPES is 450 Clarkson Ave, Brooklyn, NY 11203-2012.
- What is Dayna Williams's phone number?
- The practice phone number listed in the NPPES registry for Dayna Williams is (718) 270-8867.
- Does Dayna Williams accept Medicare?
- Dayna Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dayna Williams's NPI active?
- Yes — Dayna Williams's NPI (1851683171) is active in the NPPES registry as of the last update on 2018-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.