Dayna M. Williams, MD

Medicare activity in 2024

Official CMS public-use data for Dayna M. Williams, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Screening mammography (77067)664 services
2. Screening 3d breast mammography (77063)662 services
3. Complete ultrasound scan of 1 breast (76641)198 services
4. Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)54 services
5. Diagnostic mammography of 1 breast (77065)48 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol73%
• High blood pressure59%
• Arthritis42%
• Osteoporosis27%
• Diabetes25%
• Anxiety21%

Hospitals where Dayna M. Williams works

Medicare's Facility Affiliation Data lists Dayna M. Williams at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Mount Sinai Beth IsraelNew York, NY · Acute Care Hospital · closed, according to its website · CCN 330169
• Mount Sinai HospitalNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330024
• Mount Sinai WestNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330046

Practice locations

Addresses where Dayna M. Williams is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.

• 10 Union Sq ENew York, NY 10003 (212) 241‑8395
• 100 Th St and Madison AveNew York, NY 10029 (212) 241‑6500
• 1000 10th AveNew York, NY 10019 (212) 241‑6426
• 1111 Amsterdam AveNew York, NY 10025 (212) 241‑6426
• 1176 5th AveNew York, NY 10029 (212) 241‑8395

Group practices

Medicare enrollment lists Dayna M. Williams as a member of this group (CMS data updated October 2, 2026).

• Fpa Hospital Based425 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in New York →

Other radiologists in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

• Mamatha R. Gowda, MD
• Lindsey M. Massaro, MD
• Kristin C. Byrne, MD
• Benjamin Abiri, MD
• Arel Golombeck, MD
• Arielle L. Sasson, MD
• James Park, MD
• Stuart I. Bentley-Hibbert, MD

All radiologists in New York →

Other clinicians in Fpa Hospital Based

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Daniel Xue, MD
• Lindsey M. Massaro, MD
• Daniel M. Gainsburg, MD
• Arielle L. Sasson, MD
• Genevieve N. Abbey, MD
• Jeffrey L. Lautin, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians