Elizabeth Williams, DO

Medicare activity in 2024

Official CMS public-use data for Elizabeth 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. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)1,500 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)218 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)143 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)88 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)85 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 blood pressure75%
• High cholesterol75%
• Arthritis47%
• Ischemic heart disease47%
• Anxiety39%
• Diabetes34%

Hospitals where Elizabeth Williams works

Medicare's Facility Affiliation Data lists Elizabeth 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.

• Northern Dutchess HospitalRhinebeck, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330049
• Vassar Brothers Medical CenterPoughkeepsie, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330023
• Westchester Medical CenterValhalla, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330234

Practice locations

Addresses where Elizabeth Williams is enrolled with Medicare (CMS data updated October 2, 2026).

• 243 N Rd, Suite 304Poughkeepsie, NY 12601 (845) 471‑9410
• 969 Main StFishkill, NY 12524 (845) 897‑9797

Group practices

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

• Premier Medical Group of the Hudson Valley PC134 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in New York →

Other gastroenterologists in Poughkeepsie

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

• Salvatore M. Buffa, MD
• Majed El Zouhairi, MD
• Simona Meca, MD
• Steven E. Helft, MD
• Zana Nikolla, MD
• Stuart C. Weinberger, MD
• Anthony A. Starpoli, MD
• Madhavi Gaddam, MD

All gastroenterologists in Poughkeepsie →

Other clinicians in Premier Medical Group of the Hudson Valley PC

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

• Tara R. Flanagan, PA
• Akshar Jaglan, DO
• Pooja H. Rambhia, MD
• Salvatore M. Buffa, MD
• Chinyere E. Ofonagoro, MD
• Elliot M. Levine, 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