Zachary F. Williams, MD

Medicare activity in 2024

Official CMS public-use data for Zachary F. 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. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)41 services
2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)25 services
3. Fusion of lower spine bone through abdomen with partial removal of disc (22558)14 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)14 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%
• Arthritis63%
• Ischemic heart disease55%
• Chronic kidney disease55%
• Diabetes51%

Hospitals where Zachary F. Williams works

Medicare's Facility Affiliation Data lists Zachary F. 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.

• Duke Regional HospitalDurham, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340155
• Duke University HospitalDurham, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340030

Practice locations

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

• 10207 Cerny StRaleigh, NC 27617 (919) 684‑8111
• 2301 Erwin RdDurham, NC 27705 (919) 684‑8111
• 2351 Erwin RdDurham, NC 27705 (919) 684‑8111
• 40 Duke Medicine CirDurham, NC 27710 (919) 684‑8111

Group practices

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

• Duke Health Integrated Practice, Inc3,185 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in North Carolina →

Other general surgeons in Raleigh

Clinicians with the same Medicare primary specialty in Raleigh, NC — not a recommendation.

• Stacy K. Bennett, MD
• Peter C. Ng, MD
• Paul B. Park, MD
• Sathish Mohan, MD
• Dawn M. Coleman, MD
• Joshua N. Herb, MD
• Michael L. Williford, MD
• Bala Gangadhara R. Thatigotla, MD

All general surgeons in Raleigh →

Other clinicians in Duke Health Integrated Practice, Inc

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

• Justin M. Goehl, CH
• Charles D. Scales Jr., MD
• Zachary Healy, MD
• Jill C. Barbour, NP
• Clayton E. Wisely, MD
• Hector Cooper, 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