Dana D. Portenier, MD

Medicare activity in 2024

Official CMS public-use data for Dana D. Portenier, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)41 services
2. Telephone medical discussion with physician, 21-30 minutes (99443)25 services
3. Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)19 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 cholesterol71%
• Arthritis54%
• Depression53%
• Anxiety44%
• Diabetes31%

Hospitals where Dana D. Portenier works

Medicare's Facility Affiliation Data lists Dana D. Portenier 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 Dana D. Portenier is enrolled with Medicare (CMS data updated October 2, 2026).

• 2301 Erwin RdDurham, NC 27705 (919) 684‑8111
• 2351 Erwin RdDurham, NC 27705 (919) 684‑8111
• 3480 Wake Forest RdRaleigh, NC 27609
• 40 Duke Medicine CirDurham, NC 27710 (919) 684‑8111

Group practices

Medicare enrollment lists Dana D. Portenier 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 Durham

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

• Deepak Vikraman-Sushama, MD
• Suresh K. Agarwal Jr., MD
• Sabino Zani, MD
• Nicholas D. Klemen, MD
• Phillip P. Shadduck, MD
• Victoria A. Bendersky, MD
• Patrick E. Georgoff, MD
• Nicholas F. Parrish, MD

All general surgeons in Durham →

Other clinicians in Duke Health Integrated Practice, Inc

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

• David L. Leverenz, MD
• Deepak Vikraman-Sushama, MD
• Sujay M. Kansagra, MD
• Anna Lisa Chamis, MD
• Matthew C. Wakefield, MD
• Jeremy R. Glissen Brown, 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