Brent J. Portz, DO

Medicare activity in 2024

Official CMS public-use data for Brent J. Portz, 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)12,800 services
2. Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel (37253)389 services
3. Ultrasonic guidance for blood vessel access (76937)250 services
4. Ultrasound evaluation of blood vessel with review by radiologist, initial vessel (37252)248 services
5. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)241 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%
• Chronic kidney disease75%
• Diabetes68%
• Heart failure56%
• Ischemic heart disease52%

Hospitals where Brent J. Portz works

Medicare's Facility Affiliation Data lists Brent J. Portz 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.

• ECU Health Bertie HospitalWindsor, NC · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 341304
• ECU Health Medical CenterGreenville, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340040
• ECU Health Roanoke Chowan HospitalAhoskie, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340099

Practice locations

Addresses where Brent J. Portz is enrolled with Medicare (CMS data updated October 2, 2026).

• 511 Paladin DrGreenville, NC 27834 (252) 752‑8880

Group practices

Medicare enrollment lists Brent J. Portz as a member of this group (CMS data updated October 2, 2026).

• Eastern Nephrology Associates PLLC77 clinicians in the group

Specialties

• Nephrologyprimary
• Internal Medicinealso

Find other Nephrology doctors in North Carolina →

Other nephrologists in Greenville

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

• Tammy Yu, MD
• Leanne S. Brown, MD
• Scott A. Kendrick, MD
• Jessica D. Morris
• Nawaf G. Atassi, MD
• Reginald I. Obi, MD
• William T. Kendrick, MD
• Ram A. Sapasetty, MD

All nephrologists in Greenville →

Other clinicians in Eastern Nephrology Associates PLLC

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

• Tammy Yu, MD
• Lindsay R. Roebuck-Gibson
• Douglas Linfert, MD
• Milagros P. Cailing, MD
• Ram A. Sapasetty, MD
• Hardik J. Patel, 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