Mason Z. Day, DO

Medicare activity in 2024

Official CMS public-use data for Mason Z. Day, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)467 services
2. Hospital discharge day management, more than 30 minutes (99239)182 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)164 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)162 services
5. Critical care, first 30-74 minutes (99291)33 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%
• Arthritis55%
• Chronic kidney disease50%
• Ischemic heart disease49%
• Heart failure47%

Hospitals where Mason Z. Day works

Medicare's Facility Affiliation Data lists Mason Z. Day 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.

• Carolina East Medical CenterNew Bern, NC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 340131
• Carteret General HospitalMorehead City, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340142

Practice locations

Addresses where Mason Z. Day is enrolled with Medicare (CMS data updated October 2, 2026).

• 1144 N Rd StElizabeth City, NC 27909 (852) 335‑0531
• 2000 Neuse BlvdNew Bern, NC 28560 (252) 633‑8108

Group practices

Medicare enrollment lists Mason Z. Day as a member of this group (CMS data updated October 2, 2026).

• Usacs Integrated Acute Care Services of North Carolina, PLLC80 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in North Carolina →

Other internal medicine doctors in Elizabeth City

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

• Amandeep Singh, MD
• Lisbet D. Suarez, MD
• William H. Bobbitt Iii, MD
• Greg A. Warren, DO
• Suman Maharjan, MD
• Paola M. Palomino Guillen, MD
• Anum Hameed, MD
• Anuroop Avula, MD

All internal medicine doctors in Elizabeth City →

Other clinicians in Usacs Integrated Acute Care Services of North Carolina, PLLC

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

• Alan C. Stimson, MD
• Amandeep Singh, MD
• Heather M. Guiley
• Abdelaziz A. Elsanjak, MD
• Stephen B. Futh, PA
• Adam K. White

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