William I. Mariencheck Jr., MD

Medicare activity in 2024

Official CMS public-use data for William I. Mariencheck Jr., 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. Critical care, first 30-74 minutes (99291)83 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)81 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)77 services
4. Test to measure expiratory airflow and volume (94010)44 services
5. Test to examine how well the lungs exchange gases (94729)43 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%
• COPD60%
• Arthritis48%
• Anxiety43%
• Diabetes40%

Hospitals where William I. Mariencheck Jr. works

Medicare's Facility Affiliation Data lists William I. Mariencheck Jr. 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.

• Lexington Memorial Hospital IncLexington, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340096
• North Carolina Baptist HospitalWinston-Salem, NC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 340047
• Wilkes Regional Medical CenterNorth Wilkesboro, NC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 340064

Practice locations

Addresses where William I. Mariencheck Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• Medical Ctr BlvdWinston Salem, NC 27157 (336) 716‑2734

Group practices

Medicare enrollment lists William I. Mariencheck Jr. as a member of this group (CMS data updated October 2, 2026).

• Wake Forest University Health Sciences2,645 clinicians in the group

Specialties

• Pulmonary Diseaseprimary

Find other Pulmonary Disease doctors in North Carolina →

Other pulmonologists in Winston Salem

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

• Jessica A. Palakshappa, MD
• Arjun B. Chatterjee, MD
• Sarah E. Maus, MD
• Daniel C. Files, MD
• Alyssa N. Simon, MD
• Chad R. Marion, DO
• Letlhogonolo B. Tlhabano, MD
• Jessica B. Field, MD

All pulmonologists in Winston Salem →

Other clinicians in Wake Forest University Health Sciences

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

• Thomas W. McLean, MD
• Shannon R. James
• Ricardo Bello Martinez, MD
• Karen H. Lee, CNA
• Taylor A. Andrews, PA
• Sydnie C. Bottorff, NP

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