Merissa G. Harris, MD

Medicare activity in 2024

Official CMS public-use data for Merissa G. Harris, 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. Screening mammography (77067)824 services
2. Screening 3d breast mammography (77063)811 services
3. X-ray of chest, 1 view (71045)323 services
4. Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)156 services
5. Diagnostic mammography of 1 breast (77065)99 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%
• Arthritis46%
• Ischemic heart disease34%
• Diabetes33%
• Anxiety28%

Hospitals where Merissa G. Harris works

Medicare's Facility Affiliation Data lists Merissa G. Harris 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.

• Wellstar Cobb Medical CenterAustell, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110143
• Wellstar Douglas Medical CenterDouglasville, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110184
• Wellstar Kennestone Regional Medical CenterMarietta, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110035
• Wellstar North Fulton Medical CenterRoswell, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 110198
• Wellstar Paulding Medical CenterHiram, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 110042

Practice locations

Addresses where Merissa G. Harris is enrolled with Medicare (CMS data updated October 2, 2026).

• 790 Church St NE, Suite 400Marietta, GA 30060 (770) 952‑8899

Group practices

Medicare enrollment lists Merissa G. Harris as a member of this group (CMS data updated October 2, 2026).

• Quantum Radiology PC103 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Georgia →

Other radiologists in Marietta

Clinicians with the same Medicare primary specialty in Marietta, GA — not a recommendation.

• Puja Parikh, MD
• Graham Trent, MD
• Kelsey G. Courtney, MD
• Eric Huh, MD
• Peter Filev
• Umair J. Syed, MD
• Ankit V. Gandhi, MD
• Jay R. Desai, MD

All radiologists in Marietta →

Other clinicians in Quantum Radiology PC

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

• Sheila K. Mohan, MD
• Minsie Choi, PA
• Ryan B. Gravolet, MD
• Nancy C. Okechukwu, MD
• Aaron Cann, MD
• Tricia Storteboom

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