Clinicians affiliated with Atrium Health Union

Acute Care Hospitals · Government - Hospital District or Authority · 600 Hospital Dr, Monroe, NC 28112 · Charlotte-Concord-Gastonia, NC-SC · CCN 340130

Affiliation snapshotNovember 2, 2026CMS Doctors and Clinicians Facility Affiliation file, current snapshot (no end-of-2024 archive), applied to 2024

Activity year2024Medicare Part B claims, Original Medicare fee-for-service

955 clinicians affiliated with Atrium Health Union are in the 2024 Medicare Part B data (1,040 listed in the affiliation file).

Each clinician's exact figures are in their Physician Report, from their page. View sample report · Already purchased? Open your report (earlier Local report and passes)

Affiliated clinicians by specialty, 2024

All specialties · Diagnostic Radiology (107) · Nurse Practitioner (107) · Physician Assistant (104) · Family Practice (58) · Hospitalist (58) · Emergency Medicine (43) · Internal Medicine (43) · Certified Registered Nurse Anesthetist (CRNA) (42) · Neurology (34) · Cardiology (32) · Pathology (29) · Hematology-Oncology (28) · Pulmonary Disease (25) · General Surgery (24) · Gastroenterology (22) · Orthopedic Surgery (18) · Anesthesiology (17) · Nephrology (13) · Urology (13) · Otolaryngology (12) · Physical Medicine and Rehabilitation (12) · Interventional Cardiology (11) · Medical Oncology (11) · Neurosurgery (8) · Radiation Oncology (8) · Clinical Cardiac Electrophysiology (7) · Critical Care (Intensivists) (5) · Endocrinology (5) · Gynecological Oncology (5) · Sleep Medicine (5) · Vascular Surgery (4) · Hospice and Palliative Care (3) · Infectious Disease (3) · Podiatry (3) · Psychiatry (3) · Rheumatology (3) · Surgical Oncology (3) · Thoracic Surgery (3) · Advanced Heart Failure and Transplant Cardiology (2) · Cardiac Surgery (2) · General Practice (2) · Hematology (2) · Interventional Radiology (2) · Obstetrics & Gynecology (2) · Ophthalmology (2) · Oral Surgery (Dentist only) (2) · Plastic and Reconstructive Surgery (2) · Allergy/ Immunology (1) · Colorectal Surgery (Proctology) (1) · Geriatric Medicine (1) · Interventional Pain Management (1) · Pain Management (1) · Sports Medicine (1)

Neurology affiliated with Atrium Health Union, 2024

Alphabetical by last name; 34.

Name	City
Mohammad Abu-Rub, M.B.B.S.	Charlotte, NC
Nabil Ahmad, MD	Charlotte, NC
Aaron M Anderson, MD	Atlanta, GA
Satheesh Kumar Bokka	Louisville, KY
Ajal M Dave, MD	Charlotte, NC
William B Dawson, MD	Charlotte, NC
Andrea L Diedrich, MD	Charlotte, NC
Dan-Andrei Dimitriu, MD	Charlotte, NC
Danielle E Englert Doggett, MD	Charlotte, NC
Yuan Fan, MD	Charlotte, NC
Nicholas J Fleming, MD	Charlotte, NC
Sarise B Freiman, MD	Monroe, NC
Ryan M Gleason, MD	Charlotte, NC
Donna C Graves, MD	Charlotte, NC
Navid Jalali, MD	Charlotte, NC
Shoba Jayaram, MD	Monroe, NC
Steven F Karner, MD	Charlotte, NC
Abhinav R Katti, DO	Concord, NC
Tooba Khan, MD	Charlotte, NC
Christopher R Leon Guerrero, MD	Washington, DC
Eric L Marin, MD	Concord, NC
Leo F Mccluskey, MD	Charlotte, NC
Stephanie A Mcneill, MD	Concord, NC
Harsha G Nagaraja, MD	Monroe, NC
Ryan S Nelson, DO	Rock Hill, SC
Varun Kumar Pala, M.D	Madisonville, LA
Ashok V Patel, MD	Charlotte, NC
Harsh N Patel, MD	Concord, NC
T H Rao, M.D.	Charlotte, NC
Nakia Smith, MD	Gainesville, FL
Christian A Sonnefeld, MD	Concord, NC
Kurt R Washburn, MD	Charlotte, NC
Robert C Wiggins	Charlotte, NC
Crystal J Yu, MD	Concord, NC

Affiliation comes from the CMS Doctors and Clinicians Facility Affiliation file, hospital rows only; name, address and type from the CMS Hospital General Information file. CMS does not publish an end-of-year archive of the affiliation file, so the current snapshot is applied to the latest data year. A clinician listed with several hospitals or groups appears on each of their pages. How hospital pages are built