Our Physician Team
With decades of combined clinical and procedural experience, the board-certified physicians at Waco Cardiology Cath Lab have the medical expertise to take care of you and your loved ones.
Our physicians give each patient the individual attention they deserve – with the patience and professionalism you would expect from some of the leaders in their respective fields. In addition, our doctors appreciate the significance of each procedure and we always take the time to educate our patients so that they feel comfortable from the moment they enter our doors to the time they are released.
The Physicians of Waco Cardiology Cath Lab & Surgery Center

Sherwin F. Attai, M.D., F.A.C.C.
Education
University of Wisconsin, Bachelor of Science, Biology
University of Wisconsin Medical School, Doctorate of Medicine
Training
Residency – Internal Medicine, University of California-Irvine
Cardiology Fellowship – University of California-Irvine
Interventional Cardiology Fellowship – Northwestern University
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified American Board of Internal Medicine, Interventional Cardiology, Board Certified
Board of Nuclear Cardiology, Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Hamilton General Hospital, Hamilton, Texas
Limestone Medical Center, Groesbeck, Texas
Parkview Regional Hospital, Mexia, Texas
Administrative Appointments
Medical Director, Waco Cardiology Cath Lab & ASC
Past Medical Director, Cardiology, Baylor Scott & White Medical Center – Hillcrest
Areas of Interest
Sherwin enjoys spending time with his wife and two children. Together, they enjoy tennis, skiing and spending time in the outdoors.
Timothy N. Ball, M.D., F.A.C.C.
Education
Texas A&M University, Bachelor of Science, Biomedical Engineering
Texas A&M University, Doctorate of Medicine
Training
Internship/Residency – Internal Medicine - University of Southwestern
Cardiovascular Disease Fellowship - Baylor University Medical Center
Cardiac Electrophysiology Fellowship - Baylor University Medical Center
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
American Board of Internal Medicine, Cardiac Electrophysiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Goodall Witcher Hospital, Clifton, Texas
Hamilton General Hospital, Hamilton, Texas
Clay M. Barbin, M.D., F.A.C.C.
Education
Southern Methodist University, Bachelor of Arts, Biology and Political Science
University of Texas Medical Branch at Galveston, Doctorate of Medicine
Training
Internship and Residency – Internal Medicine, Baylor University Medical Center
Cardiology Fellowship – Baylor University Medical Center
Interventional Cardiology Fellowship – Baylor University Medical Center
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
American Board of Internal Medicine, Interventional Cardiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Goodall Witcher Hospital, Clifton, Texas
Hamilton General Hospital, Hamilton, Texas
Hill Regional Hospital, Hillsboro, Texas
Limestone Medical Center, Groesbeck, Texas
Parkview Regional Hospital, Mexia, Texas
About Dr. Barbin
Dr. Barbin is a board-certified Cardiologist specializing in adult preventative, general and interventional cardiology. Dr. Barbin is proficient in preventing, diagnosing and treating diseases of the heart and vascular system, including coronary artery disease, congestive heart failure, arrhythmias, valvular heart disease, endocarditis, pericarditis, peripheral artery disease, congenital and structural heart conditions. Dr. Barbin also completed cardiovascular imaging training and board certifications in adult echocardiology and Cardiac CT.
Brian C. Barnett, M.D., F.A.C.C.
Education
The University of Texas at Austin, College of Pharmacy, Pharmacy Doctorate
Texas A&M Health Science Center, College of Medicine, Doctorate of Medicine
Training
Internship and Residency – Internal Medicine - Scott and White Hospital, Texas A&M Health Science Center
Cardiovascular Disease Fellowship - Scott and White Hospital, Texas A&M Health Science Center
Interventional Cardiology Fellowship - Scott and White Hospital, Texas A&M Health Science Center
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
American Board of Internal Medicine, Interventional Cardiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
American Medical Association
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Hamilton General Hospital, Hamilton, Texas
Parkview Regional Hospital, Mexia, Texas
Faculty Appointments
Assistant Professor, Texas A&M Health Science Center, College of Medicine, 2012-2013
Awards
Internal Medicine Chief Resident, Scott and White Hospital, Texas A&M Health Science Center
Texas Chapter of the American College of Physicians, Board of Directors, Resident Delegate, 2010- 2011
Administrative Appointments
Medical Director, Structural Heart Program, Ascension Providence Health Center
Areas of Interest
General and Interventional Cardiology
Structural Heart Disease including PFO/ASD closure, TAVR (Transcatheter Aortic Valve Replacement)
Peripheral Vascular Disease
Preventative Cardiology
Rodney A. Brown, M.D., F.A.C.C.
Education
University of Monterrey College of Medicine, Doctorate of Medicine
New York Medical College (Fifth Pathway Program), Valhalla, New York
Training
Internship and Residency, Internal Medicine, University of Texas Health Science Center
Fellowship Cardiovascular Disease, University of Tennessee
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Goodall Witcher Hospital, Clifton, Texas
Hamilton General Hospital, Hamilton, Texas
Parkview Regional Hospital, Mexia, Texas
Faculty Appointments
Past Clinical Instructor of Medicine University of Texas Health Science Center
Clinical Instructor of Medicine (Volunteer Faculty) Family Medicine Residence Program
Administrative Appointments
President, Waco Cardiology Associates
Past Managing Partner, Waco Cardiology Associates
Medical Director of Cardiology Services, Providence Health Center
Director Cardiac Cath Lab, Providence Health Center
Awards
Aynesworth Award for Teaching Family Medicine Program, 1999
Best of Waco 2014, Cardiologist
Hands of the Healer Award, Nominee, 2020
Areas of Interest
Consultative Cardiology
Interventional Cardiology with primary emphasis in Peripheral Vascular Disease
Pulmonary Artery Hypertension
Preventative Cardiology
Cardiomyopathies in Athletes
Languages Spoken
Fluent in English and Spanish
Comment
I enjoy the privilege of being a physician and positively impacting patients’ lives.
Harvey R. Chen, M.D., F.A.C.C.
Education
Stanford University, Bachelor of Science with Honors, Biological Sciences
University of Texas Southwestern Medical School, Doctorate of Medicine
Training
Internship and Residency, Internal Medicine, University of Texas Southwestern Medical Center
Cardiovascular Disease Fellowship, University of Texas Medical Branch
COCATS Level II, Diagnostic Cardiac Catheterization and Nuclear Cardiology, The Methodist Hospital, Houston, TX
COCATS Level III certification, Echocardiography, The Methodist Hospital, Houston, TX
Clinical Cardiac Electrophysiology Fellowship, Scott & White Heart and Vascular Institute
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiac Electrophysiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Goodall Witcher Hospital, Clifton, Texas
Hamilton General Hospital, Hamilton, Texas
Publications
Strimel WJ. Koplik S, Chen HR, Song J, and Huang SKS. Safety and effectiveness of primary prophylaxiscardioverter-defibrillators in octogenarians. Presented at 15th World Congress on Heart Disease, Vancouver, BC, Canada, July 24-27, 2010. Manuscript in submission.
Valderrabano M, Chen HR, Sidhu JS, Rao L, Ling Y, and Khoury DS. Retrograde ethanol infusion in the vein of Marshall: regional left atrial ablation, vagal denervation, the feasibility in humans. Circ Arrhythmia Electrophysiol, published online December 8, 2008.
Chen, HR. Cellulitis, necrotizing fasciitis, subcutaneous abscess, and osteomyelitis. Parkland manual of inpatient medicine: an evidence-based approach, 2006.
Areas of Interest
Proficient in all aspects of arrhythmia management, including pacemaker and defibrillator implantation, cardiac resynchronization therapy, device troubleshooting, lead extraction, electrophysiology study, and ablation. Hobbies include spending time with family, outdoor sports, recreational piano, digital photography, travel, and home.
Donald S. (Buck) Cross, M.D., F.A.C.C.. M.H.C.D.S.
Education
St. Edward’s University, Bachelor of Arts, Summa Cum Laude, Biology
The University of Texas Medical Branch at Galveston, Doctorate of Medicine
Training
Internship, Internal Medicine – Emory University Hospital, Atlanta, GA
Residency, Internal Medicine, Scott & White Hospital/Texas A&M College of Medicine
Cardiovascular Disease Fellowship, Scott & White Hospital/Texas A&M College of Medicine
Interventional Cardiology Fellowship, Scott & White Hospital/Texas A&M College of Medicine
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Hamilton General Hospital, Hamilton, Texas
Parkview Regional Hospital, Mexia, Texas
Administrative Appointments
Managing Partner, Waco Cardiology Associates
Past National Medical Director, National Cardiovascular Partners
Past Medical Director, Waco Cardiology Cath Lab & ASC
Past Medical Director, Baylor Scott & White Medical Center – Hillcrest
Past President of the Medical Staff, Hillcrest Baptist Medical Center
Past Medical Director, Killeen EMS/Fire Department
Areas of Interest
Interventional Cardiology to include complex and high-risk interventions and treatment of chronic total coronary occlusions. Treatment of peripheral vascular disease.
Andrew K. Day, M.D., F.A.C.C.
Education
Baylor University, Bachelor of Science, Biology
University of Texas Health Science Center, Doctorate of Medicine
Training
Internship and Residency, Internal Medicine, University of Texas Health Science Center
Cardiovascular Disease Fellowship, University of Texas Health Science Center
Interventional Cardiology Fellowship – University of Medicine and Dentistry of New Jersey / Robert Wood Johnson Medical School at Camden
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified American Board of Internal Medicine, Interventional Cardiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
American Medical Association
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Hamilton General Hospital, Hamilton, Texas
Parkview Regional Hospital, Mexia, Texas
Areas of Interest
Member, Highland Baptist Church
Enjoy traveling with my wife and three children when not working
Adam M. Falcone, M.D., F.A.C.C.
Education
Texas A&M University, Bachelor of Science, Summa Cum Laude, Biomedical Science
University of Texas Medical Branch, Doctorate of Medicine
Training
Internship and Residency, Internal Medicine, Baylor University Medical Center
Cardiovascular Disease Fellowship, Baylor University Medical Center
Interventional Cardiology Fellowship, Baylor University Medical Center
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
American Board of Internal Medicine, Interventional Cardiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Goodall Witcher Hospital, Clifton, Texas
Hamilton General Hospital, Hamilton, Texas
Hill Regional Hospital, Hillsboro, Texas
Parkview Regional Hospital, Mexia, Texas
Areas of Interest
General Cardiology
Interventional Cardiology
Heart Failure
Valvular Disease
TAVR
Peripheral Vascular Disease
A-Fib
William R. Pitts, M.D., F.A.C.C.
Education
Baylor University, Bachelor of Science
University of Texas Southwestern Medical School, Doctorate of Medicine
Training
Internship and Residency, Internal Medicine, University of Texas Southwestern Medical School Affiliated Hospitals
Cardiovascular Disease Fellowship – University of Texas Southwestern Medical School Affiliated Hospitals
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
American Board of Internal Medicine, Interventional Cardiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Texas Chapter of the American College of Cardiology
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center– Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Goodall Witcher Hospital, Clifton, Texas
Hamilton General Hospital, Hamilton, Texas
Hill Regional Hospital, Hillsboro, Texas
Parkview Regional Hospital, Mexia, Texas
Original Publications
Preoperative left ventricular peak systolic pressure/end-systolic volume ratio and functional status following valve surgery in patients with mitral regurgitation and enlarged end-systolic volumes. Pitts WR, Lange RA, Cigarroa JE, Hillis LD. Am J Cardiol. 1997 Jun 1;79(11):1493-7.
The “open artery hypothesis” in survivors of myocardial infarction. Pitts WR, Cigarroa JE, Lange RA, Hillis LD. Clin Cardiol. 1997 Jun;20(6):522-4. Review.
Cocaine-induced myocardial ischemia and infarction: pathophysiology, recognition, and management. Pitts WR, Lange RA, Cigarroa JE, Hillis LD. Prog Cardiovasc Dis. 1997 Jul-Aug;40(1):65-76. Review.
Repeat coronary angiography in patients with chest pain and previously normal coronary angiogram. Pitts WR, Lange RA, Cigarroa JE, Hillis LD. Am J Cardiol. 1997 Oct 15;80(8):1086-7.
Tricuspid and Pulmonic Valve Disease Pitts WR, Hillis LD. In Current Practice of Medicine, Edited by Alpert JS. Philadelphia: Current Medicine, Inc. 1998: 561-566
Effects of the intracoronary infusion of cocaine on left ventricular systolic and diastolic function in humans. Pitts WR, Vongpatanasin W, Cigarroa JE, Hillis LD, Lange RA. Circulation. 1998 Apr 7;97(13):1270-3.
Coronary arterial anatomy in patients with left ventricular systolic dysfunction without chest pain or previous myocardial infarction. Pitts WR, Lange RA, Hillis LD, Cigarroa JE. Am J Cardiol. 1998 Dec 15;82(12):1530-1, A7.
Predictive value of prominent right atrial V waves in assessing the presence and severity of tricuspid regurgitation. Pitts WR, Lange RA, Cigarroa JE, Hillis LD. Am J Cardiol. 1999 Feb 15;83(4):617-8, A10.
Platelet glycoprotein IIb/IIIa receptor blockade: lessening the risk of coronary interventions. Pitts WR, Lange RA. Thromb Haemost. 1999 Sep;82 Suppl 1:136-8. Review.
Valvular Heart Disease Pitts, WR, Hillis LD. in Hospital Medicine, edited Wachter, RM, Goldman L, Hollander H. Philadelphia: Lippincott Williams & Williams 2000: 251-261
Tricuspid and Pulmonic Valve Disease Pitts WR, Hillis LD. in Cardiology for the Primary Care Physician, Edition 3. Edited by Alpert JS. Philadelphia: Current Medicine, Inc. 2001: 223-228
Charles A. Shoultz, III, M.D., F.A.C.C.
Education
Baylor University, Bachelor of Arts, Chemistry
University of Texas Medical School, Doctorate of Medicine
Training
Internship and Residency, Internal Medicine, Mayo Graduate School of Medicine
Cardiovascular Disease Fellowship, Emory University School of Medicine
Interventional Cardiology Fellowship, Emory University School of Medicine
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
American Board of Internal Medicine, Interventional Cardiology, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center – Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Hamilton General Hospital, Hamilton, Texas
Parkview Regional Hospital, Mexia, Texas
Interests
Interventional Cardiology; including angioplasty, coronary Arthrectomy, laser angioplasty, intracoronary stent placement and intravascular ultrasound.
Heart Failure; including acute and chronic management, post-transplantation management and myocardial biopsy.
Peripheral Vascular Disease; including invasive, non-invasive assessment and percutaneous revascularization.
Shawn J. Skeen, M.D., F.A.C.C.
Education
Baylor University, Bachelor of Arts, Psychology
Texas Christian University, Pre-medical Sciences
Texas A&M University Health Science Center College of Medicine, Doctorate of Medicine
Training
Internship and Residency, Internal Medicine, Texas A&M University Health Science Center/ Scott & White Memorial Hospital
Cardiovascular Disease Fellowship, Texas A&M University Health Science Center/Scott & White Memorial Hospital
Certifications
American Board of Internal Medicine, Diplomate
American Board of Internal Medicine, Cardiovascular Disease, Board Certified
Professional Associations
American College of Cardiology, Fellow
Texas Medical Association Member
McLennan County Medical Society
Hospital Affiliations
Ascension Providence Health Center, Waco, Texas
Baylor Scott & White Medical Center– Hillcrest, Waco, Texas
Coryell Memorial Hospital, Gatesville, Texas
Hamilton General Hospital, Hamilton, Texas
Parkview Regional Hospital, Mexia, Texas
Interests
Primary Prevention (Preventative Cardiology)
Nutrition
Heart Failure
Heart Disease
Valvular Heart Disease
Heart Rhythm Management