Our Team

Our board-certified and fellowship-trained surgeons have performed thousands of procedures, pioneering new treatment and recovery approaches with results rarely matched nationwide.

Inova Schar Heart and Vascular at Inova Fairfax Medical Campus, where we perform our cardiac surgeries, is a high volume cardiac center that consistently receives the highest ratings for quality and superior patient outcomes.

Eric L. Sarin, MD

Section Chief, Adult Cardiac Surgery
Co-Director, Structural Heart and Valve Program
Co-Director, Cardiovascular Research

Alan M. Speir, MD

Director Emeritus, Cardiac Surgery
Senior Associate Director, Inova Schar Heart and Vascular
Director, ECMO Program
Director of Quality, Outcomes, and Clinical Excellence

Adult Cardiac Surgeons

Jama Jahanyar, MD, PhD
Jama Jahanyar, MD, PhD
Specialty
Thoracic and Cardiac Surgery
Years of Experience
24
Kathleen Petro, MD
Kathleen R. Petro, MD
Specialty
Thoracic and Cardiac Surgery
Clinical Interests
Adult Heart Surgery
Years of Experience
31
Liam Ryan, MD
Liam P. Ryan, MD
Specialty
Thoracic and Cardiac Surgery
Clinical Interests
Adult Heart Surgery
Years of Experience
22
Eric Sarin, MD
Eric L. Sarin, MD
Specialty
Thoracic and Cardiac Surgery
Clinical Interests
Adult Heart Surgery
Years of Experience
26
Ramesh Singh, MD
Ramesh Singh, MD
Specialty
Thoracic and Cardiac Surgery
Clinical Interests
Adult Heart Surgery
Years of Experience
24
Alan Speir, MD
Alan M. Speir, MD
Specialty
Thoracic and Cardiac Surgery
Clinical Interests
Adult Heart Surgery
Years of Experience
49
Daniel Tang, MD
Daniel G. Tang, MD
Specialty
Thoracic and Cardiac Surgery, Surgery
Years of Experience
25

Pediatric Cardiac Surgeons

Marcelo Cardarelli, MD
Marcelo G. Cardarelli, MD
Specialty
Thoracic and Cardiac Surgery
Clinical Interests
Children's Heart, Children's Heart Surgery
Years of Experience
43
Lucas Collazo, MD
Lucas R. Collazo, MD
Specialty
Thoracic and Cardiac Surgery, Congenital Cardiac Surgery
Clinical Interests
Children's Heart, Children's Heart Surgery
Years of Experience
35
James St. Louis, MD
James D. St. Louis, MD
Specialty
Congenital Cardiac Surgery, Thoracic and Cardiac Surgery
Years of Experience
32

Advanced Practice Providers

Sandra Bobba, FNP
Sandra L. Bobba, FNP
Specialty
Family Nurse Practitioner
Haena Bryant, FNP
Haena C. Bryant, FNP
Specialty
Family Nurse Practitioner
Liana Chen, FNP
Liana Chen, FNP
Specialty
Family Nurse Practitioner
Clinical Interests
Asthma, Diet Counseling, Physicals, Preventive Disease Care
Elizabeth Gill, PA
Elizabeth A. Gill, PA
Specialty
Physician Assistant
Natalie Grieb, FNP
Natalie M. Grieb, FNP
Specialty
Family Nurse Practitioner
Kathryn Jolda, FNP
Kathryn Jolda, FNP
Specialty
Family Nurse Practitioner
Jamie Keith, NP
Jamie T. Keith, NP
Specialty
Nurse Practitioner
Yanbei Zhao, NP
Yanbei Zhao, NP
Specialty
Nurse Practitioner