Continuity of care

One team, wherever you are cared for

Our physicians and nurse practitioners care for you in the clinic, at Houston Methodist and Baylor St. Luke's, and on the phone, so you see familiar faces at every step.

President

George Younis, MD, FACC, FSCAI

General and Interventional Cardiology

Part of our team since 2006

Education: Brown University – Undergraduate
UT Southwestern Medical School – Medical School
Tufts / New England Medical Center – Residency
Fellowships: Baylor / Texas Heart Institute – General Cardiology
Baylor / Texas Heart Institute – Interventional Cardiology
Board certified: Internal Medicine, Cardiology, Interventional Cardiology
Current roles: Program Director, Texas Heart Institute Interventional Cardiology Fellowship
Clinical Associate Professor, Department of Medicine, Baylor College of Medicine (voluntary faculty)
Previous roles: Associate Program Director, Texas Heart Institute General Cardiology Fellowship
Medical Director of PCI and STEMI Services, Baylor St. Luke's
Teaching: Dr. Younis has been involved in training more than 120 cardiology fellows who now practice all over the world
Hospitals: Houston Methodist and Baylor St. Luke's
Areas of expertise: Coronary artery disease, coronary stenting, valvular heart disease, hypertension, rhythm disorders, cholesterol management
Outside the office: Loves photography and spending time with family
Fun fact: Was born at St. Luke's and, as an infant, slept in a repurposed dresser drawer in a medical center dorm

Numan Khan, MD, FACC

General and Interventional Cardiology

Part of our team since 2022

Education: Texas Christian University – Undergraduate
Baylor College of Medicine – Medical School
Johns Hopkins Hospital – Residency
Fellowships: Baylor / Texas Heart Institute – General Cardiology
Baylor / Texas Heart Institute – Interventional Cardiology
Board certified: Internal Medicine, Cardiology, Interventional Cardiology
Hospitals: Houston Methodist and Baylor St. Luke's
Areas of expertise: Coronary artery disease, interventional cardiology, structural heart disease, peripheral arterial disease, valvular heart disease, hypertension, rhythm disorders, cholesterol management
Outside the office: Enjoys gardening with Texas native plants and traveling to see naturally beautiful places
Fun fact: Earned first chair tenor 1 on making the Texas All-State Choir a second time in high school, and today often sings at friends' weddings

Matthew Bruce, MD

General Cardiology and Cardiac Imaging

Part of our team since 2025

Education: Texas A&M University – Undergraduate
Baylor College of Medicine – Medical School
Northwestern University – Residency
Fellowship: UTHealth Houston – General Cardiology
Board certified: Internal Medicine, Cardiology
Hospitals: Houston Methodist and Baylor St. Luke's
Areas of expertise: Prevention of heart disease, valvular heart disease, hypertension, rhythm disorders, cholesterol management, echocardiography, cardiac PET imaging

Care team

Our nurse practitioners

Our nurse practitioners are a vital part of our clinical team, working alongside our physicians in the clinic, at the hospital, and with patient messages and phone calls.

Carolyn Giveon, NP

Nurse Practitioner

Part of our team since 2004

Education: UTHealth Houston – Master of Science in Nursing
Barry University – Bachelor of Science in Nursing
University of Florida – Bachelor of Science in Health Science Education

Marissa Bautista, NP

Nurse Practitioner

Part of our team since 2023

Education: UTHealth Houston – Master of Science in Nursing, Adult Gerontology Acute Care Nurse Practitioner
UT Austin – Bachelor of Science in Nursing
Outside the office: Loves to travel, eat sushi, and spend time with her family
Fun fact: Born in Colorado, and a competitive dancer for over 10 years

Alyssa Robinson, NP

Nurse Practitioner

Part of our team since 2024

Education: UTHealth Houston – Master of Science in Nursing
UTHealth Houston – Bachelor of Science in Nursing
Outside the office: Enjoys gardening, softball, pickleball, and spending time with family, a dog, and a cat
Fun fact: Grew up surrounded by reptiles and other exotic animals

Office team

Our practice manager

Lisa keeps our practice running smoothly every day, so our team can focus on you.

Lisa Gaspard

Practice Manager

Part of our team since 2022

Education: University of Oklahoma – Bachelor of Business Administration
Outside the office: Loves baking: sourdough chocolate chip cookies are a favorite among family and friends
Fun fact: An avid scuba diver: some of the best adventures happen underwater

We would love to care for you

Call our office during business hours, and we'll help you schedule time with one of our physicians.

(713) 790-0400