Current Fellows

Cardiology Fellows 2025-2026

Front (L to R): Jerin George, DO (EP), Charles Warner, MD (CVD), Rachel Wester, DO (AHFTC), Sapan Bhuta, MD (CVD/EP), Melissa Miller, DO (IC), Joshua Mueller, MD (CVD), Andrew Pannabecker, MD (CVD)
Back (L to R):
Zachary Gilbert, MD (IC), Luke Landrigan, MD (CVD), Eric Bain, MD (CVD), Blaine Massey, DO (CVD), Derek Mounsey, DO (CVD Chief), Volodymyr Oliynyk, DO (EP)

Current Fellow

Rachel Wester, DO

Cardiology: Ohio Health, OH
IM Residency: Ascension St Vincent Indianapolis, IN
Medical School: University of Pikeville Kentucky College of Medicine, KY
Undergraduate: University of Kentucky, KY
I completed my internal medicine residency at St. Vincent and as my training progressed, I knew that I wanted to return to complete an advanced heart failure fellowship. I recognized that the commitment to teaching and the quality education were truly unmatched. I love the area, the healthy work life balance and friendliness and helpfulness of the co-fellows and attendings. I look forward to my year here, and am confident that I will receive the best training and will be prepared for a successful career. In my free time I enjoy being outside at the lake and wake surfing, as well as visiting as many farmers markets as possible.

Alumni

Omar H. Jawaid, MD

Class of 2022 - 2023
Adv Heart Failure: Ascension St. Vincent, Indianapolis, IN 
Cardiovascular Fellowship: Indiana University School of Medicine, Indianapolis, IN 
IM Residency: University of Colorado, Denver, CO
Medical School: Chicago Medical School Rosalind Franklin, Chicago, IL

Kathleen L. Morris, DO

Class of 2020 - 2021
Adv Heart Failure:
Ascension St. Vincent Hospital, Indianapolis
Cardiology: Ascension St. Vincent Hospital, Indianapolis
IM Residency: Indiana University SoM, Indianapolis
Medical School: Lake Erie College of Osteopath Med, Erie, PA
Undergraduate: Clarkson University, Potsdam, NY

Affan Haleem, MD

Class Of 2019 – 2020
Interventional Cardiology: New York-Presbyterian, Brooklyn Methodist Hospital
Adv Heart Failure : Ascension St. Vincent Hospital, Indpls.
Cardiology : Lehigh Valley Health Network, Allentown, PA
IM Residency : Winthrop University Hospital, Mineola, NY
Medical School : Stony Brook Univ. School of Medicine
Undergraduate : New York University, NYC

Elizabeth M. Riddell, MD, PharmD

Class Of 2018 – 2019
Private Practice: St. Vincent/Ascension Health, Lafayette, IN
Cardiology: Washington University, St. Louis, MO
IM Residency: Vanderbilt University, Nashville, TN
Medical School: Indiana University SoM, Indpls.
Undergraduate: Purdue Univ. School of Pharmacy

Baqir A. Lakhani, D.O.

Class Of 2017 – 2018
Private Practice: Advanced Heart Failure Cardiologist, Wellstar Hospital, Atlanta, GA
Cardiology: Rowan Univ. School of Osteopathic Medicine, Cherry Hill, NJ
IM Residency: Swedish Covenant Hospital, Chicago, IL
Medical School: Kansas City Univ. of Medicine & Biosciences
Undergraduate: Benedictine University, Lisle, IL

Muhammad Waqas, M.D.

Class Of 2015 – 2016
Private Practice: St. Vincent Cardiovascular Institute, Little Rock, AR
Cardiology: Marshall University, Huntington, WV
IM Residency: New York Medical College, Valhalla, NY
Medical School: King Edward Medical College, Lahore, Pakistan

Lindsay M. Castle, D.O.

Class Of 2014 – 2015
Private Practice: The Heart Group of Lancaster General Health, PA
Cardiology: Ohio Health Doctors Hospital, Columbus
IM Residency: Ohio Health Doctors Hospital, Columbus
Medical School: Ohio University Heritage College of Osteopathic Medicine