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Juan M. Escobar, MD, MPH, has over 27 years of experience in practicing cardiology. He is proud to bring his extensive experience to the team at AssociatesMD, where he sees patients from the office locations in Plantation and Weston, Florida. 

Dr. Escobar earned his medical degree at the University of Texas Southwestern Medical School in Dallas. He completed his internal medicine residency and fellowship at the same institution. Dr. Escobar achieved his board certification in Internal Medicine and Cardiovascular Diseases and entry to the American College of Cardiology as a Fellow. 

Following his training, Dr. Escobar began his medical career in Dallas, where he initially worked as an Instructor of Medicine and later as an attending physician at Baylor Hospital. 

For five years, he was part of the Congestive Heart Failure and transplant service providing care to hospital patients and outpatients. He then moved to El Paso, Texas, where he practiced non-interventional cardiology for 20 years providing medical services in a medically underserved community. 

In 2019, Dr. Escobar began a personal goal of obtaining a Master of Public Health online at George Washington University with an emphasis on global health, a program he graduated from in August 2021. In 2022, he began a sabbatical year to allow time for volunteer work. 

For two months, he worked at the World Medical Missions in Kenya at the Tenwek Hospital and traveled to his native Colombia. Before joining AssociatesMD in July 2023, he worked for three months in a temporary capacity at Valley Verde Medical Center in Cottonwood, Arizona.

Dr. Escobar's background in various medical settings allows him to bring a unique perspective to the team at AssociatesMD, where he treats patients with all types of acute and chronic cardiovascular diseases. 

He has a special interest and expertise in the management of chronic heart failure. He believes in actively involving the patient and their family in the treatment of chronic heart disease, using education and counseling to bring about the best possible outcome. He makes a point to consider the complexity of the medicines and dietary changes necessary to achieve that goal.

A passionate learner and traveler, Dr. Escobar is keenly interested in learning and understanding different cultures and languages. He speaks Spanish fluently and has an advanced knowledge of French and some Italian. Lately, he has been focusing on learning a few phrases and words in Swahili. 

Outside of work, Dr. Escobar enjoys outdoor sports like running, cycling, and hiking and water sports like swimming, scuba, and sailing. He believes in setting a good example to his patients on the benefits of physical exercise in being instrumental to good overall health.

Matthew Teltser, MD, FACC, is a board-certified cardiologist with over 20 years of experience. His expertise includes diagnosing and treating cardiovascular diseases, lipidology, nuclear cardiology, and preventive cardiology. Dr.Teltser serves patients at AssociatesMD in Davie, Florida. 

His success with patients stems from his philosophy that patients must be active partners in their treatment. An open dialogue allows his patients to make informed decisions with a clearly defined joint plan.

A native of New Jersey, Dr. Teltser graduated with honors from Rutgers University in New Brunswick and earned the "Rutgers Scholar" title through a senior research project at Rutgers New Jersey Medical School in Newark, where he also completed medical school. 

After graduating, Dr. Teltser moved to Pennsylvania and became board-certified in internal medicine after training at the Medical College of Pennsylvania in Philadelphia. During his fourth year at MCP, Dr. Teltser was an internal medicine instructor while completing a clinical pharmacology fellowship. He continued his journey southward and completed his training in cardiology at the University of Florida Health Science Center Jacksonville.

In addition to his board certification in cardiology, he is a board-certified lipidologist (specialist in cholesterol disorders). He is also board-certified in nuclear cardiology, heart imaging techniques using radioisotopes (radioactive tracers). He is strongly interested in preventive cardiology and is a member of the ASPC (American Society of Preventive Cardiology).

As the medical director of A&R Research, Dr. Teltser supervises several medical research studies utilizing the latest drugs for treating cholesterol, hypertension, gout, COPD, and diabetes. He is dedicated to finding the highest level of care for his patients.

Joelle Estrada, MD, is a dedicated internal medicine physician with nearly two decades in practice. At AssociatesMD, Dr. Estrada provides patient-centered internal medicine in the Weston, Florida, office. 

Dr. Estrada was born in Manhattan, New York, and raised in Paraguay. She earned her medical degree at Universidad Nacional de Asunción in Asunción, Paraguay. 

Dr. Estrada completed her three-year internal medicine residency at Wyckoff Heights Medical Center in Brooklyn, New York. She stays up-to-date with her medical education to make sure her patients always receive optimal care.

Her focus is preventive care with a holistic, whole-patient approach. Dr. Estrada seeks to keep her patients healthy by combining body, mind, and soul, allowing them to enjoy the best possible quality of life. 

In her free time, Dr. Estrada’s favorite hobbies are watching her son play soccer, spending time with loved ones, and helping her children grow into happy and thoughtful people who respect others. 

Dr. Estrada is currently seeing patients in the Weston AssociatesMD office. 

Elisabeth Cohn-Gelwasser, MD, is a skilled and practiced Doctor of Medicine specializing in Primary Care and Internal Medicine. Dr. Cohn-Gelwasse sees patients at the multi-specialty medical group’s office in Davie, Florida. She takes time with each individual and consistently delivers high-quality, personalized care.

Dr. Cohn-Gelwasser has vast experience practicing as an internist and primary care physician. She has served the community practicing for nearly 30 years under Total Healthcare of South Florida, Inc. in Pembroke Pines.

She is certified by the American Board of Internal Medicine (ABIM) and works in association with Memorial Hospital Pembroke, Memorial Hospital West, and Memorial Regional Hospital.

Dr. Cohn-Gelwasser is renowned for providing thorough medical care for treating many conditions, including, but not limited to, high blood pressure, diabetes, high cholesterol, bronchitis, sinusitis, asthma, fever, and allergies.

She earned her medical degree from the University of Miami School of Medicine and subsequently completed her residency in internal medicine at the University of Maryland School of Medicine. 

Dr. Cohn-Gelwasser is an active member of the American Society of Bariatric Physicians and the American College of Physicians. She spends time as an adjunct professor at Nova College of Osteopathic Medicine, teaching medicine to future doctors.

Dr. Cohn-Gelwasser is an excellent communicator, which makes her skilled in building and strengthening relationships with diverse populations. 

She strives to make each patient’s visit a pleasant and pain-free experience. She clearly communicates with her patients and ensures they have all the information they need to make the right treatment choices. She is also flexible in working with the changing trends in medicine and the healthcare market.

Dr. Cohn-Gelwasser is an excellent communicator, which makes her skilled in building and strengthening relationships with diverse populations.

Amanda Berg, MD, is a skilled, board-certified internist at AssociatesMD in Plantation, Florida.

Originally from Michigan, Dr. Berg completed medical school in Detroit at Wayne State University, then moved to New Orleans for her intern year at Tulane. After Hurricane Katrina, she returned to Detroit and finished her residency training at the Detroit Medical Center. Following her training, she followed the rest of her family to Florida for the sun and warm weather.

Dr. Berg is passionate about metabolic syndrome, including elevated cholesterol, diabetes, and hypertension, often working closely with patients on diet and nutrition to help improve these medical conditions. She has been practicing medicine for over 10 years and feels comfortable treating many medical problems. She will go out of her way to ensure her patients always get 100% of her attention, and she treats every patient like family.

Dr. Berg lives with her three sons and husband. When not at work, you can find her traveling, exercising, and chasing her kids around.

Andrea J. Ramsay, MD, is a skilled primary care physician serving patients from the Plantation, Florida, office of AssociatesMD. 

Dr. Ramsay always had a dream and desire to become a special kind of doctor. Growing up in Miami, Florida, she attended the University of Florida and St. George’s University School of Medicine to begin a lifelong journey and dedication to the medical profession.

As Dr. Ramsay decided on her specialty, she pursued training in Surgery, Emergency Medicine, Trauma, Obstetrics and Gynecology, Plastic Surgery, and then Family Medicine – Family Medicine became her true calling because she could do a little bit of everything.

After spending a year in Buffalo, New York, for a Family Medicine Internship, she returned home to complete her residency at the University of Miami. The Jackson Memorial Hospital experience allowed her to speak medical Spanish fluently. 

Since 2015, Dr. Ramsay has been with AssociatesMD. She has long-term patients who have followed her from the Pembroke Pines office because they feel she has saved and improved their lives in a significant manner and is compassionate in her care. Her patients feel safe and comfortable and appreciate her experience in knowing what works best and shifting when a new approach is necessary. It is a partnership where both parties are involved in caring/healing because neither can happen independently.

Dr. Andrea J. Ramsay is board certified in Family Medicine and has over 25 years of experience. She continues training in Integrative Medicine, including Ayurvedic Medicine, supplements, and herbal medicine, and supports healing in mental health/cognitive behavioral therapy.

Dr. Ramsay’s 3 Basic Principles:

#1.: Golden Rule. “Treat the patient like you want to be treated and treat them like they are family.”
#2. Live a Healthy and Spiritual Life. Don’t just talk the talk but walk the walk.
#3. Keep it simple. “Medicine and Insurance companies can get very complicated. It is my job to be a wise filter. I am here to understand, help diagnose, and treat and provide the best quality care for each and every patient.”

Gershwin Blyden, MD, PhD, FCP, FACP, is a board-certified hematologist-oncologist and medical director of The Foundation for Sickle Cell Disease Research, with locations in Homestead, Orlando, Lakeland, Jacksonville, Belle Glade, Tallahassee, and Hollywood, Florida. With more than 40 years of diverse experience, Dr. Blyden is an esteemed physician in his field.

After receiving his bachelor’s degree in plant science from the Tuskegee Institute (now Tuskegee University) in Tuskegee, Alabama, in 1967, Dr. Blyden earned a PhD in pharmacology from prestigious Yale University in New Haven, Connecticut, in 1976. Just three years later, he also earned his medical doctorate cum laude from Yale University.

In 1985, Dr. Blyden completed an internal medicine internship at Massachusetts General Hospital in Boston, Massachusetts. That same year, he also finished his hematology/oncology and clinical pharmacology fellowship at Tufts Medical Center in Boston, Massachusetts. 

After graduating and completing his training, Dr. Blyden worked as an adjunct professor for the Barry University School of Podiatric Medicine in Miami Shores, Florida, an associate clinical professor of hematology and oncology at the University of Miami School of Medicine in Miami, Florida, and as an associate professor of clinical pharmacy and director of the Clinical Pharmacology Research Unit at Florida A&M University’s Miami location.

Today, Dr. Blyden is a leader in the field of sickle cell treatment, case management, and research. He provides comprehensive care for chronic diseases, with a special emphasis on sickle cell anemia. 

Dr. Blyden offers a variety of infusion services, school individualized education program (IEP) support, transcranial Doppler ultrasounds, and more.

Gershwin Blyden, MD, PhD, FCP, FACP, is a board-certified hematologist-oncologist and medical director of The Foundation for Sickle Cell Disease Research, with locations in Homestead, Orlando, Lakeland, Jacksonville, Belle Glade, Tallahassee, and Hollywood, Florida. With more than 40 years of diverse experience, Dr. Blyden is an esteemed physician in his field.

After receiving his bachelor’s degree in plant science from the Tuskegee Institute (now Tuskegee University) in Tuskegee, Alabama, in 1967, Dr. Blyden earned a PhD in pharmacology from prestigious Yale University in New Haven, Connecticut, in 1976. Just three years later, he also earned his medical doctorate cum laude from Yale University.

In 1985, Dr. Blyden completed an internal medicine internship at Massachusetts General Hospital in Boston, Massachusetts. That same year, he also finished his hematology/oncology and clinical pharmacology fellowship at Tufts Medical Center in Boston, Massachusetts. 

After graduating and completing his training, Dr. Blyden worked as an adjunct professor for the Barry University School of Podiatric Medicine in Miami Shores, Florida, an associate clinical professor of hematology and oncology at the University of Miami School of Medicine in Miami, Florida, and as an associate professor of clinical pharmacy and director of the Clinical Pharmacology Research Unit at Florida A&M University’s Miami location.

Today, Dr. Blyden is a leader in the field of sickle cell treatment, case management, and research. He provides comprehensive care for chronic diseases, with a special emphasis on sickle cell anemia. 

Dr. Blyden offers a variety of infusion services, school individualized education program (IEP) support, transcranial Doppler ultrasounds, and more.