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Daniel Tung, MD, is a board-certified physician on the team of endocrinology, diabetes, and thyroid specialists at The Endocrine Center. Dr. Tung serves patients at their Greater Heights and Main Campus locations in Houston, Texas.

Dr. Tung earned his medical degree from the University of Michigan in Ann Arbor in 2001. He then completed his residency in internal medicine at Baylor College of Medicine in Houston, Texas, and continued his training there with a fellowship in endocrinology and metabolism. Dr. Tung is board certified in endocrinology and metabolism as well as internal medicine.

Dedicated to patient education and personalized care, Dr. Tung makes sure to address all his patients’ questions, thoroughly interpret their lab tests, and easily explain their disease progression. He works extensively with thyroid nodules and other thyroid diseases, diabetes, osteoporosis, and general endocrine disorders. He also treats patients for fatigue, hair loss, and weight concerns, among other endocrine-related symptoms.

Education:

Medical School: University of Michigan, Ann Arbor, MI

Board Certification:

Endocrinology and Metabolism

Internal Medicine

Residency:

Internal Medicine: Baylor College of Medicine, Houston, TX

Fellowship:

Endocrinology and Metabolism – Baylor College of Medicine, Houston, TX

Umara Jamal, MD, is a board-certified physician with the team of endocrinology, diabetes, and thyroid specialists at The Endocrine Center. Dr. Jamal sees patients at the practice’s Main Campus and Greater Heights locations in Houston, Texas. She is board certified in internal medicine and board-eligible in endocrinology.

A Texas native, Dr. Jamal attended Baylor University in Waco, Texas, for her undergraduate studies. She holds a Master of Business Administration from Davenport University in Grand Rapids, Michigan, and completed her medical degree at Saba University School of Medicine in the Caribbean. Dr. Jamal finished her internal medicine residency at Chabert Medical Center in Houma, Louisiana, and completed her endocrinology fellowship at the University of Texas Medical Branch in Galveston. 

Dr. Jamal is excited to be back in Houston where her family currently resides. She understands that every patient is different, and her goal is to design individual treatment plans tailored to every patient’s unique needs. In her spare time, she loves spending time with her family and friends, traveling, and volunteering in her community.

Education:

Undergraduate: Baylor University, Waco, Texas

Medical School: Saba School of medicine, Saba, Caribbean, Netherlands

Master of Business Administration (MBA): Davenport University

Board Certification:

Internal Medicine

Endocrinology, Eligible

Residency:

Internal Medicine: Chabert Medical Center, Houma, Louisiana

Fellowship:

Endocrinology, Lipids, & Metabolism: University of Texas Medical Branch, Galveston, Texas

Maria Lee, MD, is a board-certified endocrinologist and internal medicine physician at The Endocrine Center in Houston, Texas. Dr. Lee joins the team of endocrinology, diabetes, and thyroid specialists at the practice’s Main Campus and Greater Heights office locations.

A Sugar Land native, Dr. Lee earned her undergraduate degree at the University of Texas at Austin, and her medical degree at Baylor College of Medicine in Houston. She then completed both her internal medicine residency and a fellowship in endocrinology, lipids, and metabolism at Emory University in Atlanta, Georgia.

Dr. Lee is excited to return to Houston to serve the patients in her community and be back with her family and friends. From her extensive training, Dr. Lee has an interest in many different endocrine conditions, including diabetes, thyroid disease, parathyroid disorders, osteoporosis, and others. 

In her spare time, Dr. Lee enjoys cooking, hiking, traveling, and dancing (swing and salsa).

Education:

Undergraduate: University of Texas at Austin

Medical School: Baylor College of Medicine

Board Certification:

Internal Medicine

Endocrinology

Residency:

Internal Medicine: Emory University, Atlanta, GA

Fellowship:

Endocrinology, Lipids, & Metabolism: Emory University, Atlanta, GA

Blogs:

Primary Hyperparathyroidism

Shelley Williamson, MD, is board-certified in endocrinology, diabetes, and metabolism, and in

internal medicine. She serves patients at the Greater Heights and Main Campus locations of

The Endocrine Center in Houston, Texas.

Dr. Williamson earned her undergraduate and master’s degree at the University of Texas at

Austin, and her medical degree at the University of Texas Health Science Center at San Antonio.

She continued at the University of Tennessee Health Science Center at Nashville for her

residency in internal medicine and completed a fellowship in endocrinology, diabetes, and

metabolism at Houston Methodist Hospital.

Dr. Williamson enjoys gardening, weight training, and spending time with her family.

Daniel Tung, MD, is a board-certified physician on the team of endocrinology, diabetes, and thyroid specialists at The Endocrine Center. Dr. Tung serves patients at their Greater Heights and Main Campus locations in Houston, Texas.

Dr. Tung earned his medical degree from the University of Michigan in Ann Arbor in 2001. He then completed his residency in internal medicine at Baylor College of Medicine in Houston, Texas, and continued his training there with a fellowship in endocrinology and metabolism. Dr. Tung is board certified in endocrinology and metabolism as well as internal medicine.

Dedicated to patient education and personalized care, Dr. Tung makes sure to address all his patients’ questions, thoroughly interpret their lab tests, and easily explain their disease progression. He works extensively with thyroid nodules and other thyroid diseases, diabetes, osteoporosis, and general endocrine disorders. He also treats patients for fatigue, hair loss, and weight concerns, among other endocrine-related symptoms.

Education:

Medical School: University of Michigan, Ann Arbor, MI

Board Certification:

Endocrinology and Metabolism

Internal Medicine

Residency:

Internal Medicine: Baylor College of Medicine, Houston, TX

Fellowship:

Endocrinology and Metabolism – Baylor College of Medicine, Houston, TX

Maria Lee, MD, is a board-certified endocrinologist and internal medicine physician at The Endocrine Center in Houston, Texas. Dr. Lee joins the team of endocrinology, diabetes, and thyroid specialists at the practice’s Main Campus and Greater Heights office locations.

A Sugar Land native, Dr. Lee earned her undergraduate degree at the University of Texas at Austin, and her medical degree at Baylor College of Medicine in Houston. She then completed both her internal medicine residency and a fellowship in endocrinology, lipids, and metabolism at Emory University in Atlanta, Georgia.

Dr. Lee is excited to return to Houston to serve the patients in her community and be back with her family and friends. From her extensive training, Dr. Lee has an interest in many different endocrine conditions, including diabetes, thyroid disease, parathyroid disorders, osteoporosis, and others. 

In her spare time, Dr. Lee enjoys cooking, hiking, traveling, and dancing (swing and salsa).

Education:

Undergraduate: University of Texas at Austin

Medical School: Baylor College of Medicine

Board Certification:

Internal Medicine

Endocrinology

Residency:

Internal Medicine: Emory University, Atlanta, GA

Fellowship:

Endocrinology, Lipids, & Metabolism: Emory University, Atlanta, GA

Blogs:

Primary Hyperparathyroidism

Christina Michaelis, MD, is a board certified physician specializing in endocrinology and metabolism at The Endocrine Center. Dr. Michaelis practices with the team of endocrinology, diabetes, and thyroid specialists at the practice’s Main Campus and Methodist West locations in Houston, Texas. 

Dr. Michaelis was born and raised in the Houston area and is happy to be serving the community in which she was raised. She completed her undergraduate studies at the University of Texas at Austin and her medical degree at the University of Texas Southwestern Medical School in Dallas. She continued at UT Southwestern Medical Center for her residency in internal medicine and later completed a fellowship in endocrinology and metabolism at Baylor College of Medicine in Houston, Texas.  

At The Endocrine Center, Dr. Michaelis enjoys treating patients with a wide variety of medical conditions, particularly diabetes, thyroid and parathyroid disease, and osteoporosis. She also has a special interest in thyroid nodules and thyroid cancer after spending a year during her fellowship doing research on thyroid nodules and thyroid cancer at MD Anderson Cancer Center.

Education:

Undergraduate: University of Texas at Austin

Medical School: University of Texas Southwestern Medical School

Board Certification:

Endocrinology and Metabolism

Residency:

Internal Medicine: University of Texas Southwestern Medical Center, Dallas, TX

Fellowship:

Endocrinology and Metabolism – Baylor College of Medicine, Houston, TX 

Blogs:

Thyroid Nodules

Umara Jamal, MD, is a board-certified physician with the team of endocrinology, diabetes, and thyroid specialists at The Endocrine Center. Dr. Jamal sees patients at the practice’s Main Campus and Greater Heights locations in Houston, Texas. She is board certified in internal medicine and board-eligible in endocrinology.

A Texas native, Dr. Jamal attended Baylor University in Waco, Texas, for her undergraduate studies. She holds a Master of Business Administration from Davenport University in Grand Rapids, Michigan, and completed her medical degree at Saba University School of Medicine in the Caribbean. Dr. Jamal finished her internal medicine residency at Chabert Medical Center in Houma, Louisiana, and completed her endocrinology fellowship at the University of Texas Medical Branch in Galveston. 

Dr. Jamal is excited to be back in Houston where her family currently resides. She understands that every patient is different, and her goal is to design individual treatment plans tailored to every patient’s unique needs. In her spare time, she loves spending time with her family and friends, traveling, and volunteering in her community.

Education:

Undergraduate: Baylor University, Waco, Texas

Medical School: Saba School of medicine, Saba, Caribbean, Netherlands

Master of Business Administration (MBA): Davenport University

Board Certification:

Internal Medicine

Endocrinology, Eligible

Residency:

Internal Medicine: Chabert Medical Center, Houma, Louisiana

Fellowship:

Endocrinology, Lipids, & Metabolism: University of Texas Medical Branch, Galveston, Texas

Board-certified endocrinologist Prashant Koshy, MD, serves on the team of endocrinology, diabetes, and thyroid specialists at The Endocrine Center. Dr. Koshy sees patients out of the practice’s Main Campus and Methodist West locations in Houston, Texas.

A native of New Orleans, Louisiana, Dr. Koshy completed his undergraduate education at the University of New Orleans. He then earned his medical degree from the Louisiana State University (LSU) School of Medicine in New Orleans. After graduating, Dr. Koshy completed an internal medicine residency through LSU in Baton Rouge. He also completed an endocrinology and metabolism fellowship at Baylor Scott and White through Texas A&M in Temple. He has been proud to call Texas his home for the last five years and is excited to be in the Houston area with his wife and children.

Dr. Koshy has expertise in treating a variety of endocrine conditions with clinical, evidence-based medical practices, particularly diabetes, pituitary disease, thyroid disease, parathyroid disease, and osteoporosis. He enjoys the challenge of diagnosing and treating endocrine conditions, as well as getting to know his patients beyond their disease progression.

Education:

Undergraduate: University of New Orleans

Medical: LSU School of Medicine in New Orleans

Board Certification:

Endocrinology

Residency:

Internal Medicine Residency: LSU Internal Medicine in Baton Rouge

Fellowship:

Endocrinology and Metabolism – Texas A&M/Baylor Scott and White, Temple, TX 

Blogs:

Hypercalcemia

Shelley Williamson, MD, is board-certified in endocrinology, diabetes, and metabolism, and in

internal medicine. She serves patients at the Greater Heights and Main Campus locations of

The Endocrine Center in Houston, Texas.

Dr. Williamson earned her undergraduate and master’s degree at the University of Texas at

Austin, and her medical degree at the University of Texas Health Science Center at San Antonio.

She continued at the University of Tennessee Health Science Center at Nashville for her

residency in internal medicine and completed a fellowship in endocrinology, diabetes, and

metabolism at Houston Methodist Hospital.

Dr. Williamson enjoys gardening, weight training, and spending time with her family.

Safa Ibrahim, MD, is board-certified in endocrinology, diabetes, and metabolism, as well as Internal Medicine. She practices out of the Main Campus and Methodist West locations of The Endocrine Center in Houston, Texas. 

Dr. Ibrahim has been calling Houston home for the past 10 years since she migrated to the US from Sudan to pursue her medical training. She earned her medical degree from The National Ribat University in Sudan before completing her internal medicine residency at Trumbull Memorial Hospital in Youngstown, Ohio, where she also served as a Chief Resident in her final year of residency. 

She returned to Texas for her fellowship training in endocrinology, diabetes, and metabolism at Texas A&M/Baylor Scott and White in Temple. Dr. Ibrahim also holds a public health certificate from The University of Texas in Houston.

Dr. Ibrahim believes that patient education makes a big impact in their treatment journey; that’s why she spends time explaining the disease process and how it can adversely affect our bodies. She is also aware that diabetes and most hormonal imbalances are life-long conditions, so she focuses on improving a patient’s quality of life while optimizing and simplifying their treatment regimen. 

When she’s not in the office, Dr. Ibrahim likes traveling with her husband and three kids to explore different cultures and food. She also enjoys baking.

Christina Michaelis, MD, is a board certified physician specializing in endocrinology and metabolism at The Endocrine Center. Dr. Michaelis practices with the team of endocrinology, diabetes, and thyroid specialists at the practice’s Main Campus and Methodist West locations in Houston, Texas. 

Dr. Michaelis was born and raised in the Houston area and is happy to be serving the community in which she was raised. She completed her undergraduate studies at the University of Texas at Austin and her medical degree at the University of Texas Southwestern Medical School in Dallas. She continued at UT Southwestern Medical Center for her residency in internal medicine and later completed a fellowship in endocrinology and metabolism at Baylor College of Medicine in Houston, Texas.  

At The Endocrine Center, Dr. Michaelis enjoys treating patients with a wide variety of medical conditions, particularly diabetes, thyroid and parathyroid disease, and osteoporosis. She also has a special interest in thyroid nodules and thyroid cancer after spending a year during her fellowship doing research on thyroid nodules and thyroid cancer at MD Anderson Cancer Center.

Education:

Undergraduate: University of Texas at Austin

Medical School: University of Texas Southwestern Medical School

Board Certification:

Endocrinology and Metabolism

Residency:

Internal Medicine: University of Texas Southwestern Medical Center, Dallas, TX

Fellowship:

Endocrinology and Metabolism – Baylor College of Medicine, Houston, TX 

Blogs:

Thyroid Nodules

Board-certified endocrinologist Prashant Koshy, MD, serves on the team of endocrinology, diabetes, and thyroid specialists at The Endocrine Center. Dr. Koshy sees patients out of the practice’s Main Campus and Methodist West locations in Houston, Texas.

A native of New Orleans, Louisiana, Dr. Koshy completed his undergraduate education at the University of New Orleans. He then earned his medical degree from the Louisiana State University (LSU) School of Medicine in New Orleans. After graduating, Dr. Koshy completed an internal medicine residency through LSU in Baton Rouge. He also completed an endocrinology and metabolism fellowship at Baylor Scott and White through Texas A&M in Temple. He has been proud to call Texas his home for the last five years and is excited to be in the Houston area with his wife and children.

Dr. Koshy has expertise in treating a variety of endocrine conditions with clinical, evidence-based medical practices, particularly diabetes, pituitary disease, thyroid disease, parathyroid disease, and osteoporosis. He enjoys the challenge of diagnosing and treating endocrine conditions, as well as getting to know his patients beyond their disease progression.

Education:

Undergraduate: University of New Orleans

Medical: LSU School of Medicine in New Orleans

Board Certification:

Endocrinology

Residency:

Internal Medicine Residency: LSU Internal Medicine in Baton Rouge

Fellowship:

Endocrinology and Metabolism – Texas A&M/Baylor Scott and White, Temple, TX 

Blogs:

Hypercalcemia

Safa Ibrahim, MD, is board-certified in endocrinology, diabetes, and metabolism, as well as Internal Medicine. She practices out of the Main Campus and Methodist West locations of The Endocrine Center in Houston, Texas. 

Dr. Ibrahim has been calling Houston home for the past 10 years since she migrated to the US from Sudan to pursue her medical training. She earned her medical degree from The National Ribat University in Sudan before completing her internal medicine residency at Trumbull Memorial Hospital in Youngstown, Ohio, where she also served as a Chief Resident in her final year of residency. 

She returned to Texas for her fellowship training in endocrinology, diabetes, and metabolism at Texas A&M/Baylor Scott and White in Temple. Dr. Ibrahim also holds a public health certificate from The University of Texas in Houston.

Dr. Ibrahim believes that patient education makes a big impact in their treatment journey; that’s why she spends time explaining the disease process and how it can adversely affect our bodies. She is also aware that diabetes and most hormonal imbalances are life-long conditions, so she focuses on improving a patient’s quality of life while optimizing and simplifying their treatment regimen. 

When she’s not in the office, Dr. Ibrahim likes traveling with her husband and three kids to explore different cultures and food. She also enjoys baking.

Todd Kielman, PA-C, DMSc, MPAS, is a physician assistant with over 20 years of experience in orthopedics, primary care, urgent care, emergency medicine, trauma management, and men’s health. At Regenerative Sports & Medicine in Santa Monica, CA, Todd works closely with Dr. McClain to deliver exceptional patient outcomes.   

Todd earned his bachelor’s degree and master’s degree in physician assistant studies at The University of Nebraska–Lincoln. He then went on to complete his doctorate in medical science at A.T. Still University School of Osteopathic Medicine. 

Throughout his career in healthcare, Todd has worked with in a variety of roles, including serving as a sexual medicine and hormone specialist. He is skilled in treating hormone imbalance, erectile dysfunction, overactive bladder, hypogonadism, and weight management issues. While Todd enjoys helping patients enhance their health and wellness with therapies like HRT, he can also address chronic conditions such as diabetes and hypertension. 

With his clinical experiences, Todd brings immense value to the Regenerative Sports & Medicine team. Additionally, he serves on the board of directors for PAs for Tomorrow and San Antonio Lifetime Recovery.

Todd has proudly served his country for over 25 years in the United States Army. During his service, he was awarded numerous prestigious awards, such as the Bronze Star Medal, Meritorious Service Medal, Army Commendation Medal with “V” for Valor under fire, Army Achievement Medal, Global War on Terrorism Expeditionary Medal, Iraq Campaign Medal, Afghan Campaign Medal, and the NATO Medal. 

As a highly trained physician assistant, Todd is happy to provide his expertise at Regenerative & Sports Medicine to help patients find relief from pain, limited mobility, and other health issues that prevent them from living their life to the fullest.