Nykkia Sellers, APN
Endocrinologist
512 Graham
West Memphis, AR 72301
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Availability last updated 07/02/2025
Nykkia Sellers, APN
Endocrinologist
512 Graham
West Memphis, AR 72301
Dr. Sean P. Nikravan, MD, FACE, a board-certified endocrinologist and internal medicine specialist, has been providing expert endocrinology care in Newport Beach, California, since 2005. He treats patients 12 and up at his state-of-the-art hybrid concierge medical practice.
Taking an evidence-based and individualized approach to care, Dr. Nikravan specializes in diagnosing and treating conditions that involve the endocrine glands and the hormones they produce. He provides expert care for diabetes, pituitary disorders, thyroid disease, and pediatric growth disease.
At his practice, Dr. Nikravan also treats low testosterone, menopause, and osteoporosis. He also provides physician-supervised weight management.
Dr. Nikravan is an expert at performing in-office thyroid nodule biopsy procedures, completing more than 50,000 biopsies since 2005. Thyroid radiofrequency ablation (RFA), a non-surgical treatment for thyroid nodules and other thyroid-related conditions, is also a specialty of Dr. Nikravan.
After earning his Doctor of Medicine at the American University of the Caribbean School of Medicine in St. Maarten, Dr. Nikravan completed his internship and residency training in internal medicine at Northeastern Ohio Medical University in Rootstown, Ohio.
Dr. Nikravan relocated to Galveston, Texas, for his endocrinology fellowship training at the University of Texas Medical Branch. He then went on to complete an advanced fellowship at one of the top endocrine programs in the nation, Harbor-UCLA Medical Center, located in Los Angeles, California.
Dr. Nikravan is triple board-certified in endocrinology and metabolism, clinical lipidology, and internal medicine. He’s on-staff at Hoag Memorial Hospital in Newport Beach and well-known in the Orange County medical community, ranking as a Physician of Excellence in Endocrinology and Internal Medicine three years in a row by the Orange County Medical Association.
With Dr. Sean P. Nikravan, MD, FACE, patients can expect personalized care in a concierge setting. Call the office or book an appointment online today.
Dr. Sean Nikravan, MD
Endocrinologist
355 Placencia Ave
Suite 203
Newport Beach, CA 92663
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
Dr. Umara Jamal, MD
Endocrinologist
10837 Katy Freeway
Suite 200
Houston, TX 77079
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
Dr. Umara Jamal, MD
Endocrinologist
1631 N Loop W
Suite 625
Houston, TX 77008
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
Dr. Daniel Tung, MD
Endocrinologist
1631 N Loop W
Suite 625
Houston, TX 77008
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
Dr. Daniel Tung, MD
Endocrinologist
10837 Katy Freeway
Suite 200
Houston, TX 77079
Laura April Gago, MD, is a board-certified reproductive endocrinologist and infertility specialist, as well as the medical director of Gago Center for Fertility, with locations in Brighton, Lansing, and Ann Arbor, Michigan. Dr. Gago has been cultivating personalized fertility care for couples throughout the community since launching the practice in 2007.
After graduating from medical school at the University of California at San Diego, Dr. Gago and her husband decided to return to her native Ann Arbor to complete her obstetrics and gynecology residency at the University of Michigan.
Following her residency, Dr. Gago went on to complete a rigorous reproductive endocrinology and infertility fellowship at Wayne State University in Detroit, where she ultimately accepted an assistant clinical professor position. Just one year later, Dr. Gago became the University of Michigan In Vitro Fertilization Medical Director, during which time she developed the Fertility Preservation Program and the Donor Oocyte Program.
Dr. Gago’s goal was always to have the freedom to provide state-of-the-art fertility care and complementary wellness programs for couples trying to conceive. That’s why she launched Gago Center for Fertility nearly 18 years ago.
Since then, the practice has grown to serve more couples in the Brighton, Lansing, and Ann Arbor communities. In 2013, Dr. Gago opened Gago IVF, an IVF lab in a peaceful setting, so that couples can enjoy individualized fertility care in a comfortable environment.
Dr. Gago is passionate about helping couples start the family of their dreams. At Gago Center for Fertility, she can do just that.
Dr. Laura Gago, MD
Reproductive Endocrinologist
2250 Genoa Business Park Drive
Suite 110
Brighton, MI 48114
Laura April Gago, MD, is a board-certified reproductive endocrinologist and infertility specialist, as well as the medical director of Gago Center for Fertility, with locations in Brighton, Lansing, and Ann Arbor, Michigan. Dr. Gago has been cultivating personalized fertility care for couples throughout the community since launching the practice in 2007.
After graduating from medical school at the University of California at San Diego, Dr. Gago and her husband decided to return to her native Ann Arbor to complete her obstetrics and gynecology residency at the University of Michigan.
Following her residency, Dr. Gago went on to complete a rigorous reproductive endocrinology and infertility fellowship at Wayne State University in Detroit, where she ultimately accepted an assistant clinical professor position. Just one year later, Dr. Gago became the University of Michigan In Vitro Fertilization Medical Director, during which time she developed the Fertility Preservation Program and the Donor Oocyte Program.
Dr. Gago’s goal was always to have the freedom to provide state-of-the-art fertility care and complementary wellness programs for couples trying to conceive. That’s why she launched Gago Center for Fertility nearly 18 years ago.
Since then, the practice has grown to serve more couples in the Brighton, Lansing, and Ann Arbor communities. In 2013, Dr. Gago opened Gago IVF, an IVF lab in a peaceful setting, so that couples can enjoy individualized fertility care in a comfortable environment.
Dr. Gago is passionate about helping couples start the family of their dreams. At Gago Center for Fertility, she can do just that.
Dr. Laura Gago, MD
Reproductive Endocrinologist
2550 Dexter Ave
Ann Arbor, MI 48103
Laura April Gago, MD, is a board-certified reproductive endocrinologist and infertility specialist, as well as the medical director of Gago Center for Fertility, with locations in Brighton, Lansing, and Ann Arbor, Michigan. Dr. Gago has been cultivating personalized fertility care for couples throughout the community since launching the practice in 2007.
After graduating from medical school at the University of California at San Diego, Dr. Gago and her husband decided to return to her native Ann Arbor to complete her obstetrics and gynecology residency at the University of Michigan.
Following her residency, Dr. Gago went on to complete a rigorous reproductive endocrinology and infertility fellowship at Wayne State University in Detroit, where she ultimately accepted an assistant clinical professor position. Just one year later, Dr. Gago became the University of Michigan In Vitro Fertilization Medical Director, during which time she developed the Fertility Preservation Program and the Donor Oocyte Program.
Dr. Gago’s goal was always to have the freedom to provide state-of-the-art fertility care and complementary wellness programs for couples trying to conceive. That’s why she launched Gago Center for Fertility nearly 18 years ago.
Since then, the practice has grown to serve more couples in the Brighton, Lansing, and Ann Arbor communities. In 2013, Dr. Gago opened Gago IVF, an IVF lab in a peaceful setting, so that couples can enjoy individualized fertility care in a comfortable environment.
Dr. Gago is passionate about helping couples start the family of their dreams. At Gago Center for Fertility, she can do just that.
Dr. Laura Gago, MD
Reproductive Endocrinologist
1515 Lake Lansing Road
Suite F
Lansing, MI 48912
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.
Dr. Safa Ibrahim
Endocrinologist
10837 Katy Freeway
Suite 200
Houston, TX 77079
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.
Dr. Safa Ibrahim
Endocrinologist
18300 Katy Freeway
Suite 465
Houston, TX 77094
Mileah Panter, NP
Endocrinologist
215 West 29th
A
Kearney, NE 68845
The DOCS prioritizes patient care and decreases hospital admissions rates, improving patients’ overall health.
The practice uses technology and innovative medical treatments to help their patients achieve a better quality of life. Patients can anticipate a unique and modern medical environment at The DOCS that includes an in-house laboratory, ultrasound technicians, nuclear medicine, diagnostic testing, and nutrition services.
Their modern facilities also feature an in-house pharmacy, diabetic testing, lower extremity X-rays, cardiac nuclear testing, and a newly renovated cardiovascular diagnostic and revascularization lab.
Providing several aspects of care, The DOCS team includes multispecialty physicians, including vascular and limb preservation specialists, who focus on restoring blood flow and decreasing the risk of immobility and amputations.
With expertise in endocrinology, diabetes, thyroid complications, hormones, and weight loss, The DOCS has everything patients need to enjoy a high quality of life. Call or schedule an appointment online to learn more about the preventive care provided at The DOCS in Las Vegas, Nevada.
Dr. Asheesh Dewan
Pediatrician
6850 N Durango Drive
Suite 302
Las Vegas, NV 89149
The DOCS prioritizes patient care and decreases hospital admissions rates, improving patients’ overall health.
The practice uses technology and innovative medical treatments to help their patients achieve a better quality of life. Patients can anticipate a unique and modern medical environment at The DOCS that includes an in-house laboratory, ultrasound technicians, nuclear medicine, diagnostic testing, and nutrition services.
Their modern facilities also feature an in-house pharmacy, diabetic testing, lower extremity X-rays, cardiac nuclear testing, and a newly renovated cardiovascular diagnostic and revascularization lab.
Providing several aspects of care, The DOCS team includes multispecialty physicians, including vascular and limb preservation specialists, who focus on restoring blood flow and decreasing the risk of immobility and amputations.
With expertise in endocrinology, diabetes, thyroid complications, hormones, and weight loss, The DOCS has everything patients need to enjoy a high quality of life. Call or schedule an appointment online to learn more about the preventive care provided at The DOCS in Las Vegas, Nevada.
Dr. Asheesh Dewan
Pediatrician
8352 W Warm Springs Road
Suite 300
Las Vegas, NV 89113
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.
Dr. Shelley Williamson, MD
Endocrinologist
10837 Katy Freeway
Suite 200
Houston, TX 77079
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.
Dr. Shelley Williamson, MD
Endocrinologist
1631 N Loop W
Suite 625
Houston, TX 77008
Dr. Sarah Fishman is an endocrinologist in private practice in New York City. At her practice in Midtown Manhattan, she provides a wide range of endocrinology care and services.
After completing her medical and PhD degrees at Mount Sinai School of Medicine, she continued her training in Internal Medicine and Endocrinology at Lenox Hill Hospital. She is affiliated with Mount Sinai Hospital and Northwell Health Lenox Hill Hospital, where she serves as an associate professor. As part of her academic appointment, Dr. Fishman has conducted research studies on evaluating biomarkers, chemicals that can be detected by blood tests, to identify patients with diabetes who may be at higher risk of cardiovascular events. In addition, she has spearheaded projects to improve physician and nurse empathy towards patients with diabetes, and on the use of continuous glucose monitors in hospitalized patients.
Recently, Dr. Fishman served as the in-house endocrinologist at Lenox Hill Hospital at the peak of the COVID-19 pandemic, working alongside critical care physicians to develop new protocols for the management of COVID-19 related endocrine disorders. She continues to be a valued teacher and mentor to residents and endocrine fellows.
Outside of the office and hospital, Dr. Fishman is a devoted mother, wife, daughter, and friend. When not on call, she can often be found sleeping in, building crafts with her kids, working on DIY home improvement projects, and enjoying the parks of New York City. She is an active member of her synagogue community and is known among her friends and colleagues for her reliability and fortitude.
Dr. Sarah Fishman, MD PhD
Endocrinologist
133 East 58th St
Suite 1403
New York, NY 10022
Amer Budayr, MD
Endocrinologist
20700 Lake Chabot Rd
107
Castro Valley, CA 94546