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Memorial Hermann Medical Group Internal Medicine & Endocrinology Texas Medical Center

Memorial Hermann Medical Plaza
6400 Fannin Street, Suite 2015
Houston, TX 77030

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Meet The Internal Medicine & Endocrinology Texas Medical Center Medical Providers

Berkman

Dr. Norman Berkman, M.D.
Internal Medicine

Esper

Dr. Nancy Esper, M.D.
Internal Medicine

Dr. Ruth Pan

Dr. Ruth Pan, M.D.
Internal Medicine

ScheduleNow Memorial Hermann Medical Group

Dr. Michael Perdon

Dr. Michael Perdon, M.D.
Internal Medicine

ScheduleNow Memorial Hermann Medical Group

Dr. Tiana Shiver

Dr. Tiana Shiver, M.D.
Endocrinology

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About Your MHMG Internal Medicine & Endocrinology Texas Medical Center Clinic

Memorial Hermann Medical Group (MHMG) Internal Medicine & Endocrinology Texas Medical Center Clinic provides highest-quality primary care for patients in the Inner Loop and Texas Medical Center areas.

Our internists and endocinology specialists focus on precise diagnosis and up-to-date treatment, but the heart of our practice is caring and empathetic relationships with patients of all ages – newborns to seniors.

Why should MHMG be your first choice for health care? As an MHMG Internal Medicine & Endocrinology Texas Medical Center patient, you have access to:

  • State-of-the-art primary care, diagnosis and treatment in a centrally located doctor's office for patients in the Inner Loop, West University, Hermann Park, Museum District, Rice Village, Braeswood, Bellaire and TMC
  • The wealth of clinical resources and medical providers supplied by the Memorial Hermann Medical Group – one of the Houston area’s largest and most experienced physician networks
  • MHMG’s convenient 24/7 online patient portal

Our highly experienced endocrinology staff treats conditions that affect the endocrine system – the hormone-producing glands that regulate metabolism, growth, tissue function, reproduction and sexual function, sleep and moods – including metabolic dysfunction and diseases of the ovaries, pituitary, adrenal glands and thyroid.

Dr. Tiana Shiver earned her medical degree from the University of Texas Health Science Center at San Antonio and completed her internship and residency at Albany Medical Center in Albany, New York. She also completed a fellowship in clinical endocrinology at the National Institute of Diabetes, Digestive and Kidney Disease of the National Institutes of Health in Bethesda, Maryland.

Our physicians, who have years of experience in internal medicine and family medicine, focus on building long-lasting relationships with their patients. They are specially trained in diagnosis, treatment and prevention of disease and skilled in managing diabetes, hypertension, infectious diseases, kidney disorders and other chronic conditions.

Dr. Norman Berkman earned his medical degree at the University of Pittsburgh (Pennsylvania) where he finished his internship and residency. He completed a residency and fellowship in hematology and oncology at Baylor College of Medicine in Houston. Board certified in internal medicine, Dr. Berkman sees patients 15 and older.

Dr. Nancy Esper earned her medical degree from Damascus University Medical School in Damascus, Syria, and completed her residency at Michigan State University. Board certified in internal medicine and sleep medicine, Dr. Esper’s primary clinical interests are chronic, complicated medical disorders and sleep disorders. She cares for patients 16 years and older. She is fluent in Spanish, Arabic and Portuguese.

Dr. Ruth Pan is board certified in internal medicine and sees patients 18 and older. She deals with the prevention, diagnosis and treatment of many chronic diseases, including heart disease, high blood pressure and high cholesterol. Dr. Pan has special interests in preventative care and endocrinology conditions, and she also performs routine women’s health procedures.

Dr. Michael Perdon earned his medical degree from University of the East Ramon Magsaysay Memorial Medical Center College of Medicine in the Philippines, and he completed his residency at Weill Cornell University at The Methodist Hospital in Houston. Dr. Perdon is board certified in internal medicine and sees patients over the age of 16. He treats patients for acute episodic illnesses as well manage chronic diseases and conditions including diabetes and hypertension. He also sees patients for pre-operative consultations and travel medicine.

Memorial Herman Medical Group Internal Medicine & Endocrinology Texas Medical Center is located north of Loop 610 and NRG Stadium at the intersection of Fannin Dr. and Greenbriar Dr. in the Texas Medical Center.