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Memorial Hermann Medical Group Internal Medicine & Endocrinology Texas Medical Center

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  • Mon: 8:00am-5:00pm
  • Tue: 8:00am-5:00pm
  • Wed: 8:00am-5:00pm
  • Thu: 8:00am-5:00pm
  • Fri: 8:00am-5:00pm

General Information

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 endocrinology 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.

Physicians

  • Dr. Norman L. Berkman, MD

    Internist

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    Dr. Norman L. Berkman, MD

    Internist

    Gender

    Male

    Specialties

    Internal Medicine, Primary Care

    Medical Education

    University of Pittsburgh - Student Affairs 1963

    Residency

    Baylor College of Medicine - Internal Medicine 1968

    Fellowship

    Baylor College of Medicine - Graduate Medical Education 1969

    Cities Served

    Bellaire, Galena Park, Houston, Missouri City

  • Dr. Nancy Jamil Esper, MD

    Internist

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    Dr. Nancy Jamil Esper, MD

    Internist

    Gender

    Female

    Specialties

    Internal Medicine, Sleep Medicine, Primary Care

    Medical Education

    Damas Hospital 1995

    Residency

    Michigan State University-GME 2001

    Cities Served

    Bellaire, Galena Park, Houston, Missouri City

  • Dr. Ruth Lo Pan, MD

    Internist

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    Dr. Ruth Lo Pan, MD

    Internist

    Gender

    Female

    Specialties

    Internal Medicine, Primary Care

    Medical Education

    UT Southwestern Medical School 2009

    Residency

    University of California San Diego - Student Affairs 2012

    Cities Served

    Bellaire, Galena Park, Houston, Missouri City

  • Dr. Michael Arden Gomez Perdon, MD

    Internist

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    Dr. Michael Arden Gomez Perdon, MD

    Internist

    Gender

    Male

    Specialties

    Internal Medicine, Primary Care

    Medical Education

    University of The East Ramon Magsasay Memo Med Ctr 2003

    Residency

    Houston Methodist Hospital-Surgery 2010

    Cities Served

    Bellaire, Galena Park, Houston, Missouri City

  • Dr. Tiana M. Shiver, MD

    Endocrinologist

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    Dr. Tiana M. Shiver, MD

    Endocrinologist

    Gender

    Female

    Specialties

    Endocrinology

    Medical Education

    University of Texas at San Antonio - GME 1986

    Residency

    Albany Medical Center - Graduate Medical Education 1988

    Fellowship

    National Institute of Health 1992

    Cities Served

    Bellaire, Galena Park, Houston, Missouri City

Parking

Convenient parking is available in several garages near Memorial Hermann-TMC:

  • Memorial Hermann Medical Plaza Garage – The Memorial Hermann Medical Plaza Garage, located directly across Fannin Street from the hospital, has Skybridge access to the hospital. Self-parking is accessible from the southern entrances of the garage off both Main Street and Fannin Street.
  • University of Texas Professional Building Garage – Parking is also available in the University of Texas Professional Building Garage adjacent to the Medical Plaza, located between Fannin and Main Streets.
  • TMC Garage 4 – TMC Garage 4 is accessible from both Fannin and Cambridge streets and provides visitors with access to the hospital.

Rates vary according to the garage; pay stations are conveniently located so that you may pay first before you leave. Please check with the specific hospital area/unit to determine which parking area is most convenient and accessible. Click here to view a list of recommended places to park for the various clinics and programs at the campus.

Hospital Valet:
Valet access is available off of Fannin Street, with access to the Fannin entrance of Hospital (Cullen Pavilion).

  • Monday to Friday: 5:30 a.m.-9:30 p.m.
  • Saturday to Sunday: 8 a.m.-9:30 p.m.
  • Flat rate of $15 per day

Handicapped Parking:
Handicapped Parking is available in each Texas Medical Center garage. For more information about hospital parking, please call (713) 704-2027.

Getting to and Around the Hospital:
Clearly marked directional signage inside and outside the hospital helps patients and guests find their way easily as they move through the facility. Campus maps and hospital floor plans are available at the Information Desks located at the Cullen Pavilion entrance and the Robertson Pavilion entrance, from the concierge located in the Memorial Hermann Medical Plaza across the sky bridge from Memorial Hermann-TMC, at various wall kiosks throughout the hospital and in Volunteer Services in the Cullen Pavilion. See below for commonly requested routes.