Pediatric Endocrinology and Diabetes

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We provide care for infants, children, and adolescents with diabetes and other endocrine disorders. Care of endocrine disorders is a team effort, so we provide you and your child’s primary care physician with support, resources, and information you need to care for your child. Appointments are by physician referral only.

Services we provide include treatment of:

  • Adrenal disorders
  • Bone disorders (rickets, osteoporosis, osteomalacia, etc.)
  • Calcium disorders
  • Diabetes
  • Disorders of growth
  • Disorders of puberty
  • Endocrine conditions acquired during cancer therapy
  • Endocrine needs for girls with Turner Syndrome
  • Growth evaluation and treatment for children with Prader-Willi Syndrome
  • Pituitary disorders
  • Thyroid disorders

COVID-19 Information

To our pediatric endocrine patients, particularly our diabetes patients, for more information regarding COVID-19 and diabetes sick day care/management, please visit the American Diabetes Association website. regarding COVID-19 and diabetes sick day care/management. You may also refer to the CDC for updated information regarding COVID-19. If you have particular questions or concerns regarding your diabetes care, please call us at 269.337.6435.

Our Locations

WMed Health Pediatric Endocrinology and Diabetes is located at 1000 Oakland Drive on the 1st floor in Kalamazoo, Michigan, and at 670 Mall Drive in Portage, Michigan. Parking is available adjacent to the building at both locations. Our practice is a non-smoking environment. We strive to provide a clean environment for our patients.

Fees and Insurance

WMed Health Pediatric Endocrinology and Diabetes participates with many insurance providers, including Medicaid and Medicaid Health Plans. Before your first visit, check with your insurance company to understand what services will be paid for by your insurance plan. For every appointment, you will need to bring your insurance card(s). Co-pays are due at the time of service and accepted forms of payment are cash, check, MasterCard, Visa, and Discover. If you have questions, our patient financial counselors are ready to help you. Please call our Billing Department at 269.337.4460.


A referral by a healthcare provider is required. To refer, call 269.337.6289 or fax 269.337.6547.

Our Care Team

  • Berrin Ergun-Longmire, MD, Pediatric endocrinologist
  • Ethel Clemente, MD, Pediatric endocrinologist
  • Andrea Caskey, LMSW, Medical social worker
  • Jan Gibes, RN, CDE, Registered nurse and certified diabetes educator
  • Patti Maravolo, DNP, Pediatric endocrinology nurse practitioner
  • Cheryl Robert, RD, CDE, Dietician and certified diabetes educator
  • Toni Swinford, RN, Registered nurse

Our Providers