Our Physicians and Staff

Kashif Munir, MD
Assistant Professor of Medicine
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition
Vice Division Chief of Endocrinology, Diabetes and Nutrition
Medical Director, UM Center for Diabetes and Endocrinology at UMMC Midtown Campus

Fellowship: University of Maryland Medical Center
Residency: University of Maryland Medical Center
Medical Degree: MD, Temple University School of Medicine
Special Interests: Thyroid and Pituitary Disorders, Type 1 and Type 2 Diabetes
Board Certification: Endocrinology, Diabetes and Metabolism

Dr. Munir has a strong clinical interest in treating patients with pituitary and thyroid disorders. He also manages complex diabetes patients, including those with insulin pumps and continuous glucose monitors.


May Alattar, MD
Assistant Professor of Medicine,
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition

Fellowship: National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health
Residency: MedStar Harbor Hospital
Medical Degree: MD, Al-Mustansiryia Medical College, Baghdad, Iraq
Special Interests: Diabetes, Obesity, Thyroid Disease, Metabolic Disorders
Board Certification: Internal Medicine; Endocrinology, Diabetes and Metabolism


Stephen N. Davis, MBBS, FRCP, FACP
Theodore E. Woodward Professor of Medicine
Professor of Physiology
Chairman, Department of Medicine
University of Maryland School of Medicine
Physician-in-Chief, University of Maryland Medical Center
Division of Endocrinology, Diabetes & Nutrition

Residency: Royal Free Hospital, United Kingdom
Medical Degree: MBBS, Royal Free Hospital, London University, United Kingdom
Research: University of Newcastle upon Tyne (United Kingdom); Vanderbilt University School of Medicine
Special Interests: Diabetes and Metabolic Disorders, Biological Basis of Certain Diabetes-Related Complications, Exercise Physiology, Mechanisms of Cardiovascular Disease in Diabetes, Hypoglycemia

Dr. Davis has devoted his career to research and patient care and focuses on treating adults with diabetes and metabolic disorders, as well as studying the biological basis of certain diabetes-related complications. His research focuses on exercise physiology, mechanisms of cardiovascular disease in diabetes and mechanisms that defend against a falling blood glucose level, a condition known as hypoglycemia. Dr. Davis’ laboratory has found areas in the brain that act to reduce the body’s ability to protect itself against hypoglycemia. He also has identified promising new treatments and interventions that counteract these mechanisms and molecular areas in the brain to stimulate the body’s ability to defend it against hypoglycemia.

Seth Himelhoch, MD
Professor of Psychiatry, University of Maryland School of Medicine
Psychiatrist

Fellowship: Johns Hopkins Hospital 
Residency: University of California, San Francisco Medical School 
Medical Degree: University of Michigan School of Medicine
MPH: Johns Hopkins University School of Hygiene & Public Health
Special Interests: Developing Mental Health Programs and Services in a Clinical Setting
Board Certification: Psychiatry; Psychosomatic Medicine


Elizabeth Lamos, MD
Assistant Professor of Medicine
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition

Fellowship: University of Maryland Medical System
Residency: University of Maryland Medical System
Medical Degree: MD, University of Maryland School of Medicine
Special Interests: Type 1 and Type 2 Diabetes, Thyroid, Pituitary and Calcium Disorders
Board Certification: Internal Medicine


Rana Malek, MD
Assistant Professor of Medicine
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition
Fellowship Director, UM Center for Diabetes and Endocrinology at UMMC Midtown Campus

Fellowship: National Institutes of Health
Residency: Emory University Hospital
Medical Degree: MD, University of Maryland School of Medicine
Special Interests: Management of Lipid Disorders, Pre-Diabetes, Polycystic Ovarian Syndrome, Endocrine Causes of Hypertension
Board Certification: Internal Medicine; Endocrinology, Diabetes and Metabolism

Dr. Malek has a clinical interest in metabolic health, with a focus on management of lipid disorders, pre-diabetes, polycystic ovarian syndrome and endocrine causes of hypertension. She is particularly interested in management of these issues in women. Dr. Malek has extensive experience managing patients with both type 1 and 2 diabetes mellitus. She has both clinical and research experience managing patients with extreme insulin resistance.


Lina Melhem, MD
Assistant Professor of Medicine
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition

Fellowship: University of Maryland Medical Center
Residency: University of Maryland Medical Center; University of Iowa Hospitals and Clinics
Medical Degree: MD, University of South Alabama College of Medicine
Special Interests: Type 1 and Type 2 Diabetes, Insulin Resistance Syndrome, Polycystic Ovarian Syndrome, Thyroid Disorders


Ryan Miller, MD 
Assistant Professor of Pediatrics, University of Maryland School of Medicine
Pediatric Endocrinologist

Fellowship: Johns Hopkins University 
Internship/Residency: University of Virginia School of Medicine
Medical Degree: Albany Medical College
Special Interests: Pediatric Endocrinology
Board Certification: Pediatric Endocrinology; Pediatrics


Paula Newton, MD
Assistant Professor of Medicine, University of Maryland School of Medicine
Fellowship: Washington University Hospital for Children 
Residency: Inova Fairfax Hospital
Medical Degree: Washington University Medical School
Special Interests: Pediatric Endocrinology
Board Certification: Pediatrics; Pediatric Endocrinology


Maria Eleni Nikita, MDMaria Eleni Nikita, MD
Clinical Assistant Professor of Pediatrics,
University of Maryland School of Medicine
Pediatric Endocrinologist

Fellowship: University of California San Diego
Internship: Penn State Hershey Children's Hospital
Residency: Penn State Hershey Children's Hospital
Medical Degree: University of Crete
Special Interests: Pediatric Thyroid Cancer, Polycystic Ovary Syndrome


Marjorie Pennant, MD
Assistant Professor of Medicine
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition

Fellowship: University of Pittsburgh Medical Center
Residency: George Washington University Hospital
Medical Degree: MD, Pennsylvania State University College of Medicine
Special Interests: Diabetes Mellitus, Thyroid Disorders, Male Hypogonadism, Adrenal Disorders
Board Certification: Internal Medicine; Endocrinology, Diabetes and Metabolism


Ava Port, MD
Assistant Professor of Medicine
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition

Fellowship: Boston University Medical Center
Residency: Boston University Medical Center
Medical Degree: MD, Rutgers Medical School
Special Interests: Endocrinology, Nutrition and Weight Management, Obesity and Metabolism, Bariatric Surgery, Diabetes
Board Certification: Internal Medicine

Dr. Port joined the University of Maryland faculty in August of 2012, and has since become involved in a multidisciplinary team treating Bariatric surgical patients. She has also led the development of a weight management program at the University of Maryland’s Center for Diabetes, which provides a comprehensive and personalized program to help overweight or obese (BMI > 25 kg/m2) diabetics achieve their weight loss goals.


Kristi Silver, MD
Associate Professor of Medicine
University of Maryland School of Medicine
University of Maryland Center for Diabetes and Endocrinology
Director, Endocrinology, Diabetes and Metabolism Fellowship Program
Division of Endocrinology, Diabetes and Nutrition
Vice Division Chief of Endocrinology, Diabetes and Nutrition
Director of Clinical Research, UM Center for Diabetes and Endocrinology at UMMC Midtown Campus

Fellowship: Johns Hopkins University School of Medicine
Residency: University of Massachusetts Medical Center
Medical Degree: MD, University of Maryland School of Medicine
Special Interests: Type 1 and Type 2 Diabetes, Insulin Pumps, Continuous Glucose Monitoring, Diabetes in Pregnancy, Endocrine Disorders
Board Certification: Internal Medicine; Endocrinology, Diabetes and Metabolism

Dr. Silver is board certified in both internal medicine and endocrinology and metabolism. Dr. Silver joined the faculty at the University of Maryland School of Medicine in 1997. Her research interests include the genetics of insulin secretion,
pharmacogenetics/pharmacogenomics of diabetes medications and inpatient and outpatient diabetes management.

Ilias Spanakis, MD
Associate Professor of Medicine
University of Maryland School of Medicine

Fellowship:  Johns Hopkins Hospital
Residency: St. Elizabeth’s Medical Center
Medical Degree: MD, Demokritos University of Thrace, Greece
Internship: Pananeio Venizelio Hospital, Greece
Special Interests: Endocrinology, Diabetes & Metabolism
Board Certification: Internal Medicine


Nanette Steinle, MD
Assistant Professor of Medicine
University of Maryland School of Medicine
Division of Endocrinology, Diabetes and Nutrition

Fellowship: University of Maryland Medical System
Residency: University of Maryland Medical System
Medical Degree: MD, Medical College of Ohio
Special Interests: Diabetes, Diabetes Prevention, Nutrition, General Endocrinology
Board Certification: Internal Medicine; Endocrinology, Diabetes and Metabolism


Elizabeth Streeten, MD
Associate Professor of Medicine
University of Maryland School of Medicine
Director, Metabolic Bone Program
Co-Director, Genetics and Personalized Medicine Clinic
Division of Endocrinology, Diabetes and Nutrition

Fellowship: Johns Hopkins Hospital; National Institute of Health
Residency: Johns Hopkins Hospital
Medical Degree: MD, Albany Medical College
Special Interests: Metabolic Bone and Mineral Diseases, General Endocrinology,
Treatment of Osteoporosis, Kidney Stones
Board Certification: Internal Medicine; Endocrinology, Diabetes and Metabolism; Medical Genetics

Dr. Streeten joined the faculty at UMMS in the Division of Endocrinology, Diabetes & Nutrition in 1998. In 2005, she co-founded the Genetics and Personalized Medicine Clinic and received a secondary appointment in the Genetics Division of the Pediatric Department. Dr. Streeten’s research interests include the study of genetic factors contributing to bone health and vitamin D metabolism, primary and secondary hyperparathyroidism, and treatment of Osteoporosis-pseudoglioma (OPPG) syndrome and other rare disorders of metabolic bone. She has been a co-investigator in the Amish Family Osteoporosis Study since 1998.


Nurse Practitioners

Malinda Duke, MSN, CPNP, CDE
Pediatric Nurse Practitioner
MSN: Johns Hopkins University
BSN: University of Maryland
Post Masters Certification: Johns Hopkins University
Board Certification: Pediatrics; Pediatric Endocrinology
Special Interests: Adolescents with Diabetes


Photo of Michelle Ghabranious Michelle Ghabranious RN, MN, NP
Adult Nurse Practitioner
BSN: Loretto Heights College
MN: University of Washington
NP: George Washington University
Post Graduate Certificate: Pulmonary Nursing, University of Arizona
Special Interests: Type 1 and Type 2 Diabetes; Health Disparities; Health Promotion; Chronic Disease Prevention


Photo of Cathy KrichtenCathy Krichten, CRNP, CDE
Adult Nurse Practitioner
CRNP: Johns Hopkins Hospital
MSN: University of Maryland
BSN: University of Maryland
Certification: Certified Diabetes Educator
Special interests: Young Adults with Diabetes; Insulin Pump Therapy; Continuous Glucose Monitoring


Photo of Jennifer C. SumbillaJennifer Sumbilla Anisko, RN, MSN, CRNP
Pediatric Nurse Practitioner
Certified Diabetes Educator

MSN: University of Maryland School of Nursing
BS: University of Maryland College Park
BSN: University of Maryland School of Nursing
Board Certification: PCNB Certified for Advanced Practice Pediatric Nursing
Special Interests: Pediatric Diabetes; Insulin Pump Management


Kristie Talley, CPNP, RN, MSN
Pediatric Nurse Practitioner
Certified Diabetes Educator

MSN: University of Maryland School of Nursing
BSN: University of Maryland School of Nursing
Board Certification: PCNB Certified for Advanced Practice Pediatric Nursing
Special Interests: Pediatric Diabetes; Pediatric Endocrine Testing


Diabetes Educators

Eva H. Gonzales, MPH, RD, CDE
Senior Diabetes Education Coordinator
MPH: Walden University
BS: University of Maryland College Park
Dietetic Pre-Professional Practice Program: Long Island College Hospital, SUNY Downstate Medical Center
Certification: Certified Diabetes Educator
Special Interests: Weight Management, Adult Diabetes, Inpatient Diabetes & Glycemic Analytics, Critical Care Nutrition & Diabetes, Community Environmental Health Improvement, Prevention & Wellness Promotion 


Photo of Kathleen ArkangelKathleen Arkangel, RN, CDE
Diabetes Educator
Certification: Certified Diabetes Educator
Special Interests: Type 2 Diabetes; Stress Management


Photo of Lisa M. DavisLisa M. Davis, RD, LDN, CDE
Diabetes Educator
BS: Marywood University
Certification: Certified Diabetes Educator
Special Interests: Adult Diabetes Education; Gestational Diabetes; PCOS; Insulin Pumps


Angela Ginn, RD, LDN, CDE
Senior Diabetes Educator  Coordinator
BS: Morgan State University
Certification: Certified Diabetes Educator
Special interests: African American Nutrition; Food Preparation; Meal Planning; Behavior and Lifestyle Changes; Integrative and Functional Medicine



Elizabeth Smith, RDN, LDN, CDE
Diabetes Educator
BS: East Carolina University
Certification: Certified Diabetes Educator
Special Interests: Nutrition; Diabetes Education; Insulin Pump Therapy; Continuous Glucose Monitoring; Diabetes in Pregnancy


Sara Fitzgerald, MS, RN, CDE
Diabetes Educator
AA: Community College of Baltimore County Catonsville Campus—Associate of Science (Basic RN degree)
BS: College of Notre Dame of Maryland—Bachelors of Science in Nursing (BSN)
MS: University of Maryland, Baltimore—Masters of Science (MS)
Certifications: Certified Diabetes Educator
Special Interests: Pediatrics, Young Adults, Adults, Pump Therapy, Expert Training, Dexcom


Ardelia Morris, MA, RD, CDE
Diabetes Educator
BS Dietetics: University of Maryland Eastern Shore, Princess Anne, MD
MA: University of Central Florida, Orlando, FL
Certification: RD,CDE,ACSM
Special interests: Gestational Diabetes & Diabetes with Pregnancy, Adult Diabetes & weight management, fitness


Candice Hargrove, BS, RN
Diabetes Educator
BS: Coppin State University
Certifications: ACLS; PALS

For appointments or information, call 855-979-8667.