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CP&A at Upper Marlboro

9692 Pennsylvania Avenue, Upper Marlboro, MD 20772 Directions  (located on Marlboro Pike) 
Phone:  301-599-7300 
Fax:      301-599-0476 
After Hours Number:  1-866-406-4301 
Office Hours: 

Monday - Friday: 8:00 am - 4:30 pm 
Closed for Lunch: 12:30 pm - 1:30 pm  

CP&A Upper Marlboro Virtual Tour


Our practice was started in 1957 by Dr. Leroy Hoeck. Dr. Alan W. Smith & Dr. Arthur Guarinello continued the practice after Dr. Hoeck’s retirement and since 1998 have been a part of the Children’s Pediatricians & Associates, LLC (Upper Marlboro and Waldorf locations) primary care area of Children’s National Health System in Washington, DC. Dr. Alan W. Smith retired in June 2014 after 35 years of service and Dr. Zafir Kalamadeen joined the practice in July 2014. 

We specialize in the care of infants, children, and adolescents. Dr. Arthur Guarinello, Dr. Renette Belizaire, Dr. Gillian L. Brubaker, Dr. Jill Pellicoro, Dr. Zafir Kalamadeen, Aileen Raulin, CRNP and E. Melissa Smith, CRNP have many years of experience in providing pediatric primary care. They are especially skilled in infant and child care and parent education. Patients are not assigned to any one provider in order that we may get to know all of our patients, and so you may better get to know us. We prefer to practice preventive pediatrics, and periodic routine physical examinations are encouraged. These visits provide each child with a thorough evaluation of health concerns and allow us to monitor his or her growth and development. Immunizations, routine blood and urine tests, and other screening procedures will also be done. Please feel free to ask any questions during the examination. We kindly accept your referral of newborns and children to both of our offices located in Upper Marlboro and Waldorf in Maryland.

Meet Our Providers

Jill Pellicoro, MD, is a general pediatrician and has been in practice for the past 17 years. Dr. Pellicoro attended University of Maryland at Baltimore School of Medicine and completed her residency at the Medical College of Virginia in Richmond 1999. Dr. Pellicoro joined Children’s Pediatricians & Associates, LLC (CP&A) September 1999. She is very focused in pediatric well care for children of all ages including adolescent. Dr. Pellicoro enjoys visiting museums and attending multicultural festivals with her husband and four children.

                    Renette Belizaire, MD, FAAP, has been a practicing pediatrician since 1997. Dr. Belizaire attended George Washington University School of Medicine and completed her residency training in pediatrics at Georgetown University Medical Center. Dr. Belizaire joined Children’s Pediatricians & Associates, LLC (CP&A) July of 1997, left in 1999 and then rejoined CP&A in 2004. She had the opportunity to live in Johannesburg, South Africa with her family from July 2007-2008 and upon her return joined CP&A in Montgomery County. She is thrilled to be back with the CP&A practices located in Upper Marlboro and Waldorf, MD once again! What Dr. Belizaire loves the most about her profession is the fact that children and young adults are quite resilient and they will usually bounce back. However, her greatest satisfaction comes from being able to deliver the best possible medical care for her patients. Outside of the office, Dr. Belizaire enjoys spending time with her husband and four children. She spends her spare time on the soccer field watching her children play, at the dance studio watching her youngest daughter blossom into a graceful ballerina and reading a great book.                  

Gillian L. Brubaker, MD, FAAP, has been in pediatric practice since 1995 and caring for patients in Southern Maryland since 1998. Dr. Brubaker graduated from Williams College Temple University School of Medicine and completed her residency training at the Johns Hopkins Children’s Center. Dr. Brubaker joined Children’s Pediatricians & Associates, LLC (CP&A) in July 2007. She enjoys developing long-term relationships with families. Outside of the office you will usually find Dr. Brubaker in her garden.



Zafir Kalamadeen, MD, is a general pediatrician. Dr. Kalamadeen attended Howard University College of Medicine and completed his residency at the Children's Hospital of Pittsburgh of the University of Pittsburgh Medical Center in 2014. Dr. Kalamadeen joined Children’s Pediatricians & Associates, LLC (CP&A) in July 2014. He enjoys providing pediatric well care for children of all ages and developing long-term relationships with patients and their families. Dr. Kalamadeen enjoys visiting museums, aquariums, watching documentaries, and attending festivals and farmers markets with his wife.

E. Melissa Smith, CRNP, F.A.A.N., is a Virginia native and graduated from Riverside Hospital of Nursing in 1974. She was transferred with her husband to New London Connecticut for the next 15 years where she became certified in Pediatric Nursing. In 1990 her family relocated to Southern Maryland and she received a BSN from the University of New York in 1997. Mrs. Smith continued in the field of pediatrics and became certified in Lactation while completing her Masters in Science from the University of Maryland and her certification as a PNP in 2000. Since that time she has been practicing in general pediatrics and specializing in lactation. She joined Children’s Pediatricians & Associates, LLC (CP&A) in July 2009. She continues to have a special interest in lactation support as well as special needs children, autism, ADHD and other learning disorders. Mrs. Smith lives in Southern Maryland with her husband Bill and has two grown daughters and a grandson.                  

Shannon Woodson, PNP