Robin B. Scheiner, MD

Dr. Scheiner is dedicated to the practice’s philosophy of providing modern dermatologic care in a pleasant and compassionate environment.

Dr. Scheiner believes that each patient is an individual and that the most important element to successful treatment outcome is hearing each patient’s concerns. After listening to the patient’s concerns, she can then offer a treatment plan to address those specific issues.

Staying current with advances in medical and cosmetic dermatology is a driving force in Dr. Scheiner’s professional life.

BA in Psychology, University of Pennsylvania 1981
Board Certified in Dermatology in 1990
Temple University of Pennsylvania, MD Degree, 1986
Medical College of Pennsylvania, Internship in Internal Medicine, 1986-1987
Skin and Cancer Hospital of Temple University, Residency, 1987-1989
Johns Hopkins Medical Institution, Chief Resident in Dermatology, 1989-1990
Memberships and Honors:
Named a “Top Doc” by Main Line Today magazine
American Academy of Dermatology
American Medical Association
Pennsylvania Medical Society
Philadelphia Dermatologic Society
Chester County Medical Society
Delaware County Medical Society, President 1996
Published numerous times in the medical literature

Kari W. Boucher, MD

Kari W. Boucher, MD at Brinton Lake DermatologyDr. Boucher is particularly sensitive to patients’ needs and concerns regarding skin care and the challenge of chronic skin conditions.

Dr. Boucher’s top concern with her patients is their comfort in knowing that they will receive the finest, most up-to-date care in a hassle-free environment.

BA in Psychology & Economics, Wellesley College 1991
Board Certified in Dermatology, 2001
Hahnemann University School of Medicine, MD Degree, 1997
Hahnemann University School of Medicine, Distinguished Academic Performance in Dermatology Award
Abington Memorial Hospital, Internship, 1997-1998
Cooper Hospital University Medical Center in Camden, NJ of UMDNJ/Robert Wood Johnson Medical School, Residency, 1998-2001; Chief Resident for Training in Dermatology, 2001
Memberships and Honors:
Named a “Top Doc” by Main Line Today magazine
American Academy of Dermatology
American Medical Association
Philadelphia Dermatology Society
Pennsylvania Academy of Dermatology
American Society of Dermatologic Surgery
American Society for Cosmetic Dermatology
Published with numerous journal articles and book chapters

Sarah E. Tonelli, MD

Sarah E. Tonelli, MD at Brinton Lake DermatologyDr. Sarah E. Tonelli is a board-certified dermatologist and native of the Brandywine Valley who specializes in medical dermatology for all ages and conditions, including acne, rosacea, eczema, psoriasis and skin cancer. She also performs routine skin cancer checks and has a particular interest in cosmetic dermatology which can be used to enhance beauty in a subtle and natural way. She is committed to providing an unparalleled level of care and offering the most up-to-date, research-supported treatments.

Dr. Tonelli lives in Chadds Ford with her husband and two young sons. She enjoys exploring the countryside (and playgrounds!) of the Brandywine Valley.

Dermatology Residency, Tufts Medical Center, 2015 – 2018
Pediatric Residency, Children’s Hospital of Philadelphia, 2013 – 2015
Tufts University School of Medicine, MD Degree 2013
Boston College, BS in Biology 2009
Memberships and Honors:
American Academy of Dermatology
Alpha Omega Alpha Honors Society
The Glasgow-Rubin Certificate of Commendation for Academic Achievement (Tufts University School of Medicine)
Sydney S. Gellis Pediatric Award (Tufts University School of Medicine)

Brett B. Miller, MD, FAAD

Brett Miller, FAAD at Brinton Lake DermatologyDr. Brett B. Miller is a board-certified dermatologist and a fellowship-trained Mohs surgeon. He received a Bachelor of Science from Pennsylvania State University in 2007 and Doctor of Medicine from St. George’s University School of Medicine (2010) and Drexel University College of Medicine (2012).

Following an internship at Crozer Chester Medical Center, Dr. Miller completed his residency at Drexel University College of Medicine, Hahnemann University Hospital, where he served as Chief Resident from 2015-2016.

Dr. Miller completed his fellowship training in Mohs Micrographic Surgery and Dermatologic Oncology under the guidance of Dr. Nathaniel Jellinek, in Rhode Island, and is one of only 1,400 fellowship-trained physicians in the country in this specialized field.

He is a diplomate of the American Board of Dermatology and a Fellow of the American Academy of Dermatology.

Chief Resident, Drexel University College of Medicine/Hahnemann University Hospital, 2015-2016
St. George’s University School of Medicine, Drexel University College of Medicine, MD, 2010-2012
Pennsylvania State University, Bachelor of Science, 2007
Memberships and Honors:
American Board of Dermatology, Diplomate
American Academy of Dermatology, Diplomate
American College of Mohs Surgery, Fellow

Emily Cai, MD

Emily Cai, MD at Brinton Lake DermatologyDr. Emily D. Cai is a board-certified dermatologist and has a special interest in medical dermatology. She is committed to providing the most up-to-date dermatologic care in the areas of acne, eczema, psoriasis, skin cancer, and skin rejuvenation.

One of Dr. Cai’s most important goals is to always take the time to carefully listen to the needs and concerns of each patient, working together to create the best treatment plan for each individual.

She is a native of California and a graduate of the University of Pittsburgh’s dermatology program.

University of Pittsburgh Medical Center (UPMC), Dermatology Residency, 2023
St. Mary’s Medical Center (San Francisco), Internship, 2020
Stanford University, MD Degree, 2019
Cornell University College of Arts and Sciences, BA, 2014

Pam Kittipongdaja, DO, FAAD

Emily Cai, MD at Brinton Lake DermatologyDr. Kittipongdaja is a board-certified dermatologist specializing in medical, surgical and cosmetic dermatology. She graduated at the top of her class at Nova Southeastern University where she earned her initial medical degree.

She has published in many peer-reviewed publications and lectures on various dermatology topics including dermascopy (dermatoscopy), a powerful microscopic procedure which is used to evaluate pigmented skin lesions and helps in the diagnosis of melanoma.

Nova Southeastern University, DO
University of California, Davis, BS Biological Science, BS Psychology

Physician Assistants

Erin Doherty, MS, PA-C

Erin Doherty, MS, PA-C at Brinton Lake DermatologyA native of Montgomery County, Erin Doherty is thrilled to be working with the team at Brinton Lake Dermatology. Erin began her career as a Physician’s Assistant several years ago and has worked in both emergency and critical care. Erin knew that she was meant for the medical field after spending a summer during college working in a hospital.

The dermatology field was another draw for her, as she recalls concerns that she experienced with her skin as a teenager. “I’ll never forget my own trips to the dermatologist and how she helped me with my issues. Now I have the opportunity to help my patients feel more comfortable with their own skin.” Erin says the best part about her role as a Physician’s Assistant is being an integral part of a team — everyone working together to find the best solution for the patient.

BS, Biology, Loyola College in Maryland
MS, PA Studies, University of Medicine and Dentistry of New Jersey

Theresa Kueny, PA-C

Theresa Kueny, PA-C at Brinton Lake DermatologyFrom an early age, Delaware County native Theresa Kueny had a strong interest in the field of medicine. As a high school student, she provided critical medical services by becoming certified and volunteering as an emergency medical technician and fire fighter. She received her a bachelor of science degree at St. Joseph’s University and a master’s degree at Drexel University’s Hahnemann Physician Assistant Program.

Theresa enjoys interacting with her patients and says that her goal is to provide a comfortable environment where the needs of each individual patient are met with a smile. When not practicing medicine, Theresa can be found cycling, painting, reading or working on a new recipe.

BS, St. Joseph’s University
MS, Drexel University’s Hahnemann Physician Assistant Program

Morgan Stomel, PA-C


Morgan’s passion for dermatology began when she had the opportunity to intern at a dermatology practice when she was a teenager. While Morgan always dreamed of pursuing a career in medicine, this internship, along with her own dermatologic struggles, motivated her to join Brinton Lake Dermatology. After receiving her Bachelor of Science degree from Loyola University Maryland, Morgan continued her education at Philadelphia College of Osteopathic Medicine and obtained a Master of Science degree in Biomedical Science. Morgan completed her graduate degree as a Physician Assistant at Mercy University in New York. Her graduate work included a clerkship at a well-known dermatology practice in Manhattan.

In her spare time, Morgan enjoys baking, exercising and spending time with friends and family.

BS, Loyola University
MS, Philadelphia College of Osteopathic Medicine

Bethany D. Bones, MSPAS, PA-C

Bethany’s interest in the field of medicine began when she was young. She was inspired by her mother, a dedicated operating room nurse, and her enthusiasm for science. As a teenager, Bethany dealt with her own dermatologic concerns and visited a dermatology PA for guidance. The encounter served to help set her sights on a similar vocation. Bethany has prior experience working in orthopedic surgery, and she is thrilled to now be caring for patients at Brinton Lake Dermatology.

She is passionate about patient education and encouraging them toward better outcomes which, she says, can truly help improve comfort and self-esteem. When not helping patients feel good about their skin, Bethany and her husband, Sean, enjoy working out, playing with their dog, Lily, and cheering on their beloved alma mater’s football team, Penn State.

BS, Biology, The Pennsylvania State University
MS, PA Studies, Marietta College

Medical Aestheticians

Charlotte Gallagher

Charlotte Gallagher, Medical Aesthetician at Brinton Lake DermatologyA registered nurse, Charlotte Gallagher thinks that nothing is more rewarding than helping other people look and feel good about themselves. Charlotte is so pleased that she is able to bring her extensive medical background to Brinton Lake Dermatology as a cosmetology professional. She enjoys guiding patients, many of them individuals she’s seen for more than a decade, throughout their “skin care trials and tribulations” and likes to utilize new methods and procedures she’s learned through continued education.

When not at Brinton Lake Dermatology, Charlotte enjoys cooking, gardening, traveling and spending time with her husband and family, including grandchildren.

Graduate of Bryn Mawr Hospital School of Nursing
Became licensed as an aesthetician in 2004

Dina Napolitano

Dina Napolitano, Medical Aesthetician at Brinton Lake DermatologyA native of Philadelphia, Dina worked as a law firm assistant for nearly 15 years before deciding to pursue a new career that would provide greater interaction with people. She completed a medical assistant program at the Technical Institute of Camden County and subsequently worked as a medical assistant in a dermatology practice in New Jersey where, she says, she “found her true calling” in cosmetic aesthetician services.

Dina loves helping people and “making them feel good” by offering all sorts of dermatological cosmetic procedures, skin care product suggestions and treatment option advice.

Technical Institute of Camden County, Medical Assistant Program
Rizzieri Aveda School of Beauty and Wellness
Licensed Aesthetician

Melissa Tordella

Originally from sunny Arizona, Melissa Tordella enjoys helping clients achieve glowing, healthy skin. While providing nourishing, pampering treatments and results-driven procedures, she’s also happy to offer valuable home care tips about exfoliation, daily moisturizing, cleansing and more since, as she says, “our clients are at home more than they are here and daily home skin care is a must if you want to achieve your goals.”

Of particular interest to Melissa is oncology skin care where she can expertly provide her special brand of tenderness and care. “I know the products these individuals can safely use and am honored to be of help during challenging times.”

Steiner Institute of Esthetics
Greet the Day Oncology Skin Care