Bryn Mawr Dermatology

Villanova, PA | Collegeville, PA

Amanda Ritschel, Licensed Aesthetician, CLT

Amanda Ritschel, LE, CLT

Amanda RitschelAmanda started her career in the medical industry by working as a Radiology Billing Manager for over a decade. She learned to love the precision and practicality of medical science, but ultimately knew that she wanted to pursue her dream career in the aesthetic field. Being a life-long lover of skin-health and the beauty industry she took the leap in 2020 by putting herself through the Aesthetics program at the Beauty Institute in Ambler, PA. She graduated as a Licensed Aesthetician and makeup artist with extensive knowledge about the most up-to-date cosmetic offerings and an intense appreciation for providing extraordinary customer service. 

Amanda is constantly creating opportunities for herself to add new devices and modalities to her repertoire, and has most recently become a Certified Laser Technician specializing in Laser Hair Reduction and Intense Pulsed Light (IPL) Therapy. This insatiable thirst for knowledge ensures that she stays at the forefront of her field.

Bethany Valentin, CphT


Bethany ValentinBethany Valentin has worked as a pharmacy technician in a leadership role for nearly two decades. Throughout most of her practice in high volume retail pharmacies she has had the opportunity to work with large corporate acquisitions, training and development, and new store openings. This experience, along with her bubbly personality and genuine love of people, led to her being selected as the Lead Pharmacy Technician on the opening team of an all-inclusive healthcare facility at Walt Disney World Resort in Orlando, FL. Nationally certified by the PTCB, Bethany stays current in the ever-changing pharmacy industry by completing required continuing education classes and subscribing to various pharmacy-related publications.

Bethany chose to leave the world of corporate retail pharmacies in 2018 and became an integral part of opening one of the area’s first in-office dispensaries at Bryn Mawr Dermatology.

Mary Parkinson, Licensed Aesthetician, CLT

Mary Parkinson, LE, CLT

Mary ParkinsonMary Parkinson started out in the esthetic industry in 1981 after graduating from the Wilfred Academy School of Beauty with honors. She fulfilled her dream of becoming a business-owner shortly thereafter by opening Tres Belle Salon in Manayunk.

As a full-time working owner, Mary most enjoyed mastering her technical skills in waxing, nail care and facials. Despite her busy client load, she always made time to keep herself and her staff informed of the most up-to-date techniques and tools in the industry.

After more than two decades devoted to her salon, Mary decided to focus on her education by becoming a Certified Laser Technician, taking courses in micro-needling and mastering medical esthetic technique. She has also made time to attend multiple worldwide Aveda Esthetic conventions and to participate in fund raising for cancer research.

Mary joined Bryn Mawr Dermatology in early 2015 and hit the ground running. Bringing with her over three decades of experience, she has developed the esthetic menu and expanded the scope of cosmetic offerings at BMD.

Kathleen (Katie) Venesky, MPA, PA-C

Katie Venesky PA-C

Kathleen VeneskyKatie started her career as a physician assistant (PA) in 2009 after graduating with her Master’s in Physician Assistant studies from Marywood University. At Marywood she was a member of the Alpha Epsilon Lambda Graduate Professional Honor Society due to her exceptional academic record and stellar GPA.

Her career goal was always to specialize in dermatology, and in 2013 she attained that goal and has been immersed in fine-tuning her knowledge and skills by working in private practice as a dermatology PA ever since.

She maintains her memberships with the American Academy of Physician Assistants, Pennsylvania Society of Physician Assistants, Society of Dermatology Physician Assistants, Pennsylvania Society of Dermatology Physician Assistants, and completes essential continuing medical education every year to ensure that she intermingles cutting-edge science with her extensive hands-on experience.

Lilly Moss Parllaku, PA-C

Lilly Moss Parllaku, PA-C

lilly moss parllakuLilly is another home-grown Pennsylvanian and spent her childhood in West Chester. She travelled down south to the University of Georgia for college and finished her advanced degree back home at Drexel. She graduated the PA-C program in 2012 and spent 7 years in the Penn Emergency Department where she has performed thousands of procedures and had the opportunity to diagnose and treat many rare skin disorders. Lilly has always had a particular penchant for integrating an esthetic eye into the art of laceration repair and was congenially known as the “lac queen” during her stint at Penn. She also found the time to give back to her fellow PA-Cs by establishing the first internship program for PA students in the Penn ED.

She is an active member of the Pennsylvania Dermatology Physician Assistants, the Society of Dermatology Physician Assistants (SDPA), and is board certified by the Commission on Certification of Physician Assistants (NCCAP). She regularly attends educational conferences to stay up to date in the field. Her favorite event to-date was the week long 2018 Fall SDPA seminar in Orlando that covered the dermatology sub-specialties: psoriatic arthritis, pediatric & adolescent dermatology, gestational dermatology, and dermatologic surgical procedures.

*To learn more about the extensive medical training Physician Assistants complete, as well as their qualifications, please click here.

Shannon Del Grande, PA-C

Shannon Del Grande, PA-C

Shannon Del GrandeShannon Del Grande is a welcome addition to the Bryn Mawr Dermatology team. She is a passionate physician assistant (PA) who has half-a-decade of both medical and cosmetic dermatology experience under her belt.

Shannon completed her Master’s in PA studies at Arcadia University and immediately started her medical career at a top plastic surgery office where she performed countless injectable treatments in addition to skin cancer screenings and skin cancer surgeries. With her know-how, aesthetic eye and finesse, the transition into dermatology has been a smooth one.

She is an active member with the American Academy of Physician Assistants, Society of Dermatology Physician Assistants and Association of Plastic Surgery Physician Assistants.

*To learn more about the extensive medical training Physician Assistants complete, as well as their qualifications, please click here.

Lynn Williams, PA-C

Lynn Williams, PA-C

Lynn WilliamsLynn Williams joined the Bryn Mawr Dermatology team in June of 2015 but has been practicing dermatology in the Philadelphia area since 2003. As a physician assistant (PA) Lynn enjoys getting to know and care for markedly diverse patients who require her expertise. She cannot imagine another career for which she would be better suited for.

Lynn graduated from Duke University with a Bachelors of Science in Biology and continued on to the Philadelphia College of Osteopathic Medicine to attain her Masters degree in Physician Assistant Studies. She had the opportunity to offer her skills as a medical volunteer in the emergency room of a rural hospital in St. Lucia between completing her two degrees. She spent the majority of her time there educating the local community on how to manage chronic illnesses in order to prevent emergencies. In turn, the experience allowed her to hone her problem solving skills.

To maintain a competitive edge in the demanding field of dermatology, Lynn regularly attends lectures and conferences. She is an active member of both the Society of Dermatology Physician Assistants (SDPA) and the American Academy of Physician Assistants (AAPA).

*To learn more about the extensive medical training Physician Assistants complete, as well as their qualifications, please click here.

Rae Calamia, PA-C

Rae Calamia, PA-C

Rae CalamiaRae Calamia chose to pursue a career as a physician assistant (PA) after several years of working for a medical device company. Her desire to find a challenging medically based career that directly impacted patients’ lives made becoming a PA the ideal professional option for her.

Rae began her career as a PA in 1999 in orthopedic surgery in Santa Rosa, CA. Drawn to the complex challenges of dermatology, and the opportunity to build long-lasting connections with her patients, Rae started her dermatology career in 2005.

In her role as a PA, she performs physical exams, establishes diagnoses, orders and evaluates labs and other studies, performs skin biopsies and surgeries, initiates and manages treatment plans, and prescribes medication.

Rae holds an undergraduate degree from Penn State University and earned a Masters of Science Degree in Physician Assistant Studies from DeSales University. She is a member of the Society of Dermatology Physician Assistants and is certified by NCCPA (National Commission on Certification of Physician’s Assistants). To stay at the top of her field, Rae frequently attends dermatology conferences and lectures.

*To learn more about the extensive medical training Physician Assistants complete, as well as their qualifications, please click here.

Brett Miller, MD, FAAD

Brett Miller, MD, FAAD

Dr. Brett MillerDr. Brett B. Miller is a board-certified Dermatologist and a fellowship-trained Mohs surgeon. A Pennsylvania native, Dr. Miller is a graduate of Penn State University and Drexel University College of Medicine in Philadelphia. Following graduation, he completed his internship training at Crozer Chester Medical Center and his Dermatology residency at Drexel University College of Medicine, where he served as Chief Resident. Dr. Miller completed his fellowship training in Micrographic Surgery and Dermatologic Oncology under the expert guidance of Nathaniel Jellinek, MD at Dermatology Professionals, Inc. in Rhode Island. Dr. Miller is among only 1400 physicians in the country who are fellowship-trained in this field.

Dr. Miller’s fellowship training included Mohs micrographic surgery with an emphasis on surgical technique and reconstruction, the comprehensive management of skin cancers and extensive experience in the management of nail disease and nail surgery. He also specializes in laser surgery and cosmetic dermatology.

Seana Covello, MD, FAAD

Seana Covello, MD, FAAD

Dr. Seana CovelloDr. Covello is a board certified dermatologist who started her education at Fordham University – a top-ranked Catholic university in New York City. There, she earned a double Bachelor’s degree in Biology and Art History. She then proceeded to graduate with honors from the School of Medicine at Hahnemann University, and three years later completed her residency in Dermatology at Thomas Jefferson University. After graduation she was invited to become a clinical instructor in the Department of Dermatology at Thomas Jefferson University, as well as an assistant professor in the University of Pennsylvania’s Department of Dermatology. Dr. Covello was awarded the Instructor of the Year in 2011 by the dermatology residents at the University of Pennsylvania.

While educating the future physicians of America, she practiced Dermatology in Philadelphia for 16 years before moving to the Main Line in 2013 to work in a private practice. She currently holds the status of diplomat for the American Board of Dermatology and is a fellow of the American Academy of Dermatology. Dr. Covello has repeatedly been recognized as a top dermatologist by Philadelphia Weekly magazine and year-after-year has been named a “Main Line Top Doc” by Main Line Today.

Your Skin is Our Business.



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