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Board-Certified Physician Assistant 

Cassandra Baier. PA-C, is a board-certified physician assistant certified by the NCCPA (National Commission on Certification of Physician Assistants). She attended James Madison University graduating magna cum laude with a Bachelor of Science degree in biology. She received her Master’s degree in Physician Assistant Studies from The Philadelphia College of Osteopathic Medicine and completed her master’s thesis on the effects of narrowband phototherapy in combination with different nonsteroidal topicals for the treatment of vitiligo.

Prior to entering dermatology, her experiences included adult and pediatric inpatient medicine. She also enjoys continuing medical education and has been an active participant on past committees in the inpatient setting. Cassandra values personalized care and fosters an open and comfortable environment for all patients. She has a special interest in pediatric dermatology, pigmentary disorders, and preventative skin care screening.

Cassandra is a member of the American Academy of Physician Assistants, Pennsylvania Society of Physician Assistants, and the Society of Dermatology Physician Assistants.

Outside of the office, you can find Cassandra enjoying the great outdoors, dancing, running, and spending quality time with her husband, family, and friends.

Board-Certified Physician Assistant

Jessica Doyle, PA-C, is a board-certified physician assistant. She graduated from Pennsylvania State University earning her undergraduate degree in Nutrition. She then continued her graduate education at Arcadia University in Glenside, PA where she earned her Master's in Physician Assistant Studies.

Jessica is certified by the National Commission for Certification of Physician Assistants (NCCPA) and she is licensed in Pennsylvania. Her professional affiliations include the American Academy of Physician Assistants (AAPA), and the Society of Dermatology Physician Assistants (SDPA). Jessica is a member of the Pennsylvania Dermatology Physician Assistants (PDPA).

As a Physician Assistant in dermatology, she is committed to putting patient care first and is dedicated to providing patients with the highest quality of care in addressing their specific dermatologic needs and concerns. She strives to provide her patients with great care by staying current within the field of dermatology and maintaining a welcoming and engaging environment. She is fulfilled by each patient’s success, which is what led her to pursue a meaningful career in dermatology.

Outside of work, Jessica enjoys spending quality time with her husband and family, and living an active lifestyle.

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Certified Physician Assistant

Kate Matekovic, PA-C, attended Pennsylvania State University and completed a Bachelor of Science degree in Kinesiology and graduated in May 2015. She furthered her education at Philadelphia College of Osteopathic Medicine, obtaining a Masters of Physician Assistant Studies degree in July 2019. She is certified by the National Commission on Certification of Physician Assistants (NCCPA) and is licensed through the states of Pennsylvania and Delaware.

She is a member of the American Academy of Physician Assistants (AAPA), the Society of Dermatology Physician Assistants (SDPA), and Pennsylvania Dermatology Physician Assistants (PDPA). Kate has been working in the field of dermatology since graduating in 2019. She is committed to providing high quality patient care and always puts the patient's needs first. She treats patients of all ages and enjoys all aspects of medical dermatology including educating patients on the importance of sun protection and skin care. 

Kate lives in Philadelphia, and in her free time, she enjoys exercising, shopping, traveling, reading, watching Penn State football, the beach (with adequate sun protection and sunscreen of course), and spending time with her family, friends, and her goldendoodle Barkley.

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Board-Certified Physician Assistant

Jessica DiJulio, MA, MMS, PA-C, a native of the Lehigh Valley, is a board-certified physician assistant and is licensed by the Pennsylvania State Board of Medicine. Jessica graduated from the Lewis Katz School of Medicine at Temple University with a Master of Medical Science degree as a member of its inaugural PA class. Completing an elective rotation in dermatology, her master’s thesis focused on Dupilumab for atopic dermatitis. She was elected to the American Academy of Physician Assistants (AAPA) Student Board of Directors for the Mid-Atlantic Region and represented the 38 PA programs in Pennsylvania, DC, Delaware, Maryland, Virginia, and West Virginia.

She joined Dermatology Partners in 2020 after beginning her career at Thomas Jefferson University’s Jefferson Dermatology Associates in Philadelphia, PA. There she was a sub-investigator on two clinical trials, co-author on journal articles submitted for peer review, and treated patients including infants and children through adults. Jessica enjoyed working with patients to create daily regimens for sun protection and optimal skin health.

Jessica is board-certified by the National Commission for Certification of Physician Assistants. Her professional affiliations include the AAPA, Society of Dermatology Physician Assistants, Pennsylvania Dermatology Physician Assistants, Editorial Advisory Board for the Journal of Dermatology for Physician Assistants, and volunteer for the National Psoriasis Foundation. She enjoys working with inflammatory skin disease patients especially atopic dermatitis and psoriasis, allergic contact dermatitis, acne, warts, suspicious skin lesions, and skin cancer screenings.

She graduated from Parkland High School prior to completing her bachelor’s degree at The University of Iowa in Journalism and Communication Studies. Jessica was a five-year Academic All American and Division I field hockey player for the Hawkeyes. She returned to the Lehigh Valley, earned her Master of Arts degree in English from Lehigh University in Bethlehem, PA, and taught at Parkland and Emmaus High Schools prior to attending Temple University.

In her free time, Jessica enjoys spending time with her family and friends, attending Formula 1 races and cars & coffee events with her husband Anthony, watching Iowa Hawkeye field hockey and football, trying new recipes, and running the trails in the Lehigh Valley.

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Board-Certified Physician Assistant

Parth Patel, DMSc, PA-C, is a board-certified Physician Assistant with a specialization in dermatology. He earned his Bachelor of Science Degree in Biology and a Master of Science Degree in Physician Assistant Studies from Seton Hall University. He then pursued his Doctorate of Medical Sciences at Rocky Mountain University of Health Professions with a focus on Healthcare Professions Education.

Patel's journey in dermatology began in New York City, where he received comprehensive training encompassing medical, surgical, and cosmetic dermatology. Following his time in New York City, he relocated to Philadelphia, dedicating his skills to serving the patients of Philadelphia. Patel's expertise lies in managing a wide array of dermatological concerns impacting the skin, hair, and nails. He has a particular focus on conditions including acne, rosacea, psoriasis, eczema, rashes, and skin cancer, ensuring comprehensive care for his patients' diverse needs.

In addition to practicing clinically, Patel serves as an adjunct faculty at Seton Hall University, Thomas Jefferson University, and West Chester University contributing to the education and training of aspiring Physician Assistants. He is an active member of the American Academy of Physician Assistants (AAPA), the Society of Dermatology Physician Assistants (SDPA), and the Pennsylvania Dermatology Physician Assistants (PDPA).

Outside of the office, he enjoys traveling, hiking, running, and long walks with his Goldendoodle. 

Board-Certified Plastic Surgeon 

David P. Singer, MD, is a board-certified plastic surgeon who specializes in general plastic and reconstructive surgery including skin malignancies, lesions, and general reconstruction, birth defects, pediatric plastic surgery, complex and comprehensive hand surgery, trauma, burns, and microsurgery, and aesthetic surgery.

He attended Baylor University for his undergraduate studies in Biology, in which he graduated magna cum laude. He earned his medical degree from the University of Texas Southwestern Medical School. Dr. Singer continued his training with a combined residency in general and plastic surgery at Brown University. He then supplemented his training with a fellowship in Breast Microsurgery at Mercy Hospital in Baltimore, Maryland.

He has published a multitude of publications in plastic and reconstructive surgery and has presented at numerous conferences. Dr. Singer is a diplomate of the American Board of Plastic Surgery and a member of the American Society of Plastic Surgeons. He has been awarded a number of distinctions throughout his career including being recognized as a Top Doc/Rising Star in the Philadelphia Magazine, and in 2019 he was named a Top Doctor in Plastic Surgery in both the Philadelphia Magazine and the Main Line Today.

Dr. Singer was a visiting scholar in microsurgery at Chang Gung Memorial Hospital in Taiwan, one of the largest centers of microsurgery in the world. Dr. Singer has a particular interest and expertise in breat reconstruction and his advanced training allows him to offer patients a variety of options beyond the traditional techniques of implant reconstruction following mastectomy. He has performed numerous breast reconstructions including DIEP flap, breast reduction, hand surgery, skin cancer reconstruction, scar revision, and numerous cosmetic procedures such as breast augmentation, breast lift, abdominoplasty (tummy tuck), liposuction, blepharoplasty (eyelid surgery), rhytidectomy (facelift), otoplasty (ear surgery), rhinoplasty (nose surgery), and other procedures.

Outside the clinic, Dr. Singer enjoys golf, tennis, mountain biking, fly fishing, and traveling.

Board-Certified Plastic Surgeon

Nestor Veitia, MD, is a board-certified plastic and reconstructive surgeon.  After graduating from the University of Delaware, Dr. Veitia received his medical degree from Jefferson Medical College in Philadelphia, after which he completed a full general surgery residency at Pennsylvania Hospital in Philadelphia. During his residency he spent one year as a research fellow in the Division of Plastic and Reconstructive Surgery at the University of Pennsylvania and Children’s Hospital of Philadelphia.  Dr. Veitia then completed a three-year fellowship in Plastic and Reconstructive Surgery at the University of Pittsburgh.  

When not working, Dr. Veitia likes to spend time with his family, traveling and volunteering.

Board-Certified Plastic Surgeon

John Louis, MD, FACS, was born and raised in Fort Worth Texas with his parents and two brothers.  He attended Texas A&M University where he studied architecture and pre-med studies receiving a Bachelor of Environmental Design in 1992, he graduated cum laude.  Dr. Louis worked throughout all of his college years for a civil engineering company as a draftsman and subsequently performing land surveying and topographic flood studies. 

After graduation, he attended the University of Texas Medical Branch in Galveston Texas where he worked in graphic design for the School of Allied Heath and received many awards including The Eben J. Carey award for Anatomy.  During his time in medical school he illustrated a textbook for the Physician’s Assistant program. He then completed a full five year General Surgery residency at The Carillon Roanoke Memorial Hospital in Roanoke Virginia and went on the complete a two year residency in Plastic Surgery at The Medical College of Georgia.  

Dr. Louis combines his diverse education background and work experience to develop customized treatment options for each and every patient based on their desires, needs and goals. Practice experience includes extensive work in reconstruction of post cancer excision defects, reconstructive breast surgery following mastectomies for cancer and other breast, abdomen and chest related issues as well as limb salvage. Aesthetic interests include breast reductions and mastopexies (breast lift), abdominal and head/neck procedures with focus on integration of traditional surgical techniques with newer non-invasive technologies to provide personalized solutions.

When not at work, Dr. Louis spends time with his family and their plott walking hound Reba.  He likes to travel and study history, archeology, gardening and art.

Board-Certified Dermatologist

Howard Rosenman, MD is board certified by the American Board of Dermatology. He provides patient-centric dermatologic care for a variety of skin conditions and patients with all skin types. He treats adults and children and provides medical, surgical, and cosmetic services.

Dr. Rosenman attended Syracuse University in New York and earned his medical degree at the State University of New York Downstate Medical Center in Brooklyn, NY. He completed his internship in Internal Medicine at Lankenau Hospital in Wynnewood, PA. His residency in dermatology was at Kings County Hospital in Brooklyn, NY where he was the Chief Resident in Dermatology. He also served as Chief of Dermatology at Capital Health Systems.

Dr. Rosenman currently serves as a Clinical Professor of Dermatology at the University of Pennsylvania. He is a member of the American Academy of Dermatology, the Pennsylvania Medical Society, the Bucks County Medical Society, the Pennsylvania Academy of Dermatology, and the Philadelphia Dermatological Society.

Board-Certified Dermatologist

Susan J. Kucirka, MD was born and raised in the Lehigh Valley. She graduated from Muhlenberg College for her undergraduate studies in natural science, in which she graduated Magna Cum Laude and was elected to Phi Beta Kappa. She then attended medical school at Thomas Jefferson University of Philadelphia, and completed her dermatology residency at Brown University in Providence, Rhode Island. 

 Dr. Kucirka is a member of the American Academy of Dermatology. She is dedicated to treating the whole patient and not just the disease process. She prides herself on educating the patient on the nature of their medical condition and believes a visit with the doctor should be more than just a diagnosis and treatment of their condition. She devotes herself to meeting the needs of each of her patients in the best possible manner for every individual she treats by getting to know each of her patients as individuals and personalizing their care to come up with the best treatment.

 Outside the clinic, Dr. Kucirka enjoys outdoor activities such as hiking, canoeing, and skiing.

Board-Certified Dermatologist & Mohs Surgeon

Dr. Abraham is a board-certified dermatologist and one of Philadelphia’s most senior Mohs Surgeons. After attaining his undergraduate degree at Temple University, Dr. Abraham attended Jefferson Medical College.  He completed his ​internship at Thomas Jefferson University and his ​dermatology training at​ the​ Temple University Skin and Cancer Hospital. Dr. Abraham ​is a fellow of the American Society for Mohs Surgery.

Dr. Abraham maintains the highest levels of accreditation and pursues ongoing education to stay abreast of the latest trends in dermatology.  He provides a full range of dermatologic care with a special interest in skin cancer screening/treatment and treatment of psoriasis using various modalities including phototherapy and various new biologic therapies. Dr. Abraham treats patients of all ages.

In addition to his love of dermatology and caring ​of patients, Dr. Abraham enjoys the theater and visual arts with his wife Ellen, who is a prolific ​artist. 

Board-Certified Dermatologist 

Steven R. Weasen, MD grew up in the Bronx, NY. Dr. Weasen attended the Bronx High School of Science and Stony Brook University. He graduated from Ohio State University School of Medicine followed by a general internship in dermatology at the Cleveland Clinic Hospital.

Dr. Weasen is board certified in dermatology and is a fellow of the American Academy of Dermatology. He is a member of the Pennsylvania Academy of Dermatology and Philadelphia Dermatologic Society. Dr. Weasen has a special interest in skin cancer screening and treatment. He practices general medical dermatology and enjoys treating both children and the elderly.

Dr. Weasen is an avid sports fan and enjoys playing basketball and tennis. He met his wife, Stephanie Knapp (Allergist) at his Cleveland Clinic Dermatology Residency. He has 3 adult children.

Board-Certified Dermatologist 

Dr. Karen Deasey graduated from Dickinson College with a Bachelor’s degree in Biology before going on to attend the Medical College of Pennsylvania. She completed her internship at Abington Memorial Hospital and her dermatology residency at the Hospital at the University of Pennsylvania in Philadelphia. Dr. Deasey opened her Dermatology practice in Bryn Mawr in 1980. She has also served as Chief of Service for Dermatology for the Main Line Health System.

Dr. Deasey is a board-certified dermatologist with an active practice in Bryn Mawr. She enjoys all aspects of skin diseases, particularly complex rashes, psoriasis, atopic dermatitis, and the diagnosis and treatment of skin cancers and melanoma. She believes in treating the whole patient, always asking questions about their overall health in addition to treating their skin concerns. She sees patients of all ages and strives to provide a warm and welcoming environment from the minute patients walk into her office.

Dr. Deasey is an active member of the PA Academy of Dermatology, PA Medical Society, American Academy of Dermatology, the Philadelphia Dermatology Society, and the Philadelphia Medical Club of Women.

She lives with her husband, Frank, and has two adult sons. In her free time, Dr. Deasey is an avid gardener and attempts to play golf. She loves to travel with her husband and is an active member of her church, singing in the church choir.

Dr. Deirdre Wood received her medical degree from Hahnemann University/Medical College of Pennsylvania in 1996. She continued with an internship in International Medicine at both the Medical College of Pennsylvania Hospital and the Philadelphia Veteran's Administration. Afterward, she began a Dermatology Residency at Hahnemann. She completed four additional years of training including a specialty fellowship in cutaneous lymphomas. She was Chief Resident during her final year.

Board-Certified Dermatologist

Linda Leventhal, MD, PhD, is board certified by the American Academy of Dermatology. She practices medical, surgical, and cosmetic Dermatology. She treats children and adults with a wide variety of skin conditions.

Dr. Leventhal earned her MD and PhD at Drexel University College of Medicine in Philadelphia, PA. Special recognition was awarded to her with selection to the Alpha Omega Alpha Medical Honor Society in her junior year of medical school and she was chosen to serve as president.

She completed her internship in Internal Medicine at Albert Einstein Medical Center in Philadelphia, PA. She went on to receive her Dermatology Residency training at the Hospital of the University of Pennsylvania in Philadelphia, PA.  She was selected to serve as Chief Resident during her final year.

Dr. Leventhal is a Fellow of the American Academy of Dermatology and is a member of the Women’s Dermatology Society, the Philadelphia Dermatology Society, Pennsylvania Medical Society, Bucks County Medical Society, and the Pennsylvania Academy of Dermatology.