THE DERMDOX TEAM - Sugarloaf Office

Stephen Schleicher, MD

Medical Director

The author of two books and over one hundred journal articles, Dr. Schleicher serves on the Editorial Board of the journal Emergency Medicine and for fifteen years served on the Advisory Board of the Day Spa Association. READ MORE

Linda Weinberg, CRNP
Nurse Practitioner

Linda Weinberg, Ph.D., FNP-C.,RN has more than 15 years experience working in dermatology.  As a family nurse practitioner , Linda is able to care for patients of all ages.  Whether it be a lesion, acne, rash, psoriasis, redness of the face, or a wound that won’t heal, Linda will be available to assist you and your family. 


Sarah Schumacher

Office Manager/
Registered Medical Assistant

As our coordinator, Sarah makes sure our facility is providing high quality care services for our patients. Sarah also assists Dr. Schleicher in surgical and cosmetic procedures.

Cassandra Manganelli

Medical Assistant/Front Office

Cassandra was born and raised in Hazle Township, She is a  Licensed Esthetician and Certified Dermatology Technician. Cassandra loves all things skin care, spending time with family, friends and rescue pup, Rocco. 

Rebecca Geiger, MSPAS, PA-C

Physician Assistant

Rebecca graduated from Seton Hill University with a Bachelor of Science and Master of Physician Assistant Studies.   She is board certified by the National board for PA certification and has been practicing as a Physician Assistant since 2005


MaryAnn Guza, LPN
Office Nurse

As a member of the Dermatology Nursing Association (DNA), MaryAnn manages all aspects of our nursing duties. She works daily with patient phone issues, mediation question and patient care issues.  MaryAnn also perform cosmetic microderm and chemical peel treatments as well as assists with laser procedures.

Roselys Santiago

Medical Assistant

​Roselys is our Office Manager as well as a Medical Assistant.   She is responsible for front office duties, such as answering the phone and scheduling appointments for all  providers. In addition, she is bilingual in English and Spanish and helps translate Spanish speaking patients.

Crystal Rodriguez
Front Office

Crystal was born and raised in New York.  She believes that the key to over all success is accomplished by having a positive attitude. 

Charlene Roman-Holland (Cookie)

Practice Manager

Cookie has been doing customer service for over 40 years. She has an outgoing personality and is excellent with patience and people. She is willing to go the extra mile. With over 10 years experience in dermatology. Cookie also has over 20 years of management skills. She is a people person and loves what she does.  Cookie Loves to spend time with her friends and family. She enjoys all the special moments with her seven grandchildren. 

Welcome to DermDox.

On August 1, 2016, DermDox Dermatology Centers, PC opened its dermatology center in Downtown Hazleton.  Dr. Stephen Schleicher and his team has been serving Luzerne County and the surrounding area for over thirty years, and welcomes you to the practice with offices now located in Sugarloaf and Mechanicsburg.

Dr. Schleicher continues to offer the same service that thousands of patients have relied on for decades.


Clinical Research Studies.

DermDox has a variety of dermatology clinical studies available where the public may participate - and get free dermatology study care and paid for participant's time.  Please call the office to learn about the latest studies, as we offer many studies each year, and studies may begin on short notice.  We will announce studies on this website when we are able.  

Dana M. Mauch, CRA

Director of Clinical Research 

Dana has been working with Dr. Schleicher managing his clinical research activities for nearly 15 years. 


Sugarloaf             570-459-0029

Mechanicsburg  717-458-5407

Leola                      717-869-0919

Camp Hill             717-869-0928

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