Our Staff

Want to join our team?  We are looking to expand our programming and offer more services needed in the community.  We are looking for Licensed/credentialed people to provide an array of services for Children, Adolescents, and Adults.  We offer a competitive benefit package.  Salary is based on level of license/credentials.

Sierra Holman - Office Manager is a native of Hagerstown, Maryland. She graduated from N o rt h Hagerstown High School. Sierra loves the city and it has her heart. Sierra is an involved mother of two beautiful girls and a proud dog owner. Sierra joined the team at Callahan in October 2019. As the office manager Sierra genuinely loves her job. She loves each and every one of her co-workers. Her biggest accomplishment is being a mother and she loves her family. Sierra brings several skills to Callahan and continues to grow in her field.

Shannon Williams - Receptionist Shannon is a Martinsburg native and a 2018 graduat e o f Martinsburg High School. She currently attends BlueRidge Community and Technical College where she received an Associate of Applied Science in Human Services and is working on an Associate of Science w ith a concentration in Psychology. She plans to attend a university in the fall to pursue a Bachelor’s in Psychology. She came to Callahan as an intern in August 2019 and now works as our receptionist. Shannon enjoys dance and has been dancing since the age of 3. She also enjoys spending time with her family, friends, and puppy, Cora. She brings to Callahan several skills and we love having her here!

Peter J. Callahan, LICSW, ADC-S, MAC, CCFC, ICADC is a Licensed Independent Clinical Social Worker, Licensed in West Virginia and Virginia. Peter is an Alcohol and Drug Counselor and is an active member of the WV Certification Board of Addiction and Prevention Professionals (WVCBAPP). Peter is also a Clinically Certified Forensics Counselor through the American College of Forensic Counselors.  He has been appointed to the West Virginia School of Medicine as a Clinical Instructor.
Peter has developed numerous community-based programs and continues to work with local and state agencies.  He sits on several state committees to improve the quality of care for those in need. Peter has worked with many schools in the area as well as with a variety of authors in the mental health and addictions field.
Peter has served on the West Virginia Certification Board of Addiction and Prevention Professionals (WVCBAPP) in many capacities, including, President, Treasurer, and Certification Chair.  Peter has also served proudly on the International Certification & Reciprocity Committee (IC&RC) Board. The IC&RC is the oversighting body of the WVCBAPP.  Peter served on the Executive Committee of the IC&RC Board as the Finance Chair member.  Peter is also on the Berkeley County Adult Drug Court Advisory Committee.  Peter recently joined the Board of the West Virginia Association of Alcohol and Drug Abuse Counselors.

Education
West Virginia University: MSW

License, Certifications & Awards:
Licensed Independent Clinical Social Worker (LICSW)
Alcohol Drug Counselor (ADC)
Clinically Certified Supervisor (CCS)
Internationally Certified Alcohol and Drug Counselor (ICADC)

Master Addiction Counselor (MAC)
Clinically Certified Forensic Counselor (CCFC)


2014 Distinquished Service Award from the West Virginia Association of Alcohol and Drug Abuse Counselors (WVAADC).

Professional Act ivities and Memberships
WV Certification Board of Addiction and Prevention Professionals (WVCBAPP) (Past President)
WV Assocation of Alcohol and Drug Abuse Counselors (WVAADAC)

International Certification & Reciprocity Consortium (IC&RC)  Past Finance Committee Chair and former member of the Executive Committee

L. Douglas Houck, LPC, NCC, AADC
Doug is a National Board Certified Counselor and he is a Licensed Professional Counselor an Advanced Alcohol and Drug Counselor in the state of West Virg inia.  He obtained his undergraduate RBA degree, with a concentration in Psychology, from Shepherd College and his Masters degree in Counseling from West Virginia University.  During his twenty-five years of clinical experience, he has worked in the community, hospital and private sectors providing mental health and addiction services.  His past experiences include working as the clinical director of a 24-bed adult addictions rehabilitation facility, serving as the administrator of a county-wide mental health clinic, coordinating a hospital-based intensive outpatient program, and practicing as a private practice clinician in Martinsburg, WV for six years.  Prior to entering the mental health and addictions field in 1989, Doug worked for Mack Trucks for seventeen years as a Materials Test Engineer.  Doug is a native of Martinsburg and he and his wife live locally.

Education
West Virginia University: MA

License, Certifications & Awards:
Licensed Professional Counselor (LPC)
National Board Certified Counselor (NCC)
Advanced Alcohol Drug Counselor (AADC)
Internationally Certified Advanced Alcohol and Drug Counselor (ICAADC)

Susan Callahan, MSW, LICSW Susan is a Licensed Independent Clinical Social Worker.  She provides skillful and caring psychotherapy for adults and adolescents.  Susan's area of interest include grief and loss, depression and anxiety disorders, as well as, relationship and parent guidance.

Trained in Cognitive Behavioral Therapy (CBT) techniques, Susan works to create a respectful and supportive environment in which clients of any age feel listened to and supported as they navigate whatever challenges they are facing.

Susan's approach is primarily client centered and strength based, incorporating various modalities such as, Mindfulness Based Cognitive Therapy, Cognitive Behavioral Therapy or Solution Focused Therapy, depending on the needs of the client.  She assists clients in alleviating troubling symptoms and understanding the underlying causes of these symptoms, developing a more empowered sense of themselves.

Susan is the mother of three boys. She is an active member of the community where she holds seats on boards of the Shenandoah Women’s Center and the charitable organization, Saint Vincent DePaul Society.  Susan also volunteers at Antietam National Battlefield in Sharpsburg, MD.

Education
Shepherd University - Bachelor of Arts
West Virginia University - Master's of Social Work

License, Certifications & Awards:
Licensed Independent Clinical Social Worker (LICSW)

Non-Discrimination Policy

Callahan Counseling Services, does not exclude, deny services to, or otherwise discriminate against any person on the ground of race, color, gender identification, national origin, or on the basis of disability or age in admission to, participation in or receipt of the services and benefits under any of its programs, activities and employment, whether carried out by Callahan Counseling Services directly or through a contractor or another entity with which Callahan Counseling Services arranges to carry out its programs and activities.

This statement is in accordance with the provisions of Title VI of the Civil Rights Act of 1964, Section 504 of the Rehabilitation Act of 1973, the Age Discrimination Act of 1975, and Regulations of the U.S. Department of Health and Human Services issued pursuant to these statutes at Title 45 Code of Federal Regulations Parts 80, 84 and 91.

 


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