Welcome to
Walden Sierra!  

Since 1973, Walden Sierra has been a key contributer to the well-being of Southern Maryland.  In 2018, our substance use, mental health & recovery support services joined Pyramid Healthcare.  Walden Sierra continues to staff our 24 hour hotline, 301-863-6661, and an array of trauma services serving St. Mary's County, Maryland.  Please also visit www.pyramidwalden.com for more information.


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Staff enjoyed the celebrations at our 2017 Summer Picnic!

Speakers and presenters available upon request; email larissa@waldensierra.org.


Latest News & Events

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More Help, More Hope

March 24, 2019 9:00 am

Walden Growing Even More “Help for Today Hope for Tomorrow”

Since Pyramid Healthcare’s acquisition of Walden Sierra in October of 2018, Pyramid Walden (doing business still as Walden) has been hard at work bringing even more “help for today hope for tomorrow” to Southern Maryland.  “In the midst of the ongoing opioid addiction health crisis throughout the state, we are pleased to report expanded access to Walden’s continuum of care in Southern Maryland, particularly within our residential treatment programs,” said Kathleen O’Brien, Chief Development Officer of Walden and CEO of Walden Sierra.  “We are also responding to opportunities to replicate thoughtfully our unique brand of service delivery in other communities who are seeking a similar service continuum around the state.”

Several key steps have taken place to enhance Walden’s ability to serve those most in need.  Walden has increased the number of beds available in the Anchor/Charlotte Hall inpatient treatment facility by almost 20%.  An enhanced access/admissions team approach, complete with transportation to and from the inpatient treatment levels of care, has opened the doors for more rapid access, often same day, to treatment for those with the most severe symptoms of substance use disorder.  In addition, Walden has initiated an expansion of programming at its transitional treatment campus in California, Maryland.  “Walden has always sought to build programming responsively around community need, and this expansion is another example of our dedication to helping our clients stabilize their recovery,” explains Betsy Lenhart-Cooksey, Clinical Services Director.

In the meantime, Walden’s outpatient treatment and recovery support services continue to deliver a number of options for community-based behavioral healthcare.  Outpatient sites in Lexington Park, Charlotte Hall and Waldorf provide substance use disorder outpatient and intensive outpatient options along with mental health and medication assisted treatment for clients of our substance use programs.  The Beacon of Hope Recovery Community Center and The Cove/DFZ adolescent clubhouse both continue to deliver a range of individual and group services related to supporting the process of healthy change. 

In all, over 500 adolescents and adults have been served, on average, monthly since October 2018.  “Walden remains committed to our collaborative partners and community projects,” says Laura Webb, Associate Executive Director.  Walden’s staff maintains robust participation in community projects for the most vulnerable of populations, including those impacted by homelessness, poverty, justice-involvement, and the active addiction of family members or loss of a loved one to overdose.    Walden Sierra, a 501c3, continues to operate the 24-hour crisis hotline, 301-863-6661, for community members with any type of crisis.  The hotline is an integral part of Walden Sierra’s crisis and trauma counseling for those experiencing domestic violence, relationship abuse or sexual assault. 

Community members can access Walden services by calling 301-997-1300 and following the prompts for admissions.  It is also possible to walk into any of our locations to discuss services.  To speak with Walden’s leadership, please contact Laura Webb (lwebb@pyramidwalden.com, 301-997-1300 x 804) or Betsy Lenhart-Cooksey (blenhart-cooksey@pyramidwalden.com, 301-997-1300 x 805.) 

Look for our fresh new look and more information about our services at pyramidwalden.com.  Updated programming brochures are available now upon request or at one of our weekly Pop Up Recovery installations around the community.

About Walden:   At Walden, we offer a comprehensive array of crisis, behavioral health, trauma-focused, and recovery-supportive services. Founded in 1973, Walden has continued to grow and evolve to meet the changing needs of individuals and families.  Walden joined the Pyramid Healthcare family in October 2018.  Walden services can be accessed by calling 301-997-1300 and following the prompts for admissions or walking in to any of our locations.  Walden Sierra’s 24 hour crisis hotline can be reached at 301-863-6661 for crisis concerns including domestic violence, relationship abuse, or sexual assault.

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Walden Welcomes New COO

January 23, 2018 10:00 am

A new year and new beginnings at Walden Behavioral Health in Southern Maryland, with the arrival of a new Chief Operating Officer, Dr. Sam Bauman, Ph.D. 

Dr. Bauman has recently served as Clinical Director at the Calvert Health Department; as the Clinical Director at Grafton Integrated Health Network and as the Director of ACT Services at Community Connections, DC.  Dr. Bauman has over thirty years’ experience in executive management of juvenile justice, substance use disorder treatment, behavioral health and human service agencies.  He has developed and implemented programs for youth & family services, school-based services, primary prevention family strengthening services, rehabilitation services, domestic violence treatment, homeless case management, crisis intervention, jail-based substance use disorder treatment, and dual diagnosis services.  Dr. Bauman has extensive experience as a trainer and has designed and conducted workshops on a variety of behavioral health topics.

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Medication-Assisted Treatment at Walden

October 10, 2017 12:10 pm

In the midst of the opioid epidemic, communities across the country face increased demands for prevention and substance use disorder services.  The Center for Disease Prevention and Control (CDC) report

  • Young adult’s heroin use more than doubled in the past decade
  • More than 90 percent of people who use heroin also use at least one other drug
  • 45 percent of people who use heroin are also addicted to prescription opioid painkillers.
  • Prescription opioid drug overdoses increased threefold in three years.

To combat this crisis, behavioral health organizations are increasingly utilizing evidence-based practices such as medication assisted treatment (MAT), Walden is no different.  Medications such as buprenorphine and methadone consistently prove effective in treating opioid use disorder.  In recent years, extended-release naltrexone has also been approved for the treatment of opioid dependence and shown evidence of effectiveness.

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