About Us

WHY OneWell

Exceeding quality standards as a provider, and bringing innovation, progress, and development to the healthcare industry.


OneWell provides IDD Services in
California, Connecticut, New Jersey, Pennsylvania, and South Carolina.

25+ Languages

25+ Languages spoken by our Dedicated Staff.

Since 2020

OneWell was founded as the IDD division of PAHM (PA Health Management) in 2020.

"OneWell is driven by your success. Every single day, we support our communities and always look for ways to improve upon our already excellent quality and innovation."
Cynthia Seemiller
OneWell IDD Senior Director
SINCE 2020


In December 2012, PA Health Management (PAHM) was born. We created PAHM because we saw a need to create positive health outcomes for individuals in our community. In the beginning, we focused on providing Supports Coordination for individuals by being a Managed Care Organizations (MCOs) chosen by the Pennsylvania Department of Human Services to deliver Managed Long-Term Services and Supports (MLTSS). By spending time with each person one-on-one, building supportive teams, and working to understand the details of each unique case, we quickly began to grow. In 2020, we expanded our services to include Addiction Treatment Programs and Intellectual/Developmental Disability (IDD) Services. Through innovative ideas, we promoted a higher quality of life for over 5,000 individuals with physical & developmental disabilities, addiction, and the aging population.

Seeing a need for a new mission and vision for those in the IDD community, PAHM made the decision to separate Supports Coordination and IDD Services into separate entities in 2021. Starting in Pennsylvania OneWell has since expanded into both California and New Jersey to provide exceptional services in their communities.



OneWell’s vision is to exceed quality standards as a provider and to bring innovation, progress, and development to the healthcare industry. We are advocates at heart, with the goal to promote healthy living, educate, and advocate for people with behavioral health, intellectual, and developmental disabilities, and those who are in need.




We are committed to successful health outcomes for our participants and communities.


We build relationships based on respect and trust to allow everyone that we interact with to feel safe, secure, and loved.


We have compassion for those who are in need.


We are continuously innovating to help improve the quality of life.

innovation and quality care


OneWell’s promise is to deliver better health and wellness outcomes for individuals and communities through innovation and quality care. We believe in taking a person-centered approach to the care that we deliver. We work together closely with individuals, families, and collaborative care teams to develop care plans that fit the needs of everyone we serve – with consideration that each person we assist has their own talents, skills, interests, and needs, that are unique to them.

At OneWell, we aspire to bring support and direction to individuals and their families. We believe in establishing a personalized plan and including support preferred by individuals and their families to help reach personal and developmental goals while setting an overall goal to increase self-sufficiency, improve quality of life, and reduce stress.

Our promise is to support the individuals’ independence and empower them so they have the ability to participate in daily decision-making, and in directing their own service.

statewide service


OneWell California Office Locations:
  • Orange County

            250 North Golden Circle Dr, Suite 100, Santa Ana, CA 92705

  • San Diego

            8745 Aero Dr, Suite 300, San Diego, CA 92123

OneWell provides services in the following counties of California:
  • San Diego

  • Orange County
  • Los Angeles (Coming Soon!)
OneWell Connecticut Office Locations:
  • Farmington

            231 Farmington Ave, Suite 208, Farmington, CT 06032

OneWell provides services in the following counties of Connecticut:
  • Fairfield, Hartford, Litchfield, Middlesex, New Haven, New London, Tolland, and Windham Counties

OneWell New Jersey Office Locations:
  • Piscataway

            242 Old New Brunswick Rd, Suite 259, Piscataway, NJ 08854

OneWell provides services in the following counties of New Jersey:
  • Atlantic, Bergen, Burlington, Camden, Cape May, Cumberland, Essex, Gloucester, Hudson, Hunterdon, Mercer, Middlesex, Monmouth, Morris, Ocean, Passaic, Salem, Somerset, Sussex, Union, and Warren Counties.

OneWell Pennsylvania Office Locations:
  • Altoona

            213 E Plank Rd, Altoona, PA 16602

  • Chambersburg

            77 Horst Ave, Chambersburg, PA 17201

  • Erie

            410 Cranberry St, Suite 130, Erie PA 16507

  • Horsham

            955 Horsham Rd, Suite 202 & 305, Horsham PA 19044

  • Lancaster

            2141 Oregon Pike, Lancaster, PA 17601

  • Wilkes-Barre

            940 Schechter Dr, Suite 2B, Wilkes-Barre, PA 18702

  • Williamsport

            926 Washington Blvd, Williamsport, PA 17701

OneWell provides services in the following counties of Pennsylvania:
  • Adams, Allegheny, Armstrong, Beaver, Bedford, Berks, Blair, Bradford, Bucks, Butler, Cameron, Carbon, Centre, Cambria, Chester, Clarion, Clearfield, Clinton, Columbia, Crawford, Cumberland, Dauphin, Delaware, Elk, Erie, Fayette, Forest, Franklin, Fulton, Greene, Huntingdon, Indiana, Jefferson, Juniata, Lackawanna, Lancaster, Lawrence, Lebanon, Lehigh, Luzerne, Lycoming, McKean, Mercer, Mifflin, Monroe, Montgomery, Montour, Northampton, Northumberland, Perry, Philadelphia, Pike, Potter, Schuylkill, Snyder, Somerset, Sullivan, Susquehanna, Tioga, Union, Venango, Warren, Washington, Wayne, Westmoreland, Wyoming, and York Counties.

OneWell South Carolina Office Locations:
  • Bluffton

            7 Arley Way, Suite 102A, Bluffton, SC 29910

OneWell provides services in the following counties of South Carolina:
  • Coming Soon!

stay up to date

OneWell NEWS

Inside OneWell: A Day in the Life of Michael

Inside OneWell: A Day in the Life of Michael

In this video blog, we had the pleasure of sitting down with Michael, one of our dedicated employees here at OneWell.

Autism Acceptance Month: Inclusion and Respect

Autism Acceptance Month: Inclusion and Respect

April is Autism Acceptance Month, a time to celebrate and promote the acceptance of individuals on the autism spectrum.

Empowering the Nonverbal-Autism with ASL

Empowering the Nonverbal-Autism with ASL

Empowering nonverbal autistic individuals is possible through American Sign Language (ASL).

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