Addiction Medicine and Health Advocates
928 Market Street, Philadelphia, PA
Gemma Services
Also known as Preheim Center
Address: 6517 Chester Avenue, Philadelphia, PA 19142 · Map
Phone: (215) 247-1427
Website: gemmaservices.org
Services reported to SAMHSA
- Levels of care
- Outpatient
- Treatment focus
- Mental health treatment · Treatment for co-occurring disorders plus serious emotional disturbance (SED) in children
- Facility type
- Outpatient mental health facility
- Medications used
- Aripiprazole · Quetiapine · Risperidone · Ziprasidone · Antipsychotics used in treatment of SMI
- Treatment approaches
- Cognitive behavioral therapy · Couples/family therapy · Group therapy · Individual psychotherapy · Telemedicine/telehealth therapy
- Special programs
- Clients who have experienced trauma · Persons with post-traumatic stress disorder (PTSD)
- Ages accepted
- Children/Adolescents · Young Adults
- Payment accepted
- Medicaid · Private health insurance · Private or Community foundation · Cash or self-payment · State welfare or child and family services funds
- Ownership
- Private non-profit organization
- Other services
- Family psychoeducation · Supported employment · Therapeutic foster care · Suicide prevention services
Facility-provided information
- Care offered
- Outpatient
- Conditions treated
- Post Traumatic Stress Disorder · Trauma
- Therapies
- 1-on-1 Counseling · Cognitive Behavioral Therapy · Family Therapy · Group Therapy · Online Therapy
- Who it serves
- Adolescents · Children · LGBTQ+ · Young Adults
- Languages
- English
Questions to ask Gemma Services
- Is my specific plan in network, and do you need prior authorization before admission?
- How many hours a week is the outpatient or IOP schedule, and are evening groups available?
- If I need medication for opioid or alcohol use disorder, do you prescribe it or refer out?
- Do you treat mental health conditions such as depression or anxiety at the same time?
- Is there a waitlist, and how soon can you do an assessment?
- What happens after the program ends: aftercare, alumni groups or step-down care?
Also confirm the facility is licensed by Pennsylvania. If you are withdrawing from alcohol or benzodiazepines, ask about medical detox; do not stop suddenly on your own.
Paying for treatment at Gemma Services
Gemma Services reports accepting Medicaid, Private insurance, Self-pay. With Pennsylvania Medicaid, treatment is usually covered at little or no cost, though some levels of care need prior authorization. Most private plans must cover substance use treatment on terms comparable to other medical care under federal parity law.
Distance to specialized care from Philadelphia
Measured from the population center of Philadelphia County, using SAMHSA locator data mapped by FindRehabMap:
- Nearest medical detox: Philadelphia, about 1.6 miles
- Nearest methadone clinic (OTP): Philadelphia, about less than a mile (69 within 25 miles)
- Nearest buprenorphine (Suboxone) provider: Philadelphia, about 1.0 miles (129 within 25 miles)
See the Philadelphia County treatment map, methadone clinics near Philadelphia County and Suboxone doctors near Philadelphia County.
Frequently asked questions
What services does Gemma Services offer?
Gemma Services reports these levels of care to SAMHSA: Outpatient, Dual diagnosis. Call to confirm current services and openings.
Does Gemma Services accept insurance?
It reports accepting Medicaid, Private insurance, Self-pay. Ask whether your specific plan is in network before admission.
Where is Gemma Services located?
6517 Chester Avenue, Philadelphia, PA 19142.
How far is the nearest medical detox from Philadelphia?
From the center of Philadelphia County, the closest program offering medical detox is in Philadelphia, about 1.6 miles away (straight-line), based on SAMHSA locator data mapped by FindRehabMap.
Other treatment facilities in Philadelphia
Alpha Healing Center
7900 Frankford Avenue, Philadelphia, PA 19136
Apm
3265 North Front Street, Philadelphia, PA 19140
Aporia Group LLC
525 South 4th Street, Philadelphia, PA 19147
Asociacion Puertorriquenos en Marcha
4301 Rising Sun Avenue, Philadelphia, PA 19140
Asociacion Puertorriquenos en Marcha
4301 Rising Sun Avenue, Philadelphia, PA 19140
See all 161 facilities in Philadelphia · Detox · Residential · Outpatient · Intensive outpatient · MAT · Methadone
Last reviewed 2026-10-06. Facility details come from SAMHSA's FindTreatment.gov locator and facility-provided information. Confirm services, availability and payment directly with the facility.