Contact
Known For: Two-location practice (Nashua and Concord) delivering one of New Hampshire’s most comprehensive interventional psychiatry menus — IV ketamine, Spravato, TMS, Stellate Ganglion Block, and mPNS — led by three board-certified physicians.
| Review Scores | 4.8/5 stars |
| Location | Nashua, NH |
| Address | 436 Amherst St, Suite 100, Nashua, NH 03063 |
| Phone | (888) 366-7210 |
| Website | oasistherapeutics.net |
| Treatments | IV Ketamine Infusion, Spravato (Esketamine), TMS, Stellate Ganglion Block (SGB), mPNS, Psychiatric Evaluation, Medication Management |
| Conditions Treated | Depression, Anxiety, PTSD, OCD, Chronic Pain, Nicotine Dependence, Substance Use, Suicidal Ideation, Long-COVID |
| Cost | Contact clinic for pricing |
| Insurance | Contact clinic for Spravato/TMS coverage details |
| Clinical Lead | Team of 3 board-certified MDs |
HealingMaps Take: Oasis Therapeutics is the most complete interventional psychiatry practice in New Hampshire and it is not particularly close. With three board-certified MDs on staff and a treatment menu that spans IV ketamine infusions, Spravato (esketamine nasal spray), TMS, Stellate Ganglion Block for PTSD, and magnetic peripheral nerve stimulation, Oasis offers breadth that rivals major academic medical centers. The Nashua location at 436 Amherst Street serves the entire southern New Hampshire corridor — easily accessible from Manchester, Merrimack, Milford, and communities along the Route 3 corridor. For patients in the region, Oasis eliminates the need to drive to Boston for advanced psychiatric treatments. The fact that they also treat conditions beyond depression — including chronic pain, nicotine dependence, substance use, and long-COVID — makes this a versatile practice for patients with complex presentations.
Patient Review
“The team at Oasis took the time to explain every treatment option before we started. Having ketamine, Spravato, and TMS all available in one place meant we could adjust my plan without switching clinics. The Nashua office is modern and calming.”
For Clinic Owners
2026 Ketamine Clinic Intelligence Report
We identified $23,000+/month in revenue opportunities for practices like yours.
Pricing benchmarks, billing strategies, and a full revenue playbook — built from 23,496 real patient inquiries across 1,473 clinics.
See the Report →About Oasis Therapeutics
Oasis Therapeutics is an interventional psychiatry practice with locations in Nashua and Concord, New Hampshire. The Nashua office is located at 436 Amherst St, Suite 100, Nashua, NH 03063. Led by a team of three board-certified physicians, Oasis offers IV ketamine infusion therapy, Spravato (esketamine nasal spray), transcranial magnetic stimulation (TMS), Stellate Ganglion Block (SGB) for PTSD, magnetic peripheral nerve stimulation (mPNS), psychiatric evaluations, and medication management. The practice treats depression, anxiety, PTSD, OCD, chronic pain, nicotine dependence, substance use disorders, suicidal ideation, and long-COVID symptoms. Patients can reach the clinic at (888) 366-7210.
For more on how ketamine therapy works, see our complete guide to ketamine therapy.
What People Like
The breadth of treatments is unmatched in New Hampshire — six distinct interventional modalities plus medication management. Three board-certified MDs provide a level of physician oversight rarely seen at standalone infusion clinics. The Nashua location is easily accessible from southern NH and northern Massachusetts. The practice treats chronic pain and substance use in addition to mood disorders, making it suitable for complex cases. Veterans and first responders are specifically served.
What People Don’t Like
KAP (ketamine-assisted psychotherapy) is not offered — the approach is medical rather than psychotherapeutic. Specific pricing is not published online. As a multi-provider practice, patients may not always see the same physician. The breadth of services may mean longer wait times for specific treatments.
Getting Started at Oasis Therapeutics
Call (888) 366-7210 or visit oasistherapeutics.net to schedule an initial consultation. The Nashua office is at 436 Amherst St, Suite 100. For the Concord location, see the separate listing.
Learn more about the evidence behind ketamine for depression at the National Institute of Mental Health.
Learn more about this treatment:
Location
Add Review
Healing Maps Editorial Staff
View all posts by Healing Maps Editorial StaffThe Healing Maps Editorial Team has decades of experience across all facets of the psychedelic industry. From assessing studies and clinic research, to working with clinician's and clinics, we help provide data-backed information to psychedelic-curious individuals across the globe.
Leave a Reply