Providers
33
Locations
3
Specialties
3
Insurance Plans
7
About Cornerstone Behavioral Healthcare Llc
Background and practice information
Cornerstone Behavioral Healthcare LLC is a established group medical practice based in Waterville, ME, with 33 affiliated healthcare providers practicing across 3 locations.
The practice brings together providers across several specialties, including mental health counselor, clinical social worker, and nurse practitioner. Its providers are in-network with 7 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Practice Locations
3 locations
Cornerstone Behavioral Healthcare LlcPrimary
222 SAINT JOHN ST, Portland, ME 041023054
(207) 992-2521
Insurance Networks
Accepted insurance plans and networks
Cornerstone Behavioral Healthcare Llc accepts 39 plans from 6 insurers, including Cigna, Aetna, Humana.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Specialties at Cornerstone Behavioral Healthcare Llc
Provider specialties represented at this practice
Healthcare Providers in Portland
6 providers practice here
Monica Kelly, CSW
Clinical Social Worker
Portland, ME
Raymond Plotnick, CSW
Clinical Social Worker
Portland, ME
Bennett Holbrook
Mental Health Counselor
Portland, ME
Tamara Hunt
Mental Health Counselor
Portland, ME
Susan Wiley
Mental Health Counselor
Portland, ME
Rowena Tessman, NP
Nurse Practitioner · Telehealth
Portland, ME
Frequently Asked Questions
Common questions about Cornerstone Behavioral Healthcare Llc
How many providers are at Cornerstone Behavioral Healthcare LLC?
Cornerstone Behavioral Healthcare LLC has 33 affiliated healthcare providers across 3 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Cornerstone Behavioral Healthcare LLC offer?
The practice includes providers in mental health counselor, clinical social worker, and nurse practitioner. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Cornerstone Behavioral Healthcare LLC accept?
Providers at Cornerstone Behavioral Healthcare LLC are collectively in-network with 7 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Where is Cornerstone Behavioral Healthcare LLC located?
Cornerstone Behavioral Healthcare LLC's primary location is in Waterville, ME, with 2 additional locations listed on this page. See the contact section for the full address and phone number.
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