Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary Louisa Barnhart, MD

Individual provider Addiction Psychiatry Physician · NPI 1811055353

Mary Louisa Barnhart, MD practises Psychiatry in Waterville, Maine. Graduated from University of Pittsburgh School of Medicine in 1979, 47 years ago. Practices with Recover Together Inc, a 143-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
47
Trained at
University of Pittsburgh School of Medicine
Licensed in
ME
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

10 Water St Ste 306
Waterville, ME 04901-6559
Phone: (207) 861-3488
Fax: (207) 861-3470
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction Psychiatry Physician (primary) Taxonomy 2084P0802X · Licence 01440 (ME)

Record details

NPI number1811055353
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 5, 2006
Last updated in NPPESJanuary 12, 2023
Certification dateJanuary 12, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Also practisesADDICTION MEDICINE
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice Recover Together Inc — 143 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Recover Together Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 143 clinicians in the practice; 12 are shown here.