Mary Louisa Barnhart
MD | Addiction Psychiatry | 46+ years Exp
10 Water St, Suite 306, Waterville
Maine, 04901-6559
207-861-3488 207-861-3470
Maps & DirectionsMary Louisa Barnhart is a Waterville, Maine based psychiatrist with 46 years of experience in Addiction Psychiatry. She completed her graduation from University Of Pittsburgh School Of Medicine in 1979. She accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Mary Louisa Barnhart is 01440 for Addiction Psychiatry in Maine. Her current practice location is 10 Water St, Suite 306, Waterville. Patients can reach her at 207-861-3488 or can fax her at 207-861-3470. Mary Louisa Barnhart is MD in Addiction Psychiatry and her NPI number (Unique professional ID assigned by NPPES) is 1811055353.
Mary Louisa Barnhart focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric disorders.
Complete Profile:
Mary Louisa Barnhart speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Mary Louisa Barnhart |
| Specialization: | Addiction Psychiatry |
| Gender: | Female |
| Credentials: | MD |
| Experience: | 46+ years |
| Medical School Attended: | University Of Pittsburgh School Of Medicine |
| Graduation Year: | 1979 |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 10 Water St, Suite 306, Waterville,
Maine, 04901-6559 |
| Phone: | 207-861-3488 |
| Fax: | 207-861-3470 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 6709874936 |
| Enrollment ID: | I20040505000565 |
| NPI Number: | 1811055353 |
| NPI Enumeration Date: | 05 Dec, 2006 |
| NPI Last Update On: | 12 Jan, 2023 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mary Louisa Barnhart are as mentioned below.
| License Number | Specialization | State | Status | |
| 01440 | Addiction Psychiatry | Maine | Primary | |
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name
with which Mary Louisa Barnhart is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| Mainegeneral Medical Center (1254245715) | 455 |
Other Medical Identifiers:
Other legacy medical identifiers associated with Mary Louisa Barnhart such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| 311000099 | Medicaid | Maine | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Mary Louisa Barnhart
Po Box 6283,
China Village, Maine |
| Zip: | 04926-0283 |
| Phone Number: | 207-649-9394 |
Patients can reach Mary Louisa Barnhart at
10 Water St, Suite 306, Waterville, Maine or can
call to book an appointment on 207-861-3488.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.