Psychiatrist

Dr. Deanna L. Armstrong, M.D.

2755 Colonial Dr, Helena, Montana, 59601-4926

About Dr. Deanna L. Armstrong

Dr. Deanna L. Armstrong is a psychiatrist based in Helena, Montana who is specialized in Psychiatry. Active license number of Dr. Deanna L. Armstrong is MED-PHYS-LIC-101070 for Psychiatry in Montana. Her current practice location is 2755 Colonial Dr, Helena. Patients can contact her at 406-444-7500 or can fax her at 406-884-2085. Dr. Deanna L. Armstrong, M.D., specializes in Psychiatry and her NPI number (Unique professional ID assigned by NPPES) is 1003900184.

Dr. Deanna L. Armstrong specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Practice Information

Dr. Deanna L. Armstrong's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Dr. Deanna L. Armstrong
Specialization Psychiatry
Credentials M.D.
Gender Female
Practice Address: 2755 Colonial Dr,
Helena, MT - 59601-4926
Fax 406-884-2085

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1003900184
NPI Enumeration Date: 03 Oct, 2006
NPI Last Update On: 06 May, 2024

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Dr. Deanna L. Armstrong are as mentioned below.

License NumberSpecializationStateStatus
MED-PHYS-LIC-101070Psychiatry MontanaPrimary

Other Medical Identifiers

Other professional identifiers associated with Dr. Deanna L. Armstrong such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
1003900184MedicaidWashington

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Dr. Deanna L. Armstrong
Po Box 5539,
Helena, MT - 59604-5539
Phone: 406-238-2500
Fax: 406-884-2085

Book an Appointment with Dr. Deanna L. Armstrong

To schedule an appointment, contact Dr. Deanna L. Armstrong at 2755 Colonial Dr, Helena, Montana or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Deanna L. Armstrong:

Dr. Deanna L. Armstrong is a psychiatrist specializing in Psychiatry. She specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Yes, Dr. Deanna L. Armstrong is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Dr. Deanna L. Armstrong practices at 2755 Colonial Dr, Helena, Montana, 59601-4926.

To schedule an appointment with Dr. Deanna L. Armstrong, please contact the office at 406-444-7500.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.