Jeffrey James Knowles is a Salem, Oregon based psychiatrist who is specialized in Psychiatry. Active license number of Jeffrey James Knowles is MD22536 for Psychiatry in Oregon. His current practice location is 2600 Center St Ne, Oregon State Hospital Salem, Salem. Patients can reach him at 503-945-2800. Jeffrey James Knowles is MD in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1376618694.
Jeffrey James Knowles 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.
Complete Profile:
Jeffrey James Knowles speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Jeffrey James Knowles |
| Specialization: | Psychiatry |
| Gender: | Male |
| Credentials: | MD |
| Practice Address: | 2600 Center St Ne, Oregon State Hospital Salem, Salem,
Oregon, 97301 |
| Phone: | 503-945-2800 |
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.
| NPI Number: | 1376618694 |
| NPI Enumeration Date: | 21 Nov, 2006 |
| NPI Last Update On: | 08 Jul, 2007 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Jeffrey James Knowles are as mentioned below.
| License Number | Specialization | State | Status | |
| MD22536 | Psychiatry | Oregon | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Jeffrey James Knowles
Po Box 14900, State Of Oregon Irs Init
Salem, Oregon |
| Zip: | 97309-5016 |
| Phone Number: | 503-945-9840 |
Patients can reach Jeffrey James Knowles at
2600 Center St Ne, Oregon State Hospital Salem, Salem, Oregon or can
call to book an appointment on 503-945-2800.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.