Psychiatrist

Mr. Jeffrey Howard Zwerin, DO

2100 Napa-vallejo Highway, Napa, California, 94558-6293

About Mr. Jeffrey Howard Zwerin

Mr. Jeffrey Howard Zwerin is a psychiatrist based in Napa, California who is specialized in Psychiatry. Active license number of Mr. Jeffrey Howard Zwerin is 20A4396 for Psychiatry in California. His current practice location is 2100 Napa-vallejo Highway, Napa. Patients can contact him at 707-253-5000 or can fax him at 707-253-5513. Mr. Jeffrey Howard Zwerin, DO, specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1104879865.

Mr. Jeffrey Howard Zwerin 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

Mr. Jeffrey Howard Zwerin'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 Mr. Jeffrey Howard Zwerin
Specialization Psychiatry
Credentials DO
Gender Male
Practice Address: 2100 Napa-vallejo Highway,
Napa, CA - 94558-6293
Fax 707-253-5513

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 Number1104879865
NPI Enumeration Date: 17 May, 2006
NPI Last Update On: 13 Jul, 2026

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 Mr. Jeffrey Howard Zwerin are as mentioned below.

License NumberSpecializationStateStatus
20A4396Psychiatry CaliforniaPrimary

Mailing Address

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

Mr. Jeffrey Howard Zwerin
1600 9th Street, Room 205 Mailstop 2-3
Sacramento, CA - 95814-6414
Phone: 916-654-2431
Fax: 916-654-3186

Book an Appointment with Mr. Jeffrey Howard Zwerin

To schedule an appointment, contact Mr. Jeffrey Howard Zwerin at 2100 Napa-vallejo Highway, Napa, California or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Mr. Jeffrey Howard Zwerin:

Mr. Jeffrey Howard Zwerin is a psychiatrist specializing in Psychiatry. He 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, Mr. Jeffrey Howard Zwerin 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.

Mr. Jeffrey Howard Zwerin practices at 2100 Napa-vallejo Highway, Napa, California, 94558-6293.

To schedule an appointment with Mr. Jeffrey Howard Zwerin, please contact the office at 707-253-5000.

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