Psychologist | Addiction (Substance Use Disorder) Psychology

Dr. Eric John Niemeyer, PSY. D.

421 Nut Tree Road, Vacaville, California, 95688

About Dr. Eric John Niemeyer

Dr. Eric John Niemeyer is a psychologist based in Vacaville, California who is specialized in Addiction (Substance Use Disorder) Psychology. Active license number of Dr. Eric John Niemeyer is 25842 for Clinical Psychology in California. His current practice location is 421 Nut Tree Road, Vacaville. Patients can contact him at 707-624-7500 or can fax him at 707-624-7501. Dr. Eric John Niemeyer, PSY. D., specializes in Addiction (Substance Use Disorder) Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1154584894.

Dr. Eric John Niemeyer help patients to develop ways to cope with their drug cravings. Also, he can suggest strategies to avoid drugs and prevent relapse, and can offer suggestions on how to deal with a relapse if it occurs. He make patients more aware of their feelings, thoughts and teach them different ways to deal with their problems.

Practice Information

Dr. Eric John Niemeyer'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. Eric John Niemeyer
Specialization Addiction (Substance Use Disorder) Psychology
Credentials PSY. D.
Gender Male
Practice Address: 421 Nut Tree Road,
Vacaville, CA - 95688
Fax 707-624-7501

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 Number1154584894
NPI Enumeration Date: 02 Jul, 2008
NPI Last Update On: 08 Dec, 2022

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. Eric John Niemeyer are as mentioned below.

License NumberSpecializationStateStatus
25842Clinical Psychology CaliforniaPrimary
Addiction (Substance Use Disorder) Psychology Secondary
Health Service Psychology Secondary

Mailing Address

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

Dr. Eric John Niemeyer
101 Parkshore Dr,
Folsom, CA - 95630-4726
Phone: 530-400-0620

Book an Appointment with Dr. Eric John Niemeyer

To schedule an appointment, contact Dr. Eric John Niemeyer at 421 Nut Tree Road, Vacaville, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Eric John Niemeyer:

Dr. Eric John Niemeyer is a psychologist specializing in Clinical Psychology. He is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Eric John Niemeyer 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. Eric John Niemeyer practices at 421 Nut Tree Road, Vacaville, California, 95688.

To schedule an appointment with Dr. Eric John Niemeyer, please contact the office at 707-624-7500.

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