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Attention New Patients

The New Patient Packet will provide what you need to get started. To download the New Patient Packet click on the link below

download packet Descargar paquete en español

Our Staff


Alejandro Alva M.D.

Dr. Alva received his education at the California State University of Fullerton and the Autonomous University of Guadalajara Medical School.Dr. Alva received his education...

Gustavo Alva M.D.

Dr. Alva is medical director of ATP clinical research (a premiere private clinical research company specializing in neuropsychiatric investigations). He is an Associate...

Sheena Patel, PA-C

Sheena Patel, PA-C completed her undergraduate studies at University of California Irvine, earning a Bachelor's Degree in Biological Sciences.  She concurrently performed...

Yvette Elpidio, MSN, FNP-C

Yvette Elpidio received her Master's degree in nursing with an emphasis on family practice from the California State University at Long Beach. She is Board Certified...

Patients & Visitors

Dr. Alva founded PNS to provide the highest quality treatment in the field of psychiatry, as such PNS serves as a peer recognized model of exemplary mental health care for children, adolescents, adults and seniors.

If you are visiting us as a new patient, for your convenience, you may wish to download and print our "New Patient Packet" located in our home page...

More Information
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Yvette is wonderful...

She is sharp, efficient and able to assess my needs. She will not waste your time. I never wait longer than 15 min ( max) to see her. I highly recommend her:) She also is flexible with adding and changing appointments

-Evelyn D. La Habra, CA

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Dr. Alex Alva Excellent Doctor...

Excellent doctor, very considerate to patients needs. Listens to patient and family members. From www.healthgrades.com

-Lakewood, Feb 1st 2017

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Dr. Alex Alva Great Psychiatrist...

He's a great psychiatrist and was able to get me on medications that changed my life. A God send. From www.healthgrades.com

-J.R.W Irvine, Oct 10th 2016

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Dr. Alex Alva Amazing Human...

Amazing human an angel from God! I have seen many doctors no one helped me like he did , the combination of medication and his attitude towards life is what helped me! From www.healthgrades.com

-Monterey, CA May 4th 2016

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Dr. Gus Alva is one of the Best Psychiatrist...

Dr. Alva by far is one of the best psychiatrist I have seen. He is very to the point, firm and has great communication skill and comforting language. From www.google.com

-Susan Irvani

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Dr. Gus Alva is Awesome...

Awesome Dr. I've had many ups and downs and he sticks at my side through out all these times. I read about all the office issues but very few offices are 100% perfect. From www.google.com

-Sheila Jacobson