Dr. Mark Williams Stevens
PH.D. | Clinical Psychologist
13525 Midland Rd, Suite J, Poway
California, 92064-4771
858-207-8322 858-748-8050
Maps & DirectionsDr. Mark Williams Stevens is a Poway, California based psychologist who is specialized in Clinical Psychology. Active license number of Dr. Mark Williams Stevens is 20859 for Clinical Psychology in California. His current practice location is 13525 Midland Rd, Suite J, Poway. Patients can reach him at 858-207-8322 or can fax him at 858-748-8050. Dr. Mark Williams Stevens is PH.D. in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1336269398.
Dr. Mark Williams Stevens 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.
Complete Profile:
Dr. Mark Williams Stevens speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Dr. Mark Williams Stevens |
| Specialization: | Clinical Psychology |
| Gender: | Male |
| Credentials: | PH.D. |
| Practice Address: | 13525 Midland Rd, Suite J, Poway,
California, 92064-4771 |
| Phone: | 858-207-8322 |
| Fax: | 858-748-8050 |
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: | 1336269398 |
| NPI Enumeration Date: | 30 Mar, 2007 |
| 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 Dr. Mark Williams Stevens are as mentioned below.
| License Number | Specialization | State | Status | |
| 20859 | Clinical Psychology | California | 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: | Dr. Mark Williams Stevens
13525 Midland Rd, Suite J
Poway, California |
| Zip: | 92064-4771 |
| Phone Number: | 858-207-8322 |
| Fax Number: | 858-748-8050 |
Patients can reach Dr. Mark Williams Stevens at
13525 Midland Rd, Suite J, Poway, California or can
call to book an appointment on 858-207-8322.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.