Dr. Warren Ritchie Christianson Ii
D.O. | Psychiatry | 21+ years Exp
2400 Mission St, San Marino
California, 91108-1632
626-403-8999 626-403-8989
Maps & DirectionsDr. Warren Ritchie Christianson Ii is a San Marino, California based psychiatrist with 21 years of experience in Psychiatry. He completed his graduation in 2004. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Warren Ritchie Christianson Ii is 20A9664 for Psychiatry in California. His current practice location is 2400 Mission St, San Marino. Patients can reach him at 626-403-8999 or can fax him at 626-403-8989. Dr. Warren Ritchie Christianson Ii is D.O. in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1932359445.
Dr. Warren Ritchie Christianson Ii 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:
Dr. Warren Ritchie Christianson Ii 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. Warren Ritchie Christianson Ii |
| Specialization: | Psychiatry |
| Gender: | Male |
| Credentials: | D.O. |
| Experience: | 21+ years |
| Medical School Attended: | Other |
| Graduation Year: | 2004 |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 2400 Mission St, San Marino,
California, 91108-1632 |
| Phone: | 626-403-8999 |
| Fax: | 626-403-8989 |
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.
| PAC ID: | 5597936963 |
| Enrollment ID: | I20110914000671 |
| NPI Number: | 1932359445 |
| NPI Enumeration Date: | 22 Sep, 2008 |
| NPI Last Update On: | 21 Sep, 2011 |
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. Warren Ritchie Christianson Ii are as mentioned below.
| License Number | Specialization | State | Status | |
| 20A9664 | Psychiatry | California | Primary | |
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name
with which Dr. Warren Ritchie Christianson Ii is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| San Marino Psychiatric Associates Inc (6709864895) | 4 |
| Vista Community Clinic (0042120156) | 12 |
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. Warren Ritchie Christianson Ii
2400 Mission St,
San Marino, California |
| Zip: | 91108-1632 |
| Phone Number: | 626-403-8999 |
| Fax Number: | 626-403-8989 |
Patients can reach Dr. Warren Ritchie Christianson Ii at
2400 Mission St, San Marino, California or can
call to book an appointment on 626-403-8999.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.