Colin Holtzinger is a San Francisco, California based psychologist who is specialized in Clinical Psychology. Active license number of Colin Holtzinger is PSY34174 for Clinical Psychology in California. His current practice location is 2383 California St Ste 3, San Francisco. Patients can reach him at 415-286-5258. Colin Holtzinger is PSYD in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1437630803.
Colin Holtzinger 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:
Colin Holtzinger speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Colin Holtzinger |
| Specialization: | Clinical Psychology |
| Gender: | Male |
| Credentials: | PSYD |
| Practice Address: | 2383 California St Ste 3, San Francisco,
California, 94115-2750 |
| Phone: | 415-286-5258 |
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: | 1437630803 |
| NPI Enumeration Date: | 23 Aug, 2018 |
| NPI Last Update On: | 11 Jul, 2026 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Colin Holtzinger are as mentioned below.
| License Number | Specialization | State | Status | |
| PSY34174 | 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: | Colin Holtzinger
2383 California St Ste 3,
San Francisco, California |
| Zip: | 94115-2750 |
| Phone Number: | 415-286-5258 |
Patients can reach Colin Holtzinger at
2383 California St Ste 3, San Francisco, California or can
call to book an appointment on 415-286-5258.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 July, 2026.