Rosa Ahn-horst is a Palo Alto, California based psychiatrist who is specialized in Psychiatry. Active license number of Rosa Ahn-horst is A201644 for Psychiatry in California. Her current practice location is 401 Quarry Rd, Palo Alto. Patients can reach her at 650-723-5511. Rosa Ahn-horst is MD MPH in Psychiatry and her NPI number (Unique professional ID assigned by NPPES) is 1649822420.
Rosa Ahn-horst 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:
Rosa Ahn-horst speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Rosa Ahn-horst |
| Specialization: | Psychiatry |
| Gender: | Female |
| Credentials: | MD MPH |
| Practice Address: | 401 Quarry Rd, Palo Alto,
California, 94304-1419 |
| Phone: | 650-723-5511 |
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: | 1649822420 |
| NPI Enumeration Date: | 12 Jul, 2019 |
| NPI Last Update On: | 06 Nov, 2025 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Rosa Ahn-horst are as mentioned below.
| License Number | Specialization | State | Status | |
| A201644 | Psychiatry | California | Primary | |
| A201644 | Student in an Organized Health Care Education/Training Program | California | Secondary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Rosa Ahn-horst
401 Quarry Rd,
Palo Alto, California |
| Zip: | 94304-1419 |
Patients can reach Rosa Ahn-horst at
401 Quarry Rd, Palo Alto, California or can
call to book an appointment on 650-723-5511.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.