Please be sure to complete and submit your patient forms prior to your appt by clicking here.

About the Practice

Pleasanton Allergy & Dermatology - Serving our beloved Trivalley Community since 1971. 

Pleasanton Allergy and Dermatology in Pleasanton, California, was the First Allergy Clinic established in the TriValley area. Our team, which includes Sarah Coates, MD, and Farinaz Farrahi, MD, added Dermatology to better serve the needs of our patients and quickly grew into a full-service Dermatology office, including medical, surgical, pediatric, and cosmetic dermatology. Since that time, we have continued to maintain a high standard of board physicians from the University of California, San Francisco, as well as Stanford University.  

Pleasanton Allergy and Dermatology is committed to helping patients live a healthier life, free from the symptoms of allergies, asthma, and skin-related conditions. When patients visit the office, the team listens to their concerns and develops a comprehensive plan. Patients will never have unanswered questions or be in the dark about their health. The physicians and staff are equipped to handle any of their Allergy, Asthma, or Dermatology needs and ensure they are the healthiest they can be. 

Allergies represent an unusually reactive response of the immune system. Substances that usually cause no reaction can trigger sneezing, wheezing, coughing, and itching in people with allergic illnesses. Allergies are not only annoying but may be linked to serious diseases such as sinusitis, rhinitis, asthma, and other chronic diseases of the respiratory tract. Allergic reactions can be severe and even fatal. Fortunately, with proper management, allergic diseases can be controlled. Under the care of the allergists at Pleasanton Allergy and Dermatology, people with allergies lead normal, productive, and healthy lives.

Dermatologists at Pleasanton Allergy and Dermatology specialize in medical, surgical, and pediatric skin care as well as all aspects of cosmetic dermatology. We provide solutions and treatment for a wide range of skin conditions, including acne, rosacea, and warts. Pleasanton Allergy and Dermatology also offers cosmetic dermatology for patients who desire cosmetic treatments, including Botox® and a full range of laser services, including hair removal and skin rejuvenation.  

Dr. Beth Cowan, an Obstetrician/Gynecologist, and daughter of the original founder, Michael N. Cowan, MD, joined the practice in 2005, adding Women’s Health to the list of specialties we provide.

For your safety, the practice is taking extensive safety and sanitation measures in response to the pandemic and offering telehealth appointments to ensure the health of their patients. For exceptional care, contact the office by phone or book an appointment online today. 

We are committed to helping you lead a healthier life, free from the symptoms of Allergies and Asthma, and to taking care of all of your skin care and Dermatology needs. Our individualized treatment plans, which include, evaluation, assessment, allergy testing, allergy immunotherapy, advanced pharmaceutical treatment, and pathogen avoidance counseling, are tailored to meet your unique individual needs in this high pollen, high sun exposure area. Addtionally,our dermatology division is committed to keeping your skin healthy, vibrant, free of skin cancer, acne and rashes, as well as meeting your cosmetic needs including skin rejuvenation, laser hair removal and botox treatments.

Our Board Certified Physicians include experienced experts in Allergy, Asthma, and Immunology and Dermatology. All of our caring professionals practice medicine with the utmost integrity, compassion and sense of community.


In 2004, Dr. Beth Cowan joined her father, the founder of Pleasanton Allergy & Dermatology, to add women's health services to this unique, first of its kind practice.


Insurance Providers

We accept most insurances. If you do not see yours listed, please contact our front office to confirm.

Anthem Blue Cross Blue Shield
Community Health Group
Optum Health
TriWest Healthcare Alliance
UnitedHealthcare Oxford

Choose Your Provider

Pleasanton Allergy and Dermatology
2324 Santa Rita Road, Suite 2
Pleasanton, CA 94566
Phone: 925-846-5100
Office Hours

Get in touch


Office hours may vary due to COVID-19, please contact our front office to confirm.