Meet the Doctor
Dr. Perera has helped thousands of people over the past 40 years. Even with today's advanced options, his most important diagnostic tool is a personal consultation and review of your health history. Only by listening and treating you as an individual can he find the treatment that's precisely right for you. Working together with you and your family doctor, we deliver the freedom you seek from seasonal and perennial allergies, asthma and immunodeficiencies.
Board-Certified:
American Board of Allergy & Immunology, a conjoint board of the American Board of Internal Medicine & the American Board of Pediatrics
Fellow:
American Academy of Allergy, American College of Allergists
KCRA Channel 3 & the National Allergy Bureau Weekly Pollen & Mold Count Provider
Maria "Rose" Rosario DeVega, Family Nurse Practitioner (FNP)
Trusted care, delivered with compassion.
She is a trusted and compassionate provider who has been caring for our patients for over two years at Allergy Medical Group .
Rose is known for her patient-first approach, taking the time to listen, educate, and ensure each person feels heard and supported. Whether she’s managing allergy care plans, answering questions, or helping patients navigate complex symptoms, She brings knowledge, empathy, and a calm presence to every visit.
Marjorie Waters, Certified Physician Assistant (PAC)
Bringing Nearly 20 Years of Allergy and Patient Care Expertise to Our Community
With nearly two decades of experience treating patients across Northern California, Marjorie brings exceptional clinical expertise and a strong commitment to high-quality, personalized care.
Marjorie is passionate about helping people feel their best. She takes the time to listen, explain, and work closely with each patient to create care plans that are clear, effective, and personalized. Her warm and approachable style helps patients feel comfortable and confident in their care.
From allergy testing to ongoing treatment, Marjorie is here to provide the high-quality support you and your family can count on.