4.7
51 Ratings with 42 written Reviews

Overview based on verified provider data
Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.
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| Patrick Sean O'hollaren, MD | Dr. Matthew Lewis, MD | Dr. Robert Lawrence, MD | Dr. Judith Ann Bays, MD |
| Surgery | Surgery | Allergy & Immunology | Pediatrics |
| Accepts New Patients | Accepts New Patients | ||
| 39 Years of Experience | 16 Years of Experience | 50 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | ||
| Portland , OR | Portland , OR | Portland , OR | Portland , OR |
| Med School: Oregon Health & Science University School of Medicine | Med School: Oregon Health & Science University School Of Medicine | Med School: Medical College Of Wisconsin | |
Current Profile | View Profile | View Profile | View Profile |
Patrick Sean O'hollaren holds an expired medical license in the state of Oregon.
Medical Doctor with an expired medical license in the state of Oregon that expired in 2025.
Completed their fellowship at Texas Childrens Hospital in 1994.
Completed their residency at Yale New Haven Hospital in 1992, Yale-New Haven Hospital in 1992, Yale University School of Medicine in 1989, and Yale-New Haven Hospital in 1989.
Completed their internship at Yale University Internal Medicine Residency in 1988.
Graduated from Oregon Health & Science University School of Medicine in 1987.
Patrick Sean O'hollaren's NPI number is 1891782868.










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