4.1
7 Ratings with 1 written Review
Summary
Dr. John O'Holleran treats appendicitis, diverticular disease, and diverticulitis, and performs appendectomy, emergency care, and laparoscopy. He practices surgery and is affiliated with Sequoia Hospital. With 39 years of experience, he brings a long career in surgery to his patients.
He completed his residency at Exempla St. Joseph General Surgery Residency Program in 1992 and attended the University of Nebraska for medical school. He sees patients in Oregon City, Oregon.
He completed his residency at Exempla St. Joseph General Surgery Residency Program in 1992 and attended the University of Nebraska for medical school. He sees patients in Oregon City, Oregon.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 39 years of experience
- 30 insurance plans accepted
- speaks English
- Exempla St Joseph General Surgery Residency Program
- 1 written review
- 2 specialties
- 3 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Location
Providence Surgery Clinic - Southeast at Willamette Falls
1510 Division St Ste 210Oregon City, OR 97045 Tel: (503) 723-6525
Compare with Similar Doctors
 |  |  | |
| John David O'holleran, MD | Dr. Matthew Lewis, MD | Dr. Monirath Saly, MD | Dr. Gregory P Delgado, MD |
| Surgery | Surgery | Critical Care Medicine | Oral & Maxillofacial Surgery |
| Accepts New Patients | Accepts New Patients | ||
| 39 Years of Experience | 16 Years of Experience | 18 Years of Experience | 39 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English | Speaks English |
| Oregon City , OR | Portland , OR | Kirkland , WA | Vancouver , WA |
| Med School: University of Nebraska | Med School: Oregon Health & Science University School Of Medicine | Med School: University Of Nevada School Of Medicine | Med School: Oregon Health & Science University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by John David O'holleran
Medical Specialties
John David O'holleran has the following 2 specialties
Specialty Expertise
John David O'holleran has the following 3 areas of expertise
Certifications, License, & Education
39 Years Experience
John David O'holleran holds an expired medical license in the state of Oregon.
Medical License
Medical Doctor with an expired medical license in the state of Oregon that expired in 2025.
Education & Training
Residency
Completed their residency at Exempla St Joseph General Surgery Residency Program in 1992.
Medical School
Graduated from University of Nebraska in 1987.
NPI Number
John David O'holleran's NPI number is 1912007220.
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Frequently Asked Questions
- Where is John O'holleran's office located?
- John O'holleran's office is located at 1510 Division St Ste 210, Oregon City, OR, 97045.
- Which hospitals is John O'holleran affiliated with?
- John O'holleran is affiliated with Sequoia Hospital.
- Does John O'holleran accept virtual/telehealth appointments?
- John O'holleran has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- What languages does John O'holleran speak?
- John O'holleran speaks English.
- Does John O'holleran accept my insurance?
- You can see the insurance plans that John O'holleran accepts on their Vitals profile.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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