4.6
9 Ratings with 7 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.
![]() | ![]() | ![]() | ![]() |
| Sandra Lewis, MD | Dr. Madhan Nellaiyappan, MD | Dr. Benjamin Robert Levin, MD | Dr. Robert Charles Oram, MD |
| Cardiovascular Disease | Cardiovascular Disease | Cardiovascular Disease | Thoracic Surgery |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 49 Years of Experience | 14 Years of Experience | 22 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 | |||
| Portland , OR | Vancouver , WA | Portland , OR | Bellingham , WA |
| Med School: Stanford Univ Sch Of Med- Stanford Ca | Med School: Institute Of Road Transport Perunthurai Medical College | Med School: Boston University School Of Medicine | Med School: Schulich School Of Medicine & Dentistry |
Current Profile | View Profile | View Profile | View Profile |
Sandra Lewis holds an expired medical license in the state of Oregon. They are board certified in Internal medicine by the American Board of Internal Medicine.
Board certified in Internal medicine by the American Board of Internal Medicine.
Medical Doctor with an expired medical license in the state of Oregon that expired in 2025.
Completed their residency at Stanford Univ Hosp, Cardiovascular Diseases; Stanford Univ Hosp, Internal Medicine.
Graduated from Stanford Univ Sch Of Med- Stanford Ca in 1977.
Sandra Lewis' NPI number is 1427040179.










Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.