4
3 Ratings

Overview based on verified provider data
![]() | ![]() | ![]() | ![]() |
| Dr. Roger Taylor Phelps, MD | Dr. Tooba Rehman, MD | Dr. Nima Ghadimi, MD | Karthikeyan Viswanathan, DO |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 47 Years of Experience | 16 Years of Experience | 29 Years of Experience | 12 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English, Spanish | Speaks English, Tamil | |
| PIEDMONT , CA | Katy , TX | Scottsdale , AZ | Palo Alto , CA |
| Med School: Johns Hopkins University School Of Medicine | Med School: CHICAGO MEDICAL SCHOOL AT ROSALIND FRANKLIN UNIVERSITY OF MEDICINE & SCIENCE | Med School: Univ Iberoamericana Unibe Santo Domingo | Med School: Bassett Medical Center - Cooperstown, New York |
Current Profile | View Profile | View Profile | View Profile |
Dr. Roger Taylor Phelps holds an active medical license in the state of California.
Medical Doctor with an active medical license in the state of California.
Completed their residency at Baylor College Of Medicine.
Graduated from Johns Hopkins University School Of Medicine in 1979.
Dr. Phelps' NPI number is 1629188990.










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.