4.1
31 Ratings with 4 written Reviews

![]() | ![]() | ![]() | ![]() |
| Dr. Gregg Allen Sentenn, MD | Dr. Yousuf Allawala, MD | Dr. Seung Lee, MD, MBE | Dr. William Milton Gillespie, MD |
| Psychiatry | Psychiatry | Psychiatry | Psychiatry |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 54 Years of Experience | 44 Years of Experience | 9 Years of Experience | 33 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks English, Hindi, Urdu | Speaks Korean, English | Speaks English, Spanish | |
| Brea , CA | Long Beach , CA | Ontario , CA | Glendora , CA |
| Med School: Loma Linda University School Of Medicine | Med School: Dow Medical College in Pakistan | Med School: Perelman School of Medicine at the University of Pennsylvania | Med School: David Geffen School Of Medicine At Ucla |
Current Profile | View Profile | View Profile | View Profile |
Graduated from Loma Linda University School Of Medicine in 1972.
Dr. Sentenn's NPI number is 1508998329.










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.