4.6
7 Ratings

Overview based on verified provider data
![]() | |||
| Joan Harrison, MD | Dr. Lunia Collado, MD | Dr. Austin Ritter, DO | Dr. Karen L. Garibaldi, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | |||
| 40 Years of Experience | |||
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks Spanish, English | Speaks English | Speaks English |
| Tiverton , RI | Providence , RI | Providence , RI | Providence , RI |
| Med School: St Georges University School Of Medicine | Med School: University Of Connecticut School Medicine | ||
Current Profile | View Profile | View Profile | View Profile |
Joan Harrison holds active and expired medical licenses in the states of Massachusetts and Rhode Island.
Medical Doctor with an active medical license in the state of Massachusetts that expires in 2026 and an expired medical license in the state of Rhode Island that expired in 2026.
Completed their residency at Summa Health System.
Graduated from St Georges University School Of Medicine in 1986.
Joan Harrison's NPI number is 1164424123.










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.