Tammy A O'Brien, MD

Doctor
5.0

1 reviews

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About This Business

Tammy A O'Brien, MD, practices family medicine in Cedar Rapids, Iowa, with 31 years of experience since graduating from the University of Iowa R.J. and L. Carver College of Medicine in 1995, above the 26-year average among Cedar Rapids physicians in our directory. She holds an active Iowa license and is affiliated with Mercy Medical Center - Cedar Rapids and St. Luke's Hospital. In MIPS, the federal program scoring Medicare clinicians on quality and cost, she holds 80.9 out of 100. She accepts Medicare; telehealth is not currently listed among her services. Patients rate her 5.0 across one review.

Verified Provider Info

Specialty (per registry)
Family Medicine
NPI Number
1184703571
Medical school graduate
1995 (31+ years of practice)
Medical school
UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
State license
31465 (IA)
Hospital affiliations
Mercy Medical Center - Cedar Rapids · St Lukes Hospital
Quality score (CMS MIPS)
80.9/100
Accepts Medicare

Source: NPPES NPI Registry (CMS) · CMS Doctors & Clinicians dataset · checked 2026-08-19

Address

500 8th Ave SE
Cedar Rapids, IA 52401

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Information last updated: August 23, 2026