Browse Health
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (10)

The overall average patient rating of Dr. Gregory Rihacek is Good. Dr. Rihacek has been reviewed by 20 patients who have provided 10 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.2
Promptness 3.7
Courteous Staff 3.4
Accurate Diagnosis 4.7
Bedside Manner 4.5
Spends Time with Me 4.3
Follows Up After Visit 3.4

Specialties & Research

Dr. Gregory Rihacek, MD is board certified in Rheumatology.

  • He has special expertise in 5 areas:
  • Hip Osteoarthritis
  • Knee Osteoarthritis
  • Osteoarthritis (Hand and Wrist)
  • Rheumatic Diseases
  • Rheumatoid Arthritis

Education & Awards

Dr. Rihacek graduated from UMDNJ Robert Wood Johnson, Piscataway. He has 3 awards.

Patients' Choice Award (2008 - 2010)
Compassionate Doctor Recognition (2014)
Top 10 Doctor - State (2014)
New Jersey


Dr. Rihacek has 4 hospital affiliations:

  • Robert Wood Johnson Univ Hosp 
  • Saint Peter's University Hospital 


  • Italian
  • Spanish
  • German

> > > > Dr. Gregory Rihacek, MD

Similar doctors nearby

Dr. Nayan Kothari

Internal Medicine
50 years experience
New Brunswick, NJ

Dr. Lakshmi Moorthy

16 years experience
New Brunswick, NJ

Dr. Evelyn David

New Brunswick, NJ

Dr. Lori Cox

19 years experience
New Brunswick, NJ

Dr. Leonard Sigal

Internal Medicine
35 years experience
New Brunswick, NJ

Dr. Keith Gilmer

25 years experience
New Brunswick, NJ
Search All Similar Doctors
Additional Information
Dr. Gregory Salvatore Rihacek MD is a male Rheumatologist, has 29 years of experience and practices in Rheumatology.
Where does Dr. Gregory S. Rihacek practice?
Dr. Gregory Rihacek has 2 office locations.
Dr. Gregory Rihacek practices Rheumatology near Somerset, NJ.
Additional practice locations include: Old Bridge, NJ.
See Somerset Rheumatologists.