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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).

Learn more about Dr. Gregory Rihacek:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (9)

The overall average patient rating of Dr. Gregory Rihacek is Good. Dr. Rihacek has been reviewed by 26 patients who have provided 9 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.4
Promptness 3.9
Courteous Staff 3.2
Accurate Diagnosis 4.6
Bedside Manner 4.5
Spends Time with Me 4.4
Follows Up After Visit 3.3

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

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Additional Information
Dr. Gregory Salvatore Rihacek MD is a male Rheumatologist, has 30 years of experience and practices in Rheumatology.
Where does Dr. Gregory S. Rihacek practice?
Dr. Gregory Rihacek has 1 office location.
Dr. Gregory Rihacek practices Rheumatology near Somerset, NJ.
See Somerset Rheumatologists.