Dr. Gregory Rihacek, MD
New Patients

Dr. Gregory Rihacek, MD


Rheumatology | Male


Dr. Gregory Rihacek, MD is a rheumatology doctor who practices in Somerset, NJ. He is 59 years old and has been practicing for 35 years. Dr. Rihacek is affiliated with RWJ University Hospital New Brunswick, Saint Peter's University Hospital and RWJ University Hospital Somerset.

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Dr. Rihacek's Experience

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Visiting Dr. Rihacek

Dr. Rihacek accepts 15 insurance carriers

Affiliated Hospitals

Hospital Quality
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Dr. Rihacek's Reviews

Likelihood of recommending Dr. Rihacek to family and friends
based on 27 total surveys (4 with reviews)
Dr. Rihacek's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Reviews (4)
in Somerset, NJ |
i was left without a quality of life medicine causing me to be unable to walk or be mobile. The office refused to see my wife and sent her a letter they would not see her. The letter did not include me. My script of Enbrel needed refilling. the pharmacy called the doctors office and they refused to fill it. I called the office and they refused to give me a appointment or refill my medicine because of my wife's situation. No office should leave you with out a doctor or the medicine needed.
Hillsborough, NJ |
I have been a patient of his for well over 10 years now. I have referred friends and family to him because I trust him implicitly. I have been to other rheumatologists and they have not compared to his compassion and treatment. He is not in network with my current insurance and I pay out of pocket because of how good I feel he is.
in Somerset, NJ |
Incorrect diagnosis lead to several months of extra pain and suffering that was completely unnecessary. The next doctor I saw got to the correct diagnosis and started an effective treatment plan after only two visits. Dr. Rihacek could not admit he made a mistake and responded to my questions about his with rudeness and unbelievably aggressive and inappropriate (thankfully, as it lead me to find a better doctor).
in Parlin, NJ |
I was a patient for more than 10 years. He's a caring doctor with an excellent staff. If closer to home (and not out of network), I'd still be there.
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Dr. Rihacek's experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Rheumatology
  •  Board certified in Internal Medicine and Rheumatology
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
    What is a recognized doctor
  • Media & Publications

    Dr. Rihacek has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for New Jersey.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Board Certifications

Why It Matters: Dr. Rihacek's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Internal Medicine
  • Rheumatology

Conditions Treated

  • Adhesive Capsulitis
  • Ankylosing Spondylitis
  • Arthritis
  • Autoimmune Diseases
  • Behçet's Disease
  • Bleeding Disorders
  • Bone Disorders
  • Bursitis
  • Carpal Tunnel Syndrome
  • Chronic Neck Pain
  • Chronic Pain
  • Classic Polyarteritis Nodosa
  • Degenerative Disc Disease
  • Dermatomyositis
  • Enthesopathy of Hip (incl. Trochanteric Bursitis)
  • Enthesopathy of Knee (incl. Bursitis of Knee)
  • Fibromyalgia
  • Foot Conditions
  • Gout
  • Hand Conditions
  • Immune Thrombocytopenic Purpura (ITP)
  • Intervertebral Disc Disease
  • Joint Pain
  • Knee Disorders
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Limb Pain
  • Low Back Pain
  • Lupus
  • Lyme Disease
  • Malaise and Fatigue
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Patellofemoral Pain Syndrome or Knee Pain
  • Polymyalgia Rheumatica (PMR)
  • Polymyositis
  • Psoriatic Arthritis
  • Pulmonary Disease
  • Raynaud's Disease
  • Rheumatoid Arthritis
  • Sarcoidosis
  • Shoulder Disorders
  • Sjögren's Syndrome
  • Spine Disorders
  • Spondylitis
  • Systemic Sclerosis
  • Trigger Finger
  • Vascular Disease
  • Vasculitis
  • Wegener's Granulomatosis


  • Medical School
    Rutgers University / New Brunswick Campus

    Graduated in 1982

  • Internship Hospital
    New Engl Deaconess Hospital

    Completed in 1983

  • Residency Hospital
    New Engl Deaconess Hospital

    Completed in 1985

  • Fellowship Hospital
    Cedars Sinai Med Center

    Completed in 1987

Languages Spoken

  • English
  • Italian
  • Spanish

Memberships &
Professional Affiliations

Dr. Rihacek does not have any memberships or affiliations listed. If you are Dr. Rihacek and would like to add memberships or affiliations, please update your free profile.


  • Rheumatology

Procedures Performed

  • Joint Drainage
  • Myofascial Trigger Point Injection
  • Steroid Injection
  • Trigger Point Injection