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Dr. Gregory Rihacek, MD

Dr. Gregory Rihacek, MD

Rheumatologist

Somerset, NJ

37 Years of Experience

Accepting patients

    Who is Dr. Rihacek, Rheumatologist in Somerset, NJ?

    Dr. Gregory Rihacek, MD is a Rheumatologist, who primarily practices in Somerset, NJ. He has been practicing for over 37 years and is board certified. Dr. Rihacek graduated from Rutgers and completed his residency at Cedars-Sinai Med Ctr, Rheumatology; Deaconess Hosp, Internal Medicine. Dr. Rihacek is fluent in English, German, Italian, and Spanish, and is currently seeing new patients. Dr. Rihacek’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Rihacek’s office.

    Where did Dr. Rihacek go to medical school and complete their residency?

    • Residency: Cedars-Sinai Med Ctr, Rheumatology; Deaconess Hosp, Internal Medicine | Deaconess Hospital Program

    • Medical School: Umdnj-Robt W Johnson Med Sch- New Brunswick Nj | Rutgers

    Is Dr. Rihacek board certified as a Rheumatologist?

    Yes, Dr. Gregory Rihacek, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Rihacek speak?

    Dr. Rihacek and their clinical team can communicate with patients in the following languages:

    • English
    • German
    • Italian
    • Spanish

    What conditions does a Rheumatologist like Dr. Rihacek typically treat?

    As a Rheumatologist, Dr. Rihacek diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Rihacek. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Rheumatoid Arthritis Affecting Other Body Parts
    • Rheumatoid Arthritis
    • Systemic Rheumatoid Arthritis
    • RA with organ involvement
    • Rheumatoid disease affecting multiple systems

    ICD-10 Codes:

    • M0569: Rheumatoid arthritis of multiple sites with involvement of other organs and systems

    Also known as:

    • Degenerative Disc Disease in Lower Back
    • Spine Injuries and Disorder
    • Spinal Disc Degeneration
    • Lumbosacral Disc Degeneration
    • Worn Spinal Discs

    ICD-10 Codes:

    • M5137: Other intervertebral disc degeneration, lumbosacral region

    Also known as:

    • Lupus with Organ Involvement
    • Lupus
    • Systemic Lupus Erythematosus
    • SLE Affecting Organs
    • Lupus Complications

    ICD-10 Codes:

    • M3219: Other organ or system involvement in systemic lupus erythematosus

    Also known as:

    • Osteoarthritis of both knees
    • Osteoarthritis
    • Degenerative joint disease
    • Wear-and-tear arthritis
    • Arthrosis
    • Joint degeneration

    ICD-10 Codes:

    • M170: Bilateral primary osteoarthritis of knee

    Also known as:

    • Psoriatic Arthritis Mutilans
    • Psoriatic Arthritis
    • Psoriasis
    • Severe Psoriatic Arthritis
    • Deforming Psoriatic Arthritis
    • Arthritis Mutilans

    ICD-10 Codes:

    • L4052: Psoriatic arthritis mutilans

    Also known as:

    • Polymyalgia Rheumatica
    • Polymyalgia Rheumatica and Giant Cell Arteritis
    • PMR
    • Inflammatory Rheumatism

    ICD-10 Codes:

    • M353: Polymyalgia rheumatica

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Inflammatory Arthritis
    • Arthritis
    • Inflammatory joint disease
    • Polyarthritis
    • Chronic inflammatory arthritis

    ICD-10 Codes:

    • M064: Inflammatory polyarthropathy

    What procedures does a Rheumatologist like Dr. Rihacek typically perform?

    As a Rheumatologist, procedures performed by Dr. Gregory Rihacek may include:

    Please contact Dr. Rihacek's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Rihacek accept my insurance?

    Dr. Rihacek accepts most major insurance plans. Important: Please contact the office before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Rihacek accept in Somerset, NJ?

    Dr. Rihacek in Somerset, NJ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Cigna Group

    • CVS Health (formerly Aetna)

    • EmblemHealth

    • Horizon BlueCross BlueShield

    • Humana

    • Medicare

    • Mutual of Omaha

    • Service Employees International Union (SEIU)

    • Transamerica

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Rihacek's office located?

    Dr. Gregory Rihacek's Primary Practice

    19 Clyde Rd Ste 101

    Somerset, NJ 08873

    Get Directions

    What hospitals are Dr. Rihacek affiliated with?

    Dr. Rihacek has admitting privileges at the following hospitals:

    UCSF Health St. Mary's Hospital,San Francisco, CA

    What is Dr. Rihacek's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Rihacek's National Provider Identifier (NPI) number is 1114992773.

    What common questions do patients ask about Dr. Rihacek?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Rihacek

    What is Dr. Gregory Rihacek's specialty?

    Dr. Rihacek is a Rheumatologist near Somerset, NJ.

    What does a Rheumatologist do?

    An internist specializing in the treatment of diseases affecting the joints, muscles, bones, and tendons. This specialist diagnoses and manages conditions such as arthritis, back pain, muscle strains, common sports injuries, and collagen-related diseases.

    Is Dr. Gregory Rihacek affiliated with a ranked Castle Connolly Top Hospital?

    No, Dr. Rihacek is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: UCSF Health St. Mary's Hospital. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see a Rheumatologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Rheumatologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Dr. Gregory Rihacek accepting new patients in Somerset, NJ?

    Yes, Dr. Gregory Rihacek is accepting new patients at this time.

    Does Dr. Gregory Rihacek offer online booking?

    Please contact Dr. Rihacek's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Gregory Rihacek?

    Please contact Dr. Rihacek's office to schedule an appointment.

    Where is Dr. Rihacek's office located?

    Dr. Rihacek's office is located in Somerset, NJ.

    Which board certifications does Dr. Gregory Rihacek have?

    Dr. Gregory Rihacek is certified by the American Board of Internal Medicine.