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 by the American Board of Internal Medicine. 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, UnitedHealthcare 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 in 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 Dr. Rihacek 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.
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:
- Osteoarthritis of both knees
- Osteoarthritis of the right hand
- Osteoarthritis
- Osteoarthritis of the left knee
- Primary Osteoarthritis in Right Knee
- Degenerative joint disease
- Wear-and-tear arthritis
- Arthrosis
- Joint degeneration
- Degenerative Joint Disease
- Wear-and-Tear Arthritis
- Hand Arthritis
- Right Knee Arthritis
- Right Knee Degenerative Joint Disease
ICD-10 Codes:
- M170: Bilateral primary osteoarthritis of knee
- M19041: Primary osteoarthritis, right hand
- M19042: Primary osteoarthritis, left hand
- M1712: Unilateral primary osteoarthritis, left knee
- M1711: Unilateral primary osteoarthritis, right knee
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:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
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:
- Polymyalgia Rheumatica
- Polymyalgia Rheumatica and Giant Cell Arteritis
- PMR
- Inflammatory Rheumatism
ICD-10 Codes:
- M353: Polymyalgia rheumatica
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:
- Neck Spondylosis
- Neck Injuries and Disorder
- Cervical Spondylosis
- Neck Arthritis
- Degenerative Neck Disease
ICD-10 Codes:
- M47812: Spondylosis without myelopathy or radiculopathy, cervical region
Also known as:
- Age-Related Osteoporosis
- Fractures
- Osteoporosis
- Senile Osteoporosis
- Primary Osteoporosis
- Bone Thinning from Aging
ICD-10 Codes:
- M810: Age-related osteoporosis without current pathological fracture
Also known as:
- Inflammatory Arthritis
- Arthritis
- Inflammatory joint disease
- Polyarthritis
- Chronic inflammatory arthritis
ICD-10 Codes:
- M064: Inflammatory polyarthropathy
Also known as:
- Fibromyalgia
- Widespread pain syndrome
- Chronic muscle pain
- Fibromyositis
ICD-10 Codes:
- M797: Fibromyalgia
Also known as:
- Sjogren's Syndrome
- Sjögren syndrome
- Sicca Syndrome
- Autoimmune dry eye disease
ICD-10 Codes:
- M3509: Sjogren syndrome with other organ involvement
Also known as:
- Vitamin B12 Deficiency Anemia
- Anemia
- B Vitamins
- Pernicious Anemia
- B12 Anemia
- Cobalamin Deficiency Anemia
ICD-10 Codes:
- D510: Vitamin B12 deficiency anemia due to intrinsic factor deficiency
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
Also known as:
- Lower Back Disc Degeneration with Pain
- Degenerative Disc Disease
- Lumbar Disc Pain
- Discogenic Back Pain
ICD-10 Codes:
- M51370: Other intervertebral disc degeneration, lumbosacral region with discogenic back pain only
Also known as:
- Gout in multiple joints
- Gout
- Gouty arthritis
- Acute gout
- Uric acid arthritis
- Crystal arthritis
ICD-10 Codes:
- M1009: Idiopathic gout, multiple sites
Which procedures does Dr. Rihacek perform as a Rheumatologist?
As a Rheumatologist, procedures performed by a Dr. Gregory Rihacek may include:
- Abnormal ANA Testing
- Arthrocentesis
- Denosumab Injection
- Joint Aspiration
- Joint Injections
- Rheumatology Consultation
- Rheumatology Follow Up
- Viscosupplement Injections
For detailed information, please contact Dr. Rihacek's office.
Does Dr. Rihacek accept my insurance?
Dr. Rihacek accepts most major insurance plans. Important: Please call our office at 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
All Other Third Party
CVS Health (formerly Aetna)
EmblemHealth
Express Scripts
Horizon BlueCross BlueShield
Humana
Medicare
Mutual of Omaha
Service Employees International Union (SEIU)
UnitedHealthcare
View All Insurances
Where is Dr. Rihacek's office located?
What is Dr. Rihacek's NPI number?An 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. 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. Contact Dr. Rihacek to book an appointment today.
Is this Dr. Gregory Rihacek affiliated with a ranked Castle Connolly Top Hospital?
No, 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
Where can I learn more about Rheumatologist?
Explore Rheumatologist with 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 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 Gregory Rihacek?
Please contact Dr. Rihacek's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Gregory Rihacek have?
Dr. Gregory Rihacek is certified by the American Board of Internal Medicine.
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Connect with DR. Rihacek
19 Clyde Rd Ste 101
Somerset, NJ 08873