WG
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Grehan, Anesthesiologist in Hilton Head, SC?
Dr. William Grehan, MD is an Anesthesiologist, who primarily practices in Hilton Head, SC with 2 additional practice locations. He is board certified. Dr. Grehan graduated from Georgetown University School of Medicine and completed his residency at University of Illinois College of Medicine at Chicago Program. Dr. Grehan is fluent in English, and is currently seeing new patients. Dr. Grehan’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Grehan’s office at (708) 681-3202.
Where did Dr. Grehan go to medical school and complete their residency?
Residency: University of Illinois College of Medicine at Chicago Program
Medical School: Georgetown University School of Medicine
What languages does Dr. Grehan speak?
Dr. Grehan and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Grehan treat?
As a Anesthesiologist, Dr. Grehan 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. Grehan. 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:
- Acute pain after medical procedure
- Pain
- Acute post-operative pain
- Pain after surgery
- Post-procedural pain
ICD-10 Codes:
- G8918: Other acute postprocedural pain
Also known as:
- Primary Osteoarthritis in Right Knee
- Osteoarthritis of the left knee
- Primary Osteoarthritis in Right Hip
- Osteoarthritis of the left hip
- Osteoarthritis of the knee
- Osteoarthritis of the left shoulder
- Osteoarthritis
- Right Knee Arthritis
- Right Knee Degenerative Joint Disease
- Degenerative joint disease
- Wear-and-tear arthritis
- Arthrosis
- Joint degeneration
- Right Hip Arthritis
- Right Hip Degenerative Joint Disease
ICD-10 Codes:
- M1711: Unilateral primary osteoarthritis, right knee
- M1712: Unilateral primary osteoarthritis, left knee
- M1611: Unilateral primary osteoarthritis, right hip
- M1612: Unilateral primary osteoarthritis, left hip
- M179: Osteoarthritis of knee, unspecified
- M19012: Primary osteoarthritis, left shoulder
Also known as:
- Cataract
- Cloudy Lens
- Lens Opacity
- Eye Clouding
- Cloudy lens
- Lens clouding
- Eye cloudiness
ICD-10 Codes:
- H269: Unspecified cataract
- H2511: Age-related nuclear cataract, right eye
- H2512: Age-related nuclear cataract, left eye
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Type 2 Diabetes with Diabetic Cataract
- Cataract
- Diabetes Type 2
- Type 2 diabetes
- Diabetes-related cataract
- Cloudy lens from diabetes
- Diabetic eye cataract
ICD-10 Codes:
- E1136: Type 2 diabetes mellitus with diabetic cataract
Also known as:
- Lower Back Spinal Stenosis with Nerve Pain in Legs
- Spinal Stenosis
- Lumbar Spinal Stenosis with Claudication
- Narrowing of Lower Back Spinal Canal with Leg Pain
- Nerve Compression in Lower Back with Walking Pain
ICD-10 Codes:
- M48062: Spinal stenosis, lumbar region with neurogenic claudication
Also known as:
- Acute Appendicitis
- Appendicitis
- Inflamed Appendix
- Sudden Appendix Inflammation
- Appendicitis Attack
ICD-10 Codes:
- K3580: Unspecified acute appendicitis
Also known as:
- Right Carpal Tunnel Syndrome
- Carpal Tunnel Syndrome
- Right Wrist Nerve Compression
- Right Hand Numbness
- Right CTS
ICD-10 Codes:
- G5601: Carpal tunnel syndrome, right upper limb
What procedures does Dr. Grehan perform?
As a Anesthesiologist, Dr. Grehan performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Grehan. 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:
- Femoral Nerve Block Injection
- Peripheral Nerve Block
- Femoral nerve injection
- Thigh nerve block
- Pain relief injection for thigh
- Nerve block with imaging guidance
- Nerve injection
- Pain relief injection
- Steroid injection for nerve pain
CPT Codes:
- 64447: Injection(s), anesthetic agent(s) and/or steroid; femoral nerve, including imaging guidance, when performed
- 64450: Injection(s), anesthetic agent(s) and/or steroid; other peripheral nerve or branch
Also known as:
- Brachial Plexus Nerve Block
- Shoulder Nerve Injection
- Arm Pain Injection
- Imaging-Guided Nerve Block
CPT Codes:
- 64415: Injection(s), anesthetic agent(s) and/or steroid; brachial plexus, including imaging guidance, when performed
Also known as:
- Knee Nerve Pain Injection
- Sciatic Nerve Pain Injection
- Genicular Nerve Block
- Knee Pain Steroid Injection
- Knee Nerve Anesthetic Injection
- Sciatic Nerve Block
- Sciatica Injection
- Steroid Injection for Sciatica
- Pain Relief for Sciatic Nerve
CPT Codes:
- 64454: Injection(s), anesthetic agent(s) and/or steroid; genicular nerve branches, including imaging guidance, when performed
- 64445: Injection(s), anesthetic agent(s) and/or steroid; sciatic nerve, including imaging guidance, when performed
Does Dr. Grehan accept my insurance?
Dr. Grehan accepts most major insurance plans. Important: Please call our office at (708) 681-3202 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Grehan accept in Hilton Head, SC?
Dr. Grehan in Hilton Head, SC accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Cross Blue Shield of Michigan
BlueCross BlueShield of South Carolina
Carpenters Funds Administrative Office (CA)
Centene
Department of Defense / Tricare
Health Care Service Corporation (HCSC)
Humana
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Grehan's office located?
Dr. William Grehan's Primary Practice
25 Hospital Center Blvd
Hilton Head, SC 29926
(708) 681-3202
What is Dr. Grehan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Grehan's National Provider Identifier (NPI) number is 1417961061.
What common questions do patients ask about Dr. Grehan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Grehan
What is Dr. William Grehan's specialty?
Dr. Grehan is a Anesthesiologist near Hilton Head, SC. A physician specialist in pain management and maintaining or restoring a stable state during and right after surgical, obstetric, or diagnostic operations is known as an anesthesiologist. This specialist assesses each patient's risk of surgery and tries to improve their condition before to, during, and following the procedure. Anesthesiologists provide medical management, pain management, and critical care consults in addition to these vital management responsibilities. They are responsible for managing patients with severe illnesses or injuries, supervising the recovery period following anesthesia, directing resuscitation efforts for patients experiencing cardiac or respiratory emergencies that may require artificial ventilation, and diagnosing and treating both acute and chronic pain, including pain related to cancer. Contact Dr. Grehan to book an appointment today.
Is this Dr. William Grehan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Grehan is affiliated with Coastal Carolina Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They 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 Anesthesiologist?
Explore Anesthesiologist 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 William Grehan accepting new patients in Hilton Head, SC?
Yes, Dr. William Grehan is accepting new patients at this time.
Does Dr. William Grehan offer online booking?
Please contact Dr. Grehan's office at (708) 681-3202 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Grehan?
Please contact Dr. Grehan's office at (708) 681-3202 for information regarding telehealth appointment availability or for scheduling assistance.
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