32 Years of Experience
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Cassidy, Orthopedic Hand Surgeon in Boston, MA?
Dr. Charles Cassidy, MD is an Orthopedic Hand Surgeon, who primarily practices in Boston, MA. He has been practicing for over 32 years and is board certified. Dr. Cassidy graduated from Northwestern University The Feinberg School of Medicine and completed his residency at New England Med Ctr Hosps, Hand Surgery-Orthopedic Surgery New England Med Ctr Hosps, Orthopedic Surgery. He is a member of the American Academy of Orthopaedic Surgeons, American Society for Surgery of the Hand, Alpha Omega Alpha, Orthopaedic Club, MASSACHUSETTS ORTHOPAEDIC ASSOCIATION, American Orthopaedic Association, New England Hand Society, AO North America Faculty, Eastern Orthopaedic Association, New England Shoulder and Elbow Society, and American Academy of Orthopaedic Surgeons. Dr. Cassidy is fluent in English, and is currently seeing new patients. Dr. Cassidy’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Cassidy’s office at (617) 636-5000.
What are Areas of Expertise for Dr. Cassidy?
Dr. Charles Cassidy, MD is a highly-rated, board-certified Orthopedic Hand Surgeon known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Cassidy empowers patients to confidently navigate their health journey, specializing in Elbow Reconstruction, Elbow Replacement, Elbow Surgery, Hand & Upper Extremity Surgery, and comprehensive wellness support. Serving the Boston, MA community, Dr. Cassidy is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Cassidy go to medical school and complete their residency?
Fellowship: Tufts Combined, Fellow:Hand Surgery
Residency: New England Med Ctr Hosps, Hand Surgery-Orthopedic Surgery New England Med Ctr Hosps, Orthopedic Surgery | Tufts Medical Center | Tufts Medical Center | Tufts Medical Center (New England) Program
Medical School: Northwestern Uniiversity | Northwestern University The Feinberg School of Medicine
Is Dr. Cassidy board certified as an Orthopedic Hand Surgeon?
Yes, Dr. Charles Cassidy, MD is board certified by the American Board of Orthopaedic Surgery
What languages does Dr. Cassidy speak?
Dr. Cassidy and their clinical team can communicate with patients in the following languages:
English
What conditions does an Orthopedic Hand Surgeon like Dr. Cassidy typically treat?
As an Orthopedic Hand Surgeon, Dr. Cassidy 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. Cassidy. 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 here.
Also known as:
- Right Carpal Tunnel Syndrome
- Carpal Tunnel Syndrome
- Left Carpal Tunnel Syndrome
- Right Wrist Nerve Compression
- Right Hand Numbness
- Right CTS
- Median Nerve Compression
- Wrist Nerve Entrapment
- Left Wrist Nerve Compression
- Left Hand Numbness
- Left CTS
ICD-10 Codes:
- G5601: Carpal tunnel syndrome, right upper limb
- G5603: Carpal tunnel syndrome, bilateral upper limbs
- G5602: Carpal tunnel syndrome, left upper limb
Also known as:
- Osteoarthritis of the left thumb joint
- Primary Osteoarthritis in Right Thumb Base
- Osteoarthritis
- Degenerative joint disease
- Wear-and-tear arthritis
- Arthrosis
- Joint degeneration
- Right Thumb Arthritis
- Primary Right First CMC Joint Arthritis
- Right Hand Thumb Base Osteoarthritis
ICD-10 Codes:
- M1812: Unilateral primary osteoarthritis of first carpometacarpal joint, left hand
- M1811: Unilateral primary osteoarthritis of first carpometacarpal joint, right hand
Also known as:
- Right Wrist Pain
- Pain
- Wrist Injuries and Disorder
- Aching right wrist
- Sore right wrist
- Right wrist discomfort
ICD-10 Codes:
- M25531: Pain in right wrist
Also known as:
- Dupuytren's Contracture
- Connective Tissue Disorder
- Finger Injuries and Disorder
- Dupuytren contracture
- Palmar fibromatosis
- Viking disease
- Hand contracture
ICD-10 Codes:
- M720: Palmar fascial fibromatosis [Dupuytren]
What procedures does an Orthopedic Hand Surgeon like Dr. Cassidy typically perform?
As an Orthopedic Hand Surgeon, Dr. Cassidy 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. Cassidy. 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 here.
Also known as:
- Injection for Tendon or Ligament Pain
- Tendon sheath injection
- Ligament injection
- Plantar fascia injection
- Soft tissue injection for pain
CPT Codes:
- 20550: Injection(s); single tendon sheath, or ligament, aponeurosis (eg, plantar "fascia")
Also known as:
- Carpal Tunnel Release Surgery (Endoscopic)
- Trigger Finger Release Surgery
- Endoscopy
- Endoscopic Carpal Tunnel Surgery
- Wrist Endoscopy for Carpal Tunnel
- Transverse Carpal Ligament Release
- Tendon Sheath Incision
- Trigger Finger Tenolysis
- Finger Tendon Release
- Hand Tendon Surgery
CPT Codes:
- 29848: Endoscopy, wrist, surgical, with release of transverse carpal ligament
- 26055: Tendon sheath incision (eg, for trigger finger)
Also known as:
- Small Joint or Bursa Injection/Aspiration
- Joint Tap
- Bursa Fluid Removal
- Small Joint Injection
- Arthrocentesis
CPT Codes:
- 20600: Arthrocentesis, aspiration and/or injection, small joint or bursa (eg, fingers, toes); without ultrasound guidance
Also known as:
- Short Arm Cast Application
- Elbow to Finger Cast
- Forearm Cast
- Arm Immobilization Cast
CPT Codes:
- 29075: Application, cast; elbow to finger (short arm)
Also known as:
- Carpal Tunnel Injection
- Corticosteroid injection for carpal tunnel
- Local anesthetic for carpal tunnel
- Wrist pain injection
- Carpal tunnel syndrome injection
CPT Codes:
- 20526: Injection, therapeutic (eg, local anesthetic, corticosteroid), carpal tunnel
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:
- Ulnar Nerve Release or Repositioning at Elbow
- Ulnar Nerve Transposition
- Cubital Tunnel Release
- Elbow Nerve Surgery
- Neuroplasty Ulnar Nerve
CPT Codes:
- 64718: Neuroplasty and/or transposition; ulnar nerve at elbow
Does Dr. Cassidy accept my insurance?
Dr. Cassidy accepts most major insurance plans. Important: Please call our office at (617) 636-5000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Cassidy accept in Boston, MA?
Dr. Cassidy in Boston, MA 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 Massachusetts
BMC Health System
Cigna Group
CVS Health (formerly Aetna)
Medicare
Point32Health
State of Massachusetts
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Cassidy's office located?
Recognitions
Memberships & Associations
American Academy of Orthopaedic Surgeons
Member
American Society for Surgery of the Hand
Member
Alpha Omega Alpha
Member
Orthopaedic Club
Member
MASSACHUSETTS ORTHOPAEDIC ASSOCIATION
Member
2002
American Orthopaedic Association
Member
2004
New England Hand Society
Member
AO North America Faculty
Member
Eastern Orthopaedic Association
Member
New England Shoulder and Elbow Society
Member
American Academy of Orthopaedic Surgeons
Fellow
Castle Connolly Doctor’s Choice Awards
Doctor’s Choice - All Time
Among the most nominated for the Castle Connolly Top Doctor recognition across all time
Doctor’s Choice - 2025
Among the most nominated for the Castle Connolly Top Doctor recognition in 2025
Doctor’s Choice - Last 5 Years
Among the most nominated for the Castle Connolly Top Doctor recognition in the last 5 years
What is Dr. Cassidy's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Cassidy's National Provider Identifier (NPI) number is 1053351585.
What common questions do patients ask about Dr. Cassidy?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Cassidy
What is Dr. Charles Cassidy's specialty?
Dr. Cassidy is a Orthopedic Hand Surgeon near Boston, MA.
What does an Orthopedic Hand Surgeon do?
An orthopaedic surgeon specializing in the upper extremity focuses on the investigation, preservation, and restoration of all structures affecting the form and function of the hand and wrist. This specialist employs medical, surgical, and rehabilitative techniques to treat various conditions and injuries related to the upper extremity.
Is this Dr. Charles Cassidy affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Cassidy is affiliated with Tufts Medical Center 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
When to see an Orthopedic Hand Surgeon?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Orthopedic Hand Surgeon. 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 Charles Cassidy accepting new patients in Boston, MA?
Yes, Dr. Charles Cassidy is accepting new patients at this time.
Does Dr. Charles Cassidy offer online booking?
Please contact Dr. Cassidy's office at (617) 636-5000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Charles Cassidy?
Please contact Dr. Cassidy's office at (617) 636-5000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Charles Cassidy have?
Dr. Charles Cassidy is certified by the American Board of Orthopaedic Surgery.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>