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Dr. Charles Cassidy, MD

Dr. Charles Cassidy, MD

Orthopedic Hand Surgeon, Orthopedic Surgeon

Boston, MA

32 Years of Experience

Accepting patients

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.
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    Castle Connolly Top Doctor

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    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.

    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.

    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:

    • Joint or Bursa Injection/Aspiration
    • Arthrocentesis
    • Joint Fluid Removal
    • Bursa Injection

    CPT Codes:

    • 20605: Arthrocentesis, aspiration and/or injection, intermediate joint or bursa (eg, temporomandibular, acromioclavicular, wrist, elbow or ankle, olecranon bursa); without ultrasound guidance

    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

    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

    • Blue Cross Blue Shield of Massachusetts

    • BMC Health System

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Mass General Brigham

    • Medicare

    • Point32Health

    • State of Massachusetts

    • The Health Plan of West Virginia

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Cassidy's office located?

    Dr. Charles Cassidy's Primary Practice

    800 Washington St

    Boston, MA 02111

    (617) 636-5000

    Get Directions

    Recognitions

    Memberships & Associations

    • Member of American Academy of Orthopaedic Surgeons

    • Member of American Society for Surgery of the Hand

    • Member of Alpha Omega Alpha

    • Member of Orthopaedic Club

    • Member of MASSACHUSETTS ORTHOPAEDIC ASSOCIATION, 2002

    • Member of American Orthopaedic Association, 2004

    • Member of New England Hand Society

    • Member of AO North America Faculty

    • Member of Eastern Orthopaedic Association

    • Member of New England Shoulder and Elbow Society

    • Fellow of American Academy of Orthopaedic Surgeons

    Castle Connolly Doctor’s Choice Awards

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    Doctor’s Choice - All Time

    Among the most nominated for the Castle Connolly Top Doctor recognition across all time

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    Doctor’s Choice - 2025

    Among the most nominated for the Castle Connolly Top Doctor recognition in 2025

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    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?A 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 an 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 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 Dr. 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 Dr. Charles Cassidy?

    Please contact Dr. Cassidy's office at (617) 636-5000 to schedule an appointment.

    Where is Dr. Cassidy's office located?

    Dr. Cassidy's office is located in Boston, MA.

    Which board certifications does Dr. Charles Cassidy have?

    Dr. Charles Cassidy is certified by the American Board of Orthopaedic Surgery.