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Dr. Erin Farrelly, MD

San Marcos, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Farrelly, Orthopedic Surgeon in San Marcos, CA?

    Dr. Erin Farrelly, MD is an Orthopedic Surgeon, who primarily practices in San Marcos, CA with 2 additional practice locations. Dr. Farrelly is fluent in English, and is currently seeing new patients. Dr. Farrelly’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Farrelly’s office.

    What languages does Dr. Farrelly speak?

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

    • English

    What conditions does an Orthopedic Surgeon like Dr. Farrelly typically treat?

    As an Orthopedic Surgeon, Dr. Farrelly 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. Farrelly. 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:

    • Pain in Left Knee
    • Pain in Right Knee
    • Pain in Left Ankle and Foot
    • Knee Injuries and Disorder
    • Pain
    • Ankle Injuries and Disorder
    • Foot Injuries and Disorder
    • Left Knee Ache
    • Left Knee Discomfort
    • Sore Left Knee
    • Right Knee Ache
    • Right Knee Discomfort
    • Sore Right Knee
    • Left Ankle Ache
    • Left Foot Discomfort
    • Sore Left Ankle and Foot

    ICD-10 Codes:

    • M25562: Pain in left knee
    • M25561: Pain in right knee
    • M25572: Pain in left ankle and joints of left foot

    Also known as:

    • Left Hip Pain
    • Right Hip Pain
    • Hip Injuries and Disorder
    • Pain
    • Sore Left Hip
    • Left Hip Ache
    • Left Hip Discomfort
    • Sore Right Hip
    • Right Hip Ache
    • Right Hip Discomfort

    ICD-10 Codes:

    • M25552: Pain in left hip
    • M25551: Pain in right hip

    Also known as:

    • Right Ankle and Foot Pain
    • Ankle Injuries and Disorder
    • Foot Injuries and Disorder
    • Pain
    • Sore Right Ankle
    • Sore Right Foot
    • Aching Right Ankle and Foot

    ICD-10 Codes:

    • M25571: Pain in right ankle and joints of right foot

    Also known as:

    • Right Leg Pain
    • Leg Injuries and Disorder
    • Pain
    • Pain in right lower limb
    • Right leg discomfort
    • Aching right leg

    ICD-10 Codes:

    • M79604: Pain in right leg

    What procedures does an Orthopedic Surgeon like Dr. Farrelly typically perform?

    As an Orthopedic Surgeon, Dr. Farrelly 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. Farrelly. 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:

    • Hip Fracture Repair with Internal Fixation or Replacement
    • Upper Thigh Bone Fracture Repair with Rod
    • Femoral Neck Fracture Repair
    • Proximal Femur Fracture Treatment
    • Hip Pinning Surgery
    • Hip Fracture Prosthetic Replacement
    • Femoral Fracture Intramedullary Nailing
    • Hip Fracture Rod Fixation
    • Intertrochanteric Fracture Repair

    CPT Codes:

    • 27236: Open treatment of femoral fracture, proximal end, neck, internal fixation or prosthetic replacement
    • 27245: Treatment of intertrochanteric, peritrochanteric, or subtrochanteric femoral fracture; with intramedullary implant, with or without interlocking screws and/or cerclage

    Also known as:

    • Removal of Deep Surgical Implant
    • Hardware Removal Surgery
    • Buried Implant Extraction
    • Orthopedic Implant Removal

    CPT Codes:

    • 20680: Removal of implant; deep (eg, buried wire, pin, screw, metal band, nail, rod or plate)

    Also known as:

    • Open Repair of Tibial Plateau Fracture
    • Tibia Fracture Surgery
    • Knee Fracture Repair
    • Tibial Plateau Fixation
    • Broken Shin Bone Surgery

    CPT Codes:

    • 27535: Open treatment of tibial fracture, proximal (plateau); unicondylar, includes internal fixation, when performed

    Also known as:

    • Removal of External Fixator
    • Anesthesia
    • External Fixation Device Removal
    • Bone Fixator Removal
    • Hardware Removal Surgery
    • External Frame Removal

    CPT Codes:

    • 20694: Removal, under anesthesia, of external fixation system

    Also known as:

    • External Fixation System Placement (Uniplane)
    • Uniplane External Fixator
    • Bone External Fixation
    • External Frame for Bone Healing

    CPT Codes:

    • 20690: Application of a uniplane (pins or wires in 1 plane), unilateral, external fixation system

    Also known as:

    • Open Treatment for Ankle Joint Disruption
    • Syndesmosis Repair
    • Distal Tibiofibular Joint Fixation
    • Ankle Ligament Repair Surgery

    CPT Codes:

    • 27829: Open treatment of distal tibiofibular joint (syndesmosis) disruption, includes internal fixation, when performed

    Also known as:

    • Deep Wound Cleaning for Open Fracture
    • Excisional Debridement (Bone)
    • Open Fracture Debridement
    • Foreign Material Removal (Fracture)
    • Deep Tissue Wound Cleaning

    CPT Codes:

    • 11012: Debridement including removal of foreign material at the site of an open fracture and/or an open dislocation (eg, excisional debridement); skin, subcutaneous tissue, muscle fascia, muscle, and bone

    Also known as:

    • Bone Debridement (Cleaning of Bone Wound)
    • Bone Wound Cleaning
    • Surgical Bone Debridement
    • Dead Bone Removal
    • Wound Cleaning with Bone Involvement

    CPT Codes:

    • 11044: Debridement, bone (includes epidermis, dermis, subcutaneous tissue, muscle and/or fascia, if performed); first 20 sq cm or less

    Does Dr. Farrelly accept my insurance?

    Dr. Farrelly 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. Farrelly accept in San Marcos, CA?

    Dr. Farrelly in San Marcos, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • BCBS Unspecified

    • CareFirst BlueCross BlueShield

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Medicare

    • State of Maryland

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Farrelly's office located?

    Dr. Erin Farrelly's Primary Practice

    277 Rancheros Dr Ste 101

    San Marcos, CA 92069

    Get Directions

    Dr. Erin Farrelly's Practice 2

    22 Corporate Plaza Dr

    Newport Beach, CA 92660

    Get Directions

    Dr. Erin Farrelly's Practice 3

    16300 Sand Canyon Ave Ste 400

    Irvine, CA 92618

    Get Directions

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

    Dr. Farrelly's National Provider Identifier (NPI) number is 1922354422.

    What common questions do patients ask about Dr. Farrelly?

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

    What is Dr. Erin Farrelly's specialty?

    Dr. Farrelly is a Orthopedic Surgeon near San Marcos, CA.

    What does an Orthopedic Surgeon do?

    An orthopedic surgeon has specialization in preserving, investigating, and restoring the form and function of the extremities, spine, and related structures through medical, surgical, and physical methods. They care for patients with musculoskeletal issues, including congenital deformities, trauma, infections, tumors, metabolic disturbances, and degenerative diseases affecting the spine, hands, feet, knees, hips, shoulders, and elbows in both children and adults. Additionally, orthopedic surgeons address primary and secondary muscular problems and the impact of central or peripheral nervous system lesions on the musculoskeletal system.

    Is this Dr. Erin Farrelly affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Farrelly is affiliated with Medstar Union Memorial Hospital, Medstar Washington Hospital Center, Medstar Franklin Square Medical Center, Medstar Harbor Hospital, Greater Baltimore Medical Center, Hoag Hospital Newport Beach which are a Castle Connolly Top Hospitals. 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 Surgeon?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Orthopedic 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 Erin Farrelly accepting new patients in San Marcos, CA?

    Yes, Dr. Erin Farrelly is accepting new patients at this time.

    Does Dr. Erin Farrelly offer online booking?

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

    How can I make an appointment with Erin Farrelly?

    Please contact Dr. Farrelly's office for information regarding telehealth appointment availability or for scheduling assistance.

    <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>