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Dr. Michael Duffin, MD

Dr. Michael Duffin, MD

Torrance, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Duffin, Rheumatologist in Torrance, CA?

    Dr. Michael Duffin, MD is a Rheumatologist, who primarily practices in Torrance, CA. He is board certified. Dr. Duffin graduated from Ponce Med School and completed his residency at L A Co-Usc Med Ctr, Rheumatology; Loma Linda Univ Med Ctr, Internal Medicine; Wilson Mem Reg Med Ctr, Internal Medicine. Dr. Duffin is fluent in English and Spanish, and is currently seeing new patients. Dr. Duffin’s practice accepts Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Duffin’s office at (541) 274-2750.

    Where did Dr. Duffin go to medical school and complete their residency?

    • Fellowship: LAC-USC Medical Center

    • Residency: L A Co-Usc Med Ctr, Rheumatology; Loma Linda Univ Med Ctr, Internal Medicine; Wilson Mem Reg Med Ctr, Internal Medicine | Loma Linda University Medical Center | PCOM/Wilson Memorial Reg Med Ctr Program

    • Medical School: Ponce Sch of Med, Ponce Pr | Ponce Med School | Ponce School of Medicine and Health Sciences

    Is Dr. Duffin board certified as a Rheumatologist?

    Yes, Dr. Michael Duffin, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Duffin speak?

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

    • English

    • Spanish

    What conditions does a Rheumatologist like Dr. Duffin typically treat?

    As a Rheumatologist, Dr. Duffin 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. Duffin. 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:

    • Rheumatoid Arthritis
    • RA
    • Chronic inflammatory arthritis
    • Autoimmune arthritis
    • Inflammatory joint disease

    ICD-10 Codes:

    • M0579: Rheumatoid arthritis with rheumatoid factor of multiple sites without organ or systems involvement
    • M0609: Rheumatoid arthritis without rheumatoid factor, multiple sites

    Also known as:

    • Psoriatic Arthritis
    • Psoriasis
    • Psoriatic joint inflammation
    • Arthritis with psoriasis
    • Psoriasis-related joint pain

    ICD-10 Codes:

    • L4050: Arthropathic psoriasis, unspecified

    Also known as:

    • Other Abnormal Immune System Markers
    • Unusual immune findings
    • Abnormal immunology results
    • Abnormal serum immunology

    ICD-10 Codes:

    • R768: Other specified abnormal immunological findings in serum

    Also known as:

    • Lupus
    • Systemic lupus erythematosus
    • SLE
    • Disseminated lupus erythematosus

    ICD-10 Codes:

    • M329: Systemic lupus erythematosus, unspecified

    Also known as:

    • Widespread Osteoarthritis
    • Osteoarthritis
    • Generalized Osteoarthritis
    • Multiple Joint Arthritis
    • Polyarthritis

    ICD-10 Codes:

    • M159: Polyosteoarthritis, unspecified

    Also known as:

    • Fibromyalgia
    • Widespread pain syndrome
    • Chronic muscle pain
    • Fibromyositis

    ICD-10 Codes:

    • M797: Fibromyalgia

    Also known as:

    • Polymyalgia Rheumatica
    • Polymyalgia Rheumatica and Giant Cell Arteritis
    • PMR
    • Inflammatory Rheumatism

    ICD-10 Codes:

    • M353: Polymyalgia rheumatica

    What procedures does a Rheumatologist like Dr. Duffin typically perform?

    As a Rheumatologist, Dr. Duffin 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. Duffin. 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:

    • Major Joint Injection or Fluid Removal with Ultrasound
    • Joint or Bursa Injection/Fluid Removal
    • Ultrasound-Guided Joint or Bursa Injection/Aspiration
    • Ultrasound-Guided Arthrocentesis
    • Shoulder Injection with Ultrasound
    • Hip Aspiration with Ultrasound
    • Knee Injection with Ultrasound
    • Arthrocentesis
    • Major Joint Aspiration
    • Bursa Injection
    • Joint Fluid Removal
    • Intermediate Joint Aspiration with Ultrasound
    • Bursa Injection with Ultrasound

    CPT Codes:

    • 20611: Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); with ultrasound guidance, with permanent recording and reporting
    • 20610: Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); without ultrasound guidance
    • 20606: Arthrocentesis, aspiration and/or injection, intermediate joint or bursa (eg, temporomandibular, acromioclavicular, wrist, elbow or ankle, olecranon bursa); with ultrasound guidance, with permanent recording and reporting

    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

    Does Dr. Duffin accept my insurance?

    Dr. Duffin accepts most major insurance plans. Important: Please call our office at (541) 274-2750 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Duffin accept in Torrance, CA?

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

    Top Insurances

    • All Other Third Party

    • Cambia Health Solutions

    • Cascade Comprehensive Care

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Federal government of the United States

    • Medicaid

    • Medicare

    • State of Oregon

    • Unknown

    View All Insurances

    Where is Dr. Duffin's office located?

    Dr. Michael Duffin's Primary Practice

    3565 Del Amo Blvd

    Torrance, CA 90503

    (541) 274-2750

    Get Directions

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

    Dr. Duffin's National Provider Identifier (NPI) number is 1578587309.

    What common questions do patients ask about Dr. Duffin?

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

    What is Dr. Michael Duffin's specialty?

    Dr. Duffin is a Rheumatologist near Torrance, CA.

    What does a Rheumatologist do?

    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.

    Is this Dr. Michael Duffin affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Duffin is affiliated with Sky Lakes 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 a Rheumatologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Rheumatologist. 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 Michael Duffin accepting new patients in Torrance, CA?

    Yes, Dr. Michael Duffin is accepting new patients at this time.

    Does Dr. Michael Duffin offer online booking?

    Please contact Dr. Duffin's office at (541) 274-2750 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Michael Duffin?

    Please contact Dr. Duffin's office at (541) 274-2750 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Michael Duffin have?

    Dr. Michael Duffin is certified by the American Board of Internal Medicine.

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