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Dr. John O Neill, MD

Dr. John O Neill, MD

Dermatologist

Bethesda, MD

37 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. O Neill, Dermatologist in Bethesda, MD?

    Dr. John O Neill, MD is a Dermatologist, who primarily practices in Bethesda, MD. He has been practicing for over 37 years. Dr. O Neill graduated from Georgetown University School of Medicine and completed his residency at Naval Medical Center (Portsmouth) Program. Dr. O Neill is fluent in English, and is currently seeing new patients. Dr. O Neill’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. O Neill’s office at (301) 530-4800.
    CastleConnolyTopDoctors

    Castle Connolly Top Doctor

    Castle Connolly Top Doctors are doctor-nominated and selected by a physician-led research team.

    What are Areas of Expertise for Dr. O Neill?

    Dr. John O Neill, MD is a highly-rated, board-certified Dermatologist 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. O Neill empowers patients to confidently navigate their health journey, specializing in Dermatologic Surgery, Fillers & Injectables, Hair & Nail Disorders, Laser Surgery, Pediatric Dermatology, and comprehensive wellness support. Serving the Bethesda, MD community, Dr. O Neill is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Naval Medical Center (Portsmouth) Program

    • Medical School: Georgetown University School of Medicine

    What languages does Dr. O Neill speak?

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

    • English

    What conditions does a Dermatologist like Dr. O Neill typically treat?

    As a Dermatologist, Dr. O Neill 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. O Neill. 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:

    • Actinic Keratosis
    • Skin Condition
    • Sun Exposure
    • Skin Cancer Treatment (PDQ®)
    • Solar keratosis
    • Precancerous skin lesion
    • Rough sun spots

    ICD-10 Codes:

    • L570: Actinic keratosis

    Also known as:

    • Benign Trunk Skin Tumor
    • Benign Tumor
    • Non-cancerous growth on trunk skin
    • Trunk skin lesion
    • Benign trunk skin mass
    • Lump on body skin

    ICD-10 Codes:

    • D235: Other benign neoplasm of skin of trunk

    Also known as:

    • Inflamed Seborrheic Keratosis
    • Benign Tumor
    • Skin Condition
    • Irritated seborrheic keratosis
    • Red skin growth
    • Inflamed age spot

    ICD-10 Codes:

    • L820: Inflamed seborrheic keratosis

    Also known as:

    • Acne Vulgaris
    • Acne
    • Common acne
    • Pimples
    • Breakouts

    ICD-10 Codes:

    • L700: Acne vulgaris

    Also known as:

    • Skin Tumor of Uncertain Behavior
    • Skin Condition
    • Skin Neoplasm
    • Skin Growth
    • Uncertain Skin Lesion

    ICD-10 Codes:

    • D485: Neoplasm of uncertain behavior of skin

    What procedures does a Dermatologist like Dr. O Neill typically perform?

    As a Dermatologist, Dr. O Neill 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. O Neill. 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:

    • Removal of Precancerous Skin Lesions
    • Removal of Benign Skin Lesions
    • Shaving Skin Lesion
    • Skin Lesion Shave Removal (Medium)
    • Skin Conditions
    • Actinic Keratosis Treatment
    • Premalignant Lesion Destruction
    • Skin Cancer Prevention Treatment
    • Cryosurgery for Skin Lesions
    • Benign Skin Growth Destruction
    • Skin Lesion Excision
    • Electrosurgery for Skin Lesions
    • Skin Lesion Shave Excision
    • Mole Shaving
    • Skin Growth Removal (Shave)
    • Dermal Lesion Shave
    • Shave Excision of Skin Lesion
    • Dermal Lesion Shaving

    CPT Codes:

    • 17000: Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), premalignant lesions (eg, actinic keratoses); first lesion
    • 17110: Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), of benign lesions other than skin tags or cutaneous vascular proliferative lesions; up to 14 lesions
    • 17003: Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), premalignant lesions (eg, actinic keratoses); second through 14 lesions, each (List separately in addition to code for first lesion)
    • 11301: Shaving of epidermal or dermal lesion, single lesion, trunk, arms or legs; lesion diameter 0.6 to 1.0 cm
    • 11302: Shaving of epidermal or dermal lesion, single lesion, trunk, arms or legs; lesion diameter 1.1 to 2.0 cm

    Also known as:

    • Injection for Skin Lesions (Up to 7)
    • Intralesional Injection
    • Lesion Injection Therapy
    • Steroid Injection for Skin Bumps

    CPT Codes:

    • 11900: Injection, intralesional; up to and including 7 lesions

    Also known as:

    • Skin Biopsy
    • Shave Biopsy
    • Tangential Biopsy
    • Skin Lesion Biopsy

    CPT Codes:

    • 11102: Tangential biopsy of skin (eg, shave, scoop, saucerize, curette); single lesion

    Also known as:

    • Complex Wound Repair (Face, Neck, Hands, Feet)
    • Extensive Facial Laceration Repair
    • Deep Wound Closure (Sensitive Areas)
    • Complex Repair of Hand/Foot Wound

    CPT Codes:

    • 13132: Repair, complex, forehead, cheeks, chin, mouth, neck, axillae, genitalia, hands and/or feet; 2.6 cm to 7.5 cm

    Also known as:

    • Multiple Skin Lesion Injections
    • Intralesional Injections (Multiple)
    • Injections for Skin Growths
    • Steroid Injections for Skin

    CPT Codes:

    • 11901: Injection, intralesional; more than 7 lesions

    Does Dr. O Neill accept my insurance?

    Dr. O Neill accepts most major insurance plans. Important: Please call our office at (301) 530-4800 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. O Neill accept in Bethesda, MD?

    Dr. O Neill in Bethesda, MD accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Aetna

    • Blue Cross Blue Shield

    • Blue Cross Blue Shield of Illinois

    • Blue Cross Blue Shield of Michigan

    • CareFirst BlueCross BlueShield

    • CDPHP

    • Elevance Health Inc. (formerly Anthem)

    • Johns Hopkins Health System

    • Medicare

    • MedStar Health

    View All Insurances

    Where is Dr. O Neill's office located?

    Dr. John O Neill's Primary Practice

    6410 Rockledge Dr Ste 402

    Bethesda, MD 20817

    (301) 530-4800

    Get Directions

    What hospitals are Dr. O Neill affiliated with?

    CastleConnolyTopDoctors

    Castle Connolly Top Hospital

    This doctor is affiliated with a Castle Connolly Top Hospital.

    Dr. O Neill has admitting privileges at the following hospitals:

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

    Dr. O Neill's National Provider Identifier (NPI) number is 1184635575.

    What common questions do patients ask about Dr. O Neill?

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

    What is Dr. John O Neill's specialty?

    Dr. O Neill is a Dermatologist near Bethesda, MD.

    What does a Dermatologist do?

    Dermatologists are medical professionals trained to diagnose and treat a wide range of skin conditions in both children and adults, including skin cancers, melanomas, and other tumors. They also manage disorders of the mouth, external genitalia, hair, and nails, and are skilled in treating conditions like dermatitis, allergic reactions, and skin manifestations of systemic diseases. Dermatologists receive specialized training in dermatopathology and dermatologic surgical techniques, and address cosmetic issues such as hair loss and scarring. Additionally, they use laboratory methods to diagnose immune-related skin disorders, often collaborating with immunohematologists for expert consultation and targeted therapies.

    Is Dr. John O Neill affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. O Neill is affiliated with Suburban 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

    When to see a Dermatologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Dermatologist. 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. John O Neill accepting new patients in Bethesda, MD?

    Yes, Dr. John O Neill is accepting new patients at this time.

    Does Dr. John O Neill offer online booking?

    Please contact Dr. O Neill's office at (301) 530-4800 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. John O Neill?

    Please contact Dr. O Neill's office at (301) 530-4800 to schedule an appointment.

    Where is Dr. O Neill's office located?

    Dr. O Neill's office is located in Bethesda, MD.