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Dr. Mark Willoughby, MD

Chula Vista, CA

22 Years of Experience

Accepting patients

    Who is Dr. Willoughby, Dermatologist in Chula Vista, CA?

    Dr. Mark Willoughby, MD is a Dermatologist, who primarily practices in Chula Vista, CA with 1 additional practice location. He has been practicing for over 22 years and is board certified. Dr. Willoughby graduated from Ohio State University / College of Medicine and completed his residency at Cook County Hosp, Dermatology; Kaiser Permanente Med Grp, Internal Medicine. Dr. Willoughby is fluent in English and Spanish, and is currently seeing new patients. Dr. Willoughby’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Willoughby’s office at (619) 320-4898.

    What are Areas of Expertise for Dr. Willoughby?

    Dr. Mark Willoughby, MD is a highly-rated, board-certified Dermatologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Willoughby empowers patients to confidently navigate their health journey, specializing in Acne, Cosmetic Dermatology, Dermatologic Surgery, Skin Cancer, or comprehensive wellness support. Serving the Chula Vista/CA community, Dr. Willoughby is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Cook County Hosp, Dermatology; Kaiser Permanente Med Grp, Internal Medicine | Cook County Hospital Program

    • Medical School: Oh State Univ Coll of Med, Columbus Oh | Ohio State University / College of Medicine

    Is Dr. Willoughby board certified as a Dermatologist?

    Yes, Dr. Mark Willoughby, MD is board certified by the American Board of Dermatology

    What languages does Dr. Willoughby speak?

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

    • English

    • Spanish

    What conditions does Dr. Willoughby treat?

    As a Dermatologist, Dr. Willoughby 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. Willoughby. 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.

    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

    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:

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

    ICD-10 Codes:

    • L700: Acne vulgaris

    Also known as:

    • Chronic Radiation Skin Damage
    • Chronic Radiation Skin Changes
    • Skin Condition
    • Long-term radiation skin effects
    • Non-ionizing radiation skin problems
    • Long-term radiation dermatitis
    • Skin damage from radiation
    • Non-ionizing radiation skin effects

    ICD-10 Codes:

    • L579: Skin changes due to chronic exposure to nonionizing radiation, unspecified
    • L578: Other skin changes due to chronic exposure to nonionizing radiation

    Also known as:

    • Seborrheic Keratosis
    • Benign Tumor
    • Skin Condition
    • SK
    • Senile Wart
    • Barnacle of Life

    ICD-10 Codes:

    • L821: Other seborrheic keratosis

    Also known as:

    • Sebaceous Cyst
    • Skin Condition
    • Epidermoid Cyst
    • Keratin Cyst
    • Skin Lump

    ICD-10 Codes:

    • L723: Sebaceous cyst

    Also known as:

    • Wart
    • Warts
    • Skin growth
    • Common wart
    • Verruca

    ICD-10 Codes:

    • B079: Viral wart, unspecified

    Also known as:

    • Itching
    • Pruritus
    • Skin Itch
    • Generalized Itching

    ICD-10 Codes:

    • L299: Pruritus, unspecified

    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

    What procedures does Dr. Willoughby perform?

    As a Dermatologist, Dr. Willoughby 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. Willoughby. 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.

    Also known as:

    • Removal of Benign Skin Lesions
    • Removal of Precancerous Skin Lesions
    • Removal of Malignant Skin Lesion (Trunk/Limbs)
    • Removal of Precancerous Skin Spots
    • Removal of Multiple Benign Skin Lesions
    • Malignant Skin Lesion Removal (Scalp, Neck, Hands, Feet, Genitalia - Medium)
    • Skin Conditions
    • Benign Skin Growth Destruction
    • Skin Lesion Excision
    • Cryosurgery for Skin Lesions
    • Electrosurgery for Skin Lesions
    • Actinic Keratosis Treatment
    • Premalignant Lesion Destruction
    • Skin Cancer Prevention Treatment
    • Skin Cancer Removal
    • Malignant Lesion Destruction
    • Skin Tumor Excision
    • Cryosurgery for Skin Lesion
    • Destruction of Actinic Keratoses
    • Precancerous Lesion Treatment
    • Skin Growth Destruction
    • Benign Lesion Excision
    • Electrosurgery for Skin Growths
    • Malignant Growth Destruction
    • Laser Removal of Skin Lesion

    CPT Codes:

    • 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
    • 17000: Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), premalignant lesions (eg, actinic keratoses); first lesion
    • 17262: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), trunk, arms or legs; lesion diameter 1.1 to 2.0 cm
    • 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)
    • 17004: Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), premalignant lesions (eg, actinic keratoses), 15 or more lesions
    • 17111: Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), of benign lesions other than skin tags or cutaneous vascular proliferative lesions; 15 or more lesions
    • 17272: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), scalp, neck, hands, feet, genitalia; lesion diameter 1.1 to 2.0 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

    Also known as:

    • Photodynamic Therapy for Skin Lesions
    • Skin Cancer Destruction (Body/Limbs)
    • Skin Cancer Destruction (Body)
    • Removal of Skin Cancer on Face/Ears
    • PDT for precancerous skin
    • Light therapy for skin lesions
    • Precancerous skin treatment with light
    • Actinic keratosis treatment
    • Malignant Lesion Destruction
    • Skin Tumor Removal without Cutting
    • Cryosurgery for Skin Cancer
    • Electrosurgery for Skin Lesion
    • Malignant Lesion Removal (Trunk/Limbs)
    • Laser Removal of Skin Cancer
    • Electrosurgery for Malignant Lesion
    • Skin Cancer Removal (Face)
    • Facial Skin Cancer Treatment

    CPT Codes:

    • 96574: Debridement of premalignant hyperkeratotic lesion(s) (ie, targeted curettage, abrasion) followed with photodynamic therapy by external application of light to destroy premalignant lesions of the skin and adjacent mucosa with application and illumination/activation of photosensitizing drug(s) provided by a physician or other qualified health care professional, per day
    • 17263: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), trunk, arms or legs; lesion diameter 2.1 to 3.0 cm
    • 17261: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), trunk, arms or legs; lesion diameter 0.6 to 1.0 cm
    • 17281: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), face, ears, eyelids, nose, lips, mucous membrane; lesion diameter 0.6 to 1.0 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:

    • Malignant Skin Lesion Removal (Face/Ears)
    • Skin Cancer Removal (Trunk, Arms, Legs)
    • Skin Cancer Destruction
    • Facial Skin Cancer Treatment
    • Malignant Lesion Excision
    • Cryosurgery for Skin Cancer
    • Skin Tumor Removal
    • Cancerous Mole Removal

    CPT Codes:

    • 17282: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), face, ears, eyelids, nose, lips, mucous membrane; lesion diameter 1.1 to 2.0 cm
    • 11603: Excision, malignant lesion including margins, trunk, arms, or legs; excised diameter 2.1 to 3.0 cm

    Also known as:

    • Complex Wound Repair on Torso (2.6-7.5 cm)
    • Trunk Wound Closure (Complex)
    • Deep Torso Laceration Repair
    • Complex Body Wound Stitching

    CPT Codes:

    • 13101: Repair, complex, trunk; 2.6 cm to 7.5 cm

    Also known as:

    • Complex Wound Repair (Scalp, Arms, Legs)
    • Deep Wound Repair (Extremities)
    • Surgical Closure of Complex Wound
    • Advanced Wound Stitching

    CPT Codes:

    • 13121: Repair, complex, scalp, arms, and/or legs; 2.6 cm to 7.5 cm

    Also known as:

    • Excimer Laser Treatment for Psoriasis (Small Area)
    • Excimer Laser Treatment for Psoriasis (Medium Area)
    • Excimer Laser Treatment for Psoriasis
    • Laser Psoriasis Treatment
    • UVB Laser for Psoriasis
    • Targeted Phototherapy for Psoriasis
    • Excimer Light Therapy
    • Laser Psoriasis Therapy
    • Psoriasis Light Therapy

    CPT Codes:

    • 96920: Excimer laser treatment for psoriasis; total area less than 250 sq cm
    • 96921: Excimer laser treatment for psoriasis; 250 sq cm to 500 sq cm
    • 96922: Excimer laser treatment for psoriasis; over 500 sq cm

    Also known as:

    • Ultraviolet Light Therapy
    • UV Light Treatment
    • Phototherapy
    • Actinotherapy
    • Light Box Therapy

    CPT Codes:

    • 96900: Actinotherapy (ultraviolet light)

    Also known as:

    • Goeckerman Treatment
    • Photochemotherapy
    • Tar and UV-B Therapy
    • Petrolatum and UV-B Therapy
    • Light Therapy for Skin

    CPT Codes:

    • 96910: Photochemotherapy; tar and ultraviolet B (Goeckerman treatment) or petrolatum and ultraviolet B

    Also known as:

    • Freezing Removal of Penile Lesions
    • Cryosurgery for Penile Warts
    • Penile Lesion Cryotherapy
    • Condyloma Freezing

    CPT Codes:

    • 54056: Destruction of lesion(s), penis (eg, condyloma, papilloma, molluscum contagiosum, herpetic vesicle), simple; cryosurgery

    Does Dr. Willoughby accept my insurance?

    Dr. Willoughby accepts most major insurance plans. Important: Please call our office at (619) 320-4898 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Willoughby accept in Chula Vista, CA?

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

    Top Insurances

    • Alignment Health Plan

    • All Other Third Party

    • Blue Shield of California

    • Centene

    • Cigna

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Sharp Health Plan

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Willoughby's office located?

    Dr. Mark Willoughby's Primary Practice

    319 F St Ste 102

    Chula Vista, CA 91910

    (619) 320-4898

    Get Directions

    Dr. Mark Willoughby's Practice 2

    4060 4th Ave Ste 209

    San Diego, CA 92103

    Get Directions

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

    Dr. Willoughby's National Provider Identifier (NPI) number is 1215931993.

    What common questions do patients ask about Dr. Willoughby?

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

    What is Dr. Mark Willoughby's specialty?

    Dr. Willoughby is a Dermatologist near Chula Vista, CA. 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. Contact Dr. Willoughby to book an appointment today.

    Is this Dr. Mark Willoughby affiliated with a ranked Castle Connolly Top Hospital?

    No, Willoughby is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Scripps Mercy Hospital Chula Vista, Jennifer Moreno Department of Veterans Affairs Medical Center. Castle Connolly Top Hospitals 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

    Where can I learn more about Dermatologist?

    Explore Dermatologist with 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 Mark Willoughby accepting new patients in Chula Vista, CA?

    Yes, Dr. Mark Willoughby is accepting new patients at this time.

    Does Dr. Mark Willoughby offer online booking?

    Please contact Dr. Willoughby's office at (619) 320-4898 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Mark Willoughby?

    Please contact Dr. Willoughby's office at (619) 320-4898 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Mark Willoughby have?

    Dr. Mark Willoughby is certified by the American Board of Dermatology.

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