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Dr. Karen Simpson, MD

Fullerton, CA

28 Years of Experience

Accepting patients

    Who is Dr. Simpson, Dermatologist in Fullerton, CA?

    Dr. Karen Simpson, MD is a Dermatologist, who primarily practices in Fullerton, CA with 2 additional practice locations. She has been practicing for over 28 years and is board certified. Dr. Simpson graduated from Keck School of Medicine of the University of Southern California and completed her residency at Cook County Hosp, Pediatrics; E A Conway Med Ctr, Family Medicine. Dr. Simpson is fluent in English, and is currently seeing new patients. Dr. Simpson’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Simpson’s office at (714) 626-6310.

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

    • Residency: Cook County Hosp, Pediatrics; E A Conway Med Ctr, Family Medicine

    • Medical School: University Of West Indies- Fac Med Sci- Kingston- Jamaica | Keck School of Medicine of the University of Southern California

    What languages does Dr. Simpson speak?

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

    • English

    What conditions does Dr. Simpson treat?

    As a Dermatologist, Dr. Simpson 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. Simpson. 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:

    • Personal History of Other Skin Cancer
    • Skin Cancer
    • Past skin cancer
    • Previous cutaneous malignancy
    • History of skin tumor

    ICD-10 Codes:

    • Z85828: Personal history of other malignant neoplasm of skin

    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:

    • Other Post-Surgery Condition
    • Postoperative State
    • Recovery After Surgery
    • Surgical Follow-up

    ICD-10 Codes:

    • Z98890: Other specified postprocedural states

    Also known as:

    • Basal Cell Skin Cancer of the Trunk
    • Basal Cell Skin Cancer of the Scalp or Neck
    • Squamous Cell Skin Cancer of the Face
    • Basal Cell Skin Cancer of the Arm or Shoulder
    • Skin Cancer
    • Skin Cancer Treatment (PDQ®)
    • Basal Cell Carcinoma of Trunk
    • Trunk BCC
    • Rodent Ulcer of Trunk
    • Trunk Basal Cell Tumor
    • Basal Cell Carcinoma of Scalp
    • Basal Cell Carcinoma of Neck
    • Scalp BCC
    • Neck BCC
    • Squamous Cell Carcinoma of Face
    • Facial SCC
    • Cutaneous Squamous Cell Carcinoma of Face
    • Face Skin Malignancy
    • Basal Cell Carcinoma of Arm
    • Basal Cell Carcinoma of Shoulder
    • Arm BCC
    • Shoulder BCC

    ICD-10 Codes:

    • C44519: Basal cell carcinoma of skin of other part of trunk
    • C4441: Basal cell carcinoma of skin of scalp and neck
    • C44329: Squamous cell carcinoma of skin of other parts of face
    • C44619: Basal cell carcinoma of skin of left upper limb, including shoulder

    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:

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

    ICD-10 Codes:

    • L700: Acne vulgaris

    Also known as:

    • Psoriasis
    • Scaly Skin Condition
    • Chronic Skin Disease
    • Autoimmune Skin Disorder

    ICD-10 Codes:

    • L409: Psoriasis, unspecified

    Also known as:

    • Increased Skin Sensitivity
    • Peripheral Nerve Disorder
    • Hyperesthesia
    • Overly Sensitive Skin
    • Abnormal Skin Sensation

    ICD-10 Codes:

    • R203: Hyperesthesia

    Also known as:

    • Basal Cell Skin Cancer of the Face
    • Skin Cancer
    • Skin Cancer Treatment (PDQ)
    • Basal Cell Carcinoma (BCC)
    • Rodent Ulcer
    • BCC
    • Basal Cell Carcinoma

    ICD-10 Codes:

    • C44319: Basal cell carcinoma of skin of other parts of face

    Also known as:

    • Rosacea
    • Facial redness
    • Adult acne
    • Rosy cheeks condition

    ICD-10 Codes:

    • L719: Rosacea, unspecified

    Also known as:

    • Epidermal Cyst
    • Skin Condition
    • Sebaceous Cyst
    • Keratin Cyst
    • Epidermoid Cyst

    ICD-10 Codes:

    • L720: Epidermal cyst

    Also known as:

    • History of Other Specified Condition
    • Past medical conditions
    • Previous health issues
    • History of other diagnoses

    ICD-10 Codes:

    • Z87898: Personal history of other specified conditions

    Also known as:

    • Seborrheic Dermatitis
    • Dandruff, Cradle Cap, and Other Scalp Condition
    • Dandruff
    • Cradle cap
    • Flaky skin condition

    ICD-10 Codes:

    • L219: Seborrheic dermatitis, unspecified

    Also known as:

    • Family History of Other Organ Cancer
    • Cancer
    • Family History
    • Hereditary cancer risk (other organs)
    • Genetic predisposition to various cancers
    • Cancer in the family (other sites)

    ICD-10 Codes:

    • Z808: Family history of malignant neoplasm of other organs or systems

    Also known as:

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

    ICD-10 Codes:

    • B079: Viral wart, unspecified

    Does Dr. Simpson accept my insurance?

    Dr. Simpson accepts most major insurance plans. Important: Please call our office at (714) 626-6310 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Simpson accept in Fullerton, CA?

    Dr. Simpson in Fullerton, 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

    • Blue Shield of California

    • CalOptima

    • Centene

    • Christian Healthcare Ministries

    • CVS Health (formerly Aetna)

    • Medicare

    • Other Health Care Provider

    • Scan Health Plan

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Simpson's office located?

    Dr. Karen Simpson's Primary Practice

    100 E Valencia Mesa Dr Ste 105

    Fullerton, CA 92835

    (714) 626-6310

    Get Directions

    Dr. Karen Simpson's Practice 2

    1950 Sunny Crest Dr Ste 2900

    Fullerton, CA 92835

    Get Directions

    Dr. Karen Simpson's Practice 3

    2720 N Harbor Blvd Ste 210

    Fullerton, CA 92835

    Get Directions

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

    Dr. Simpson's National Provider Identifier (NPI) number is 1376544189.

    What common questions do patients ask about Dr. Simpson?

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

    What is Dr. Karen Simpson's specialty?

    Dr. Simpson is a Dermatologist near Fullerton, 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. Simpson to book an appointment today.

    Is this Dr. Karen Simpson affiliated with a ranked Castle Connolly Top Hospital?

    No, Simpson is not affiliated with a Castle Connolly Top Hospital. 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 Karen Simpson accepting new patients in Fullerton, CA?

    Yes, Dr. Karen Simpson is accepting new patients at this time.

    Does Dr. Karen Simpson offer online booking?

    Please contact Dr. Simpson's office at (714) 626-6310 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Karen Simpson?

    Please contact Dr. Simpson's office at (714) 626-6310 for information regarding telehealth appointment availability or for scheduling assistance.

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