Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Rietkerk, Dermatologist in Thousand Oaks, CA?
Dr. William Rietkerk, MD is a Dermatologist, who primarily practices in Thousand Oaks, CA. He is board certified. Dr. Rietkerk graduated from University of California At Irvine and completed his residency at New York Medical College. He is a member of the American Academy of Dermatology, American Society of Dermatologic Surgery, American Acne and Rosacea Society, and American Medical Association.. Dr. Rietkerk is fluent in English, and is currently seeing new patients. Dr. Rietkerk’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Rietkerk’s office at (212) 661-3376.
Where did Dr. Rietkerk go to medical school and complete their residency?
Residency: New York Medical College
Medical School: University of California | University of California At Irvine | University of California At Irvine
Is Dr. Rietkerk board certified as a Dermatologist?
Yes, Dr. William Rietkerk, MD is board certified by the American Board of Dermatology
What languages does Dr. Rietkerk speak?
Dr. Rietkerk and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Rietkerk treat?
As a Dermatologist, Dr. Rietkerk 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. Rietkerk. 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:
- Inflamed Seborrheic Keratosis
- Mole
- Benign Tumor
- Skin Condition
- Birthmarks
- Moles
- Common Moles, Dysplastic Nevi, and Risk of Melanoma
- Irritated seborrheic keratosis
- Red skin growth
- Inflamed age spot
- Nevus
- Birthmark
- Skin spot
ICD-10 Codes:
- L820: Inflamed seborrheic keratosis
- D225: Melanocytic nevi of trunk
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:
- 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:
- Acne Vulgaris
- Acne
- Common acne
- Pimples
- Breakouts
ICD-10 Codes:
- L700: Acne vulgaris
Also known as:
- Dark Skin Patches
- Skin Pigmentation Disorder
- Hyperpigmentation
- Melasma
- Age spots
ICD-10 Codes:
- L814: Other melanin hyperpigmentation
Also known as:
- Seborrheic Dermatitis
- Dandruff, Cradle Cap, and Other Scalp Condition
- Dandruff
- Cradle cap
- Seborrheic eczema
ICD-10 Codes:
- L218: Other seborrheic dermatitis
Also known as:
- Other types of warts
- Warts
- Different kinds of warts
- Various warts
- Uncommon warts
ICD-10 Codes:
- B078: Other viral warts
Also known as:
- Allergic Contact Dermatitis
- Allergy
- Rashes
- Allergic skin rash
- Contact allergy
- Skin irritation from allergens
ICD-10 Codes:
- L239: Allergic contact dermatitis, unspecified cause
Also known as:
- Atopic Dermatitis
- Eczema
- Atopic dermatitis
- Itchy skin rash
- Allergic skin condition
ICD-10 Codes:
- L2089: Other atopic dermatitis
What procedures does Dr. Rietkerk perform?
As a Dermatologist, Dr. Rietkerk 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. Rietkerk. 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 Non-Cancerous Skin Growth (1.1-2.0 cm)
- Removal of Multiple Benign Skin Lesions
- Removal of Benign Skin Lesion
- Removal of Precancerous Skin Spots
- 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
- Benign Skin Lesion Excision
- Skin Tumor Removal (Benign)
- Mole Removal (Non-Cancerous)
- Skin Growth Destruction
- Benign Lesion Excision
- Electrosurgery for Skin Growths
- Benign Skin Growth Excision
- Skin Lesion Removal Surgery
- Excision of Non-Cancerous Skin Lesion
- Destruction of Actinic Keratoses
- Precancerous Lesion Treatment
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
- 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)
- 17262: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), trunk, arms or legs; lesion diameter 1.1 to 2.0 cm
- 11402: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter 1.1 to 2.0 cm
- 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
- 11401: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter 0.6 to 1.0 cm
- 17004: Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), premalignant lesions (eg, actinic keratoses), 15 or more lesions
Also known as:
- Skin Biopsy
- Skin Biopsy (Punch)
- Skin Biopsy (Additional Site)
- Additional Skin Biopsy (Punch)
- Shave Biopsy
- Tangential Biopsy
- Skin Lesion Biopsy
- Punch Biopsy
- Dermal Punch Biopsy
- Shave biopsy
- Tangential skin biopsy
- Scoop biopsy
- Multiple Punch Biopsies
- Second Skin Biopsy
- Additional Skin Lesion Biopsy
CPT Codes:
- 11102: Tangential biopsy of skin (eg, shave, scoop, saucerize, curette); single lesion
- 11104: Punch biopsy of skin (including simple closure, when performed); single lesion
- 11103: Tangential biopsy of skin (eg, shave, scoop, saucerize, curette); each separate/additional lesion (List separately in addition to code for primary procedure)
- 11105: Punch biopsy of skin (including simple closure, when performed); each separate/additional lesion (List separately in addition to code for primary procedure)
Also known as:
- Intermediate Wound Repair (Body)
- Intermediate Wound Repair (2.5 cm or less)
- Intermediate Wound Repair (Scalp, Body, Limbs)
- Wounds and Injuries
- Laceration Repair (Body)
- Surgical Wound Closure (Trunk/Limbs)
- Deep Wound Stitching (Body)
- Complex Wound Closure
- Deep Wound Stitching
- Injury Repair
- Surgical Wound Repair
CPT Codes:
- 12032: Repair, intermediate, wounds of scalp, axillae, trunk and/or extremities (excluding hands and feet); 2.6 cm to 7.5 cm
- 12031: Repair, intermediate, wounds of scalp, axillae, trunk and/or extremities (excluding hands and feet); 2.5 cm or less
- 12034: Repair, intermediate, wounds of scalp, axillae, trunk and/or extremities (excluding hands and feet); 7.6 cm to 12.5 cm
Also known as:
- Photodynamic Therapy for Skin Lesions
- Skin Cancer Destruction (Body)
- Skin Cancer Lesion Destruction
- Photodynamic Therapy (PDT) for Skin Lesions
- Skin Cancer Destruction (Body/Limbs)
- PDT for Skin Cancer
- Light Therapy for Precancerous Skin
- Photosensitive Drug Treatment for Skin
- Malignant Lesion Removal (Trunk/Limbs)
- Laser Removal of Skin Cancer
- Cryosurgery for Skin Cancer
- Electrosurgery for Malignant Lesion
- Malignant Skin Lesion Removal
- Skin Cancer Laser Surgery
- Electrosurgery for Skin Lesion
- PDT for Precancerous Skin
- Light Therapy for Skin Cancer
- Photosensitizing Drug Treatment
- Malignant Lesion Destruction
- Skin Tumor Removal without Cutting
CPT Codes:
- 96567: Photodynamic therapy by external application of light to destroy premalignant lesions of the skin and adjacent mucosa with application and illumination/activation of photosensitive drug(s), per day
- 17261: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), trunk, arms or legs; lesion diameter 0.6 to 1.0 cm
- 17271: Destruction, malignant lesion (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), scalp, neck, hands, feet, genitalia; lesion diameter 0.6 to 1.0 cm
- 96573: 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
Also known as:
- Skin Cancer Removal (Trunk, Arms, Legs)
- Removal of Benign Skin Lesion
- Acne Surgery
- Small Benign Lesion Removal (Head/Extremities)
- Plastic and Cosmetic Surgery
- Malignant Lesion Excision
- Skin Tumor Removal
- Cancerous Skin Growth Excision
- Benign Skin Growth Excision
- Skin Lesion Removal Surgery
- Mole Removal
- Skin Tumor Excision
- Milia Removal
- Comedone Extraction
- Cyst Drainage
- Pustule Removal
- Benign Growth Excision (Scalp/Neck)
- Hand/Foot Lesion Removal
- Genital Lesion Excision
CPT Codes:
- 11602: Excision, malignant lesion including margins, trunk, arms, or legs; excised diameter 1.1 to 2.0 cm
- 11403: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter 2.1 to 3.0 cm
- 10040: Acne surgery (eg, marsupialization, opening or removal of multiple milia, comedones, cysts, pustules)
- 11422: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), scalp, neck, hands, feet, genitalia; excised 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 Cancer Removal (Trunk, Arms, Legs)
- Malignant Skin Lesion Removal
- Malignant Lesion Excision
- Skin Tumor Removal
- Cancerous Mole Removal
- Skin Cancer Excision
- Malignant Mole Removal
- Tumor Removal from Skin
- Wide Excision of Skin Lesion
CPT Codes:
- 11603: Excision, malignant lesion including margins, trunk, arms, or legs; excised diameter 2.1 to 3.0 cm
- 11604: Excision, malignant lesion including margins, trunk, arms, or legs; excised diameter 3.1 to 4.0 cm
Also known as:
- Abscess Drainage
- Abscess
- Incision and Drainage (I&D)
- Boil Lancing
- Cyst Drainage
- Skin Abscess Removal
CPT Codes:
- 10060: Incision and drainage of abscess (eg, carbuncle, suppurative hidradenitis, cutaneous or subcutaneous abscess, cyst, furuncle, or paronychia); simple or single
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:
- Simple Foreign Body Removal from Skin
- Subcutaneous foreign body extraction
- Skin foreign object removal
- Minor foreign body incision
CPT Codes:
- 10120: Incision and removal of foreign body, subcutaneous tissues; simple
Also known as:
- External Ear Biopsy
- Outer Ear Biopsy
- Ear Skin Biopsy
- Ear Tissue Sample
CPT Codes:
- 69100: Biopsy external ear
Does Dr. Rietkerk accept my insurance?
Dr. Rietkerk accepts most major insurance plans. Important: Please call our office at (212) 661-3376 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Rietkerk accept in Thousand Oaks, CA?
Dr. Rietkerk in Thousand Oaks, 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
Centene
Crown Cork and Seal Company
CVS Health (formerly Aetna)
Department of Veterans Affairs
Express Scripts
Medicare
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Rietkerk's office located?
Dr. William Rietkerk's Primary Practice
55 Rolling Oaks Dr Ste 200
Thousand Oaks, CA 91361
(212) 661-3376
Recognitions
Memberships & Associations
American Academy of Dermatology
Fellow
American Society of Dermatologic Surgery
Professional Member
American Acne and Rosacea Society
Professional Member
American Medical Association.
Professional Member
What is Dr. Rietkerk's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Rietkerk's National Provider Identifier (NPI) number is 1720311400.
What common questions do patients ask about Dr. Rietkerk?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Rietkerk
What is Dr. William Rietkerk's specialty?
Dr. Rietkerk is a Dermatologist near Thousand Oaks, 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. Rietkerk to book an appointment today.
Is this Dr. William Rietkerk affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Rietkerk is affiliated with Los Robles Regional 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
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 William Rietkerk accepting new patients in Thousand Oaks, CA?
Yes, Dr. William Rietkerk is accepting new patients at this time.
Does Dr. William Rietkerk offer online booking?
Please contact Dr. Rietkerk's office at (212) 661-3376 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Rietkerk?
Please contact Dr. Rietkerk's office at (212) 661-3376 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. William Rietkerk have?
Dr. William Rietkerk is certified by the American Board of Dermatology.
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