After 41 years of dedicated practice, Dr. Cornatzer has retired,
and Bismarck Dermatology Center closed on May 1, 2026.
We are deeply grateful for the trust and support our patients have shown
throughout the years. It has been our privilege to care for this community.
Thank you for allowing us to be part of your care.
Medical Records
Brightside Specialty Clinics is now the official custodian of medical records for Bismarck Dermatology Center and will handle all future medical record requests.
To request your records, please contact:
Brightside Specialty Clinics
310 N. 10th Street
Bismarck, ND
Phone: 701-877-2020
Please contact Brightside Specialty Clinics directly for information about its medical-record release process and any required forms.
Your medical records remain secure and will continue to be available in accordance with applicable record-retention requirements.
Payments
Payments may still be mailed to the Bismarck Dermatology Center post office box address listed on your statement.
To make a payment by credit card or HSA card, please mail your payment information to that address. If you do not have a current statement, please include:
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Patient’s full name
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Patient’s date of birth
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Amount to be paid
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Card number
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Expiration date
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Security code
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Billing ZIP code
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Signature authorizing the payment
Please do not email credit card or HSA card information.
Punch Biopsy
A punch biopsy is used when your provider feels it's essential to obtain a deeper tissue sample from a skin lesion or abnormal growth. This method allows your specialist to examine both the surface and deeper layers of the skin, ensuring an accurate diagnosis.
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When might a punch biopsy be performed?
To diagnose:
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Skin cancer (such as basal cell carcinoma, squamous cell carcinoma, or melanoma)
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Rashes or skin disorders like psoriasis or dermatitis
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Infections - bacterial, viral, or fungal infections
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Unusual growths such as moles, cysts, or other skin lesions that need further evaluation.
Your specialist may suggest a punch biopsy if you have a growth or lesion that requires deeper tissue analysis to determine its natures and guide treatment.
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How does a punch biopsy work?
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Preparation: The area around the skin lesion is cleaned and a local anesthetic is applied.
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Punching the Skin: Your provider will use a specialized circular instrument to remove a small, full-thickness section of the skin. The punch biopsy tool captures a cylindrical sample that includes both the superficial and deeper layers of the skin, allowing for a thorough evaluation.
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Closing the Wound: The biopsy site is typically closed with a few stitches, and a bandage is applied to protect the area.
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Post-Procedure Care: You'll be given specific aftercare instructions to ensure proper healing and minimize the risk of infection or complications.
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Benefits of a
punch biopsy
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Comprehensive Sample: The procedure allows your dermatologist to examine both the superficial and deeper layers of the skin, providing a more accurate diagnosis.
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Minimal Discomfort: The procedure is generally quick, and the local anesthetic ensures minimal discomfort during the process.
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Efficient Recovery: Most patients experience a quick recovery, with any stitches typically removed within 7-10 days, depending on the location of the biopsy.
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Accurate Diagnosis: A punch biopsy helps determine the exact nature of a skin lesion, which is critical for making informed decisions about treatment.
Is a Punch Biopsy Safe?
Yes, punch biopsies are performed safely and expansively in dermatology. The risk of complication is minimal, but it is essential to follow aftercare instructions to reduce any risks of infection, bleeding, or scarring.