Dermatology Services

Evaluations for Skin Cancer

Dr. Mark Turek provides comprehensive skin cancer care at the family practice clinic of Orange City Area Health System. He offers various services, including thorough screenings, meticulous evaluations, precise biopsies, and expert excisions. With his expertise and state-of-the-art equipment, Dr. Turek ensures that his patients receive the best possible care for their skin cancer concerns.

During the evaluations, Dr. Turek reviews the patient's personal and family history, as well as their personal risk factors. He performs a general evaluation and uses dermoscopy, a specific technique to evaluate lesions and determine the need for biopsy.

OCAHS Medical Clinic
1000 Lincoln Circle SE
Orange City, IA 51041

Clinic Hours:
Monday - Thursday: 7:30am - 5pm
Friday: 7:30am - 4:30pm

You can schedule an appointment by calling the Orange City Area Health System Medical Clinic or by consulting with your family physician.

Medical Clinic: (712) 737-2000

Types of Skin Cancer


Melanoma is the deadliest form of skin cancer and can develop anywhere on your body, including your face, body, and legs. It even occurs on areas of skin not usually exposed to the sun. Melanomas can appear as brown spots with darker dots, dark moles, moles that bleed or are painful, moles with irregular borders, or moles that change their shape, size, or color. Early detection and treatment are crucial.

Actinic Keratosis

Actinic keratosis consists of precancerous growths that look like dry, scaly skin patches. It usually develops on your hands, forearms, head, or neck. Actinic keratosis can progress into squamous cell carcinoma if left untreated.

Squamous Cell Carcinoma

Squamous cell carcinoma is the second most common form of skin cancer and often appears on your face, neck, ears, arms, or hands. It might look like a firm red bump, a sore that comes and goes, or scaly, crusty patches of skin. Early detection and treatment can prevent squamous cell carcinoma from spreading.

Basal Cell Carcinoma

Basal cell carcinoma is the most common type of skin cancer and often occurs on areas of your skin exposed to the sun. It can develop on your arms, head, or neck, and might invade surrounding tissues if left untreated.
Basal cell carcinoma might appear as a flat, brown or flesh-colored scar-like lesion, a waxy or pearly bump, or a scabbed or bleeding sore that comes and goes.

Skin Disease Treatment

Orange City Area Health System is pleased to announce that it now offers Dermatology services through its specialty/outreach clinic. Raymond Kuwahara, MD from CNOS, is now available to accept patients at the Orange City Specialty clinic on the first day of every month. He is a Board Certified Dermatologist, a Diplomate of the American Board of Dermatology, and a Fellow of the American Academy of Dermatology. Dr. Kuwahara specializes in preventing, diagnosing, and treating skin cancers, as well as acne, warts, and other skin diseases. He completed his undergraduate and master's degrees at the University of Washington in Seattle, followed by his medical degree from Hahnemann School of Medicine (Drexel University) in Philadelphia.

You can schedule an appointment by calling CNOS or by consulting with your family physician.

OCAHS Dermatology Provider

Mark Turek, DO

Family Medicine, Obstetrics, Emergency Medicine, Dermatology

CNOS Dermatology Providers

Specialty and Outreach Providers