Summary

Dr. John Demay is a dermatologist who has been caring for patients for over three decades. He earned his medical degree from the University of Nebraska College of Medicine and completed his residency training at Oregon Health & Science University. With 37 years of experience in dermatology, Dr. Demay brings extensive knowledge to diagnosing and treating skin conditions. He speaks English with his patients.

Dr. Demay practices in Sioux City, Iowa, with affiliations at Saint Lukes Regional Medical Center and MercyOne Siouxland Medical Center. He focuses on treating serious skin conditions including skin cancer and psoriasis, as well as common concerns like acne. His expertise includes performing specialized diagnostic tests and surgical procedures to help patients receive accurate diagnoses and effective treatment. Patients have given him an average rating of 4.0 on Vitals.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4
  • 37 years of experience
  • 21 insurance plans accepted
  • speaks English
  • Oregon Health & Science University
  • 5 written reviews
  • 1 specialty
  • 12 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. John Mark Demay has 3 locations

Dermatology Associates Of Siouxland Pc

2930 Hamilton Blvd Lowr FSioux City, IA 51104
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 12:00 pm
SatClosed
SunClosed

Saint Lukes Regional Medical Center

2720 Stone Park BlvdSioux City, IA 51104

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Dr. John Mark Demay, MDDr. Kimberly K. Schulz, MDDr. Anna Chacon, MDTrisha Khanna, MD, FAAD
DermatologyDermatologyDermatologyDermatology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.8 
37 Years of Experience 32 Years of Experience 14 Years of Experience 8 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English, Spanish, French Speaks English, Spanish, Italian, Hindi
Sioux City , IAMoline , ILMiami , FLOrlando , FL
Med School: University Of Nebraska College Of Medicine Med School: University Of Iowa Med School: Brown Medical School Med School: Columbia University College Of Physicians & Surgeons
Current Profile
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Insurance Plans Accepted by Dr. John Mark Demay

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Avera Health Plans
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - PPO
  • First Choice Health
  • Gilsbar 360 Alliance
  • HealthPartners
  • Humana
  • Humana - Medicare (Advantage HMO)
  • Medica
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Oscar Health Insurance
  • Physicians Mutual
  • Reliance Standard
  • Sanford Health Plan
  • State Farm
  • STLDentalPlan| LLC
  • UnitedHealthcare
  • UnitedHealthcare - Medicare (Advantage HMO)

Medical Specialties

Dr. John Mark Demay has the following specialty

Specialty Expertise

Dr. John Mark Demay has the following 12 areas of expertise

  • Acne (Acne Vulgaris)
  • Acne Rosacea
  • Actinic Keratosis
  • Basal Cell
  • Excision
  • Melanoma
  • Mole
  • Psoriasis
  • Rash
  • Rosacea
  • Skin Biopsy
  • Skin Cancer

Certifications, License, & Education

37 Years Experience

MEDICAL LICENSE

Medical Doctor, Iowa, 2026, Active

EDUCATION & TRAINING

Residency

Oregon Health & Science University

Medical School

University Of Nebraska College Of MedicineGraduated in 1989

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Frequently Asked Questions

Is Dr. John Demay accepting new patients?
Dr. John Demay is accepting new patients on Vitals. View Dr. John Demay's profile on Vitals to make an appointment.
How can I make an appointment with Dr. John Demay?
You can find contact information for Dr. John Demay here on Vitals.
What languages does Dr. John Demay speak?
Dr. John Demay speaks English.
Which hospitals is Dr. John Demay affiliated with?
Dr. John Demay is affiliated with Saint Lukes Regional Medical Center.
Does Dr. John Demay accept virtual/telehealth appointments?
Dr. John Demay has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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