Dr. John M. Demay
- Gender: Male
- Experience: 32 years
- Graduated from: University Of Nebraska College Of Medicine
- Graduation year: 1989
- Sole propriator: Yes
- NPI: 1366447294
Dr. John M. Demay MD
Dermatologist
He is located at 2930 Hamilton Boulevard Ste 102 in Sioux City, IA 51104. Can help patients with the following: Alopecia Areata (AA), Hyperhidrosis, Ingrown Hair, Keloid, Rosacea, Thrush. His National Provider Identifier (NPI) number is 1366447294. Appointment can be made via the phone number (712) 277-9370. He is affiliated with 2 practices and 1 hospitals.
Conditions treated
Dr. John Mark Demay, being an dermatologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. John M. Demay.
- Acne
- Actinic Keratosis
- Albinism
- Alopecia Areata (AA)
- Athlete's Foot
- Birthmarks
- Blister
- Bug Bites
- Contact Dermatitis
- Dermabrasion
- Dry Skin
- Eczema
- Erythema Nodosum
- Folliculitis
- Hair Loss
- Heat Rash
- Henoch-Schonlein Purpura (HSP)
- Hives
- Hyperhidrosis
- Impetigo
- Ingrown Hair
- Intertrigo
- Jock Itch
- Keloid
- Keratosis Pilaris (KP)
- Lichen Planus
- MRSA Infection
- Melanoma
- Melasma
- Moles
- Molluscum Contagiosum
- Pityriasis Rosea
- Porphyria
- Psoriasis
- Ringworm
- Rosacea
- Scabies
- Scars
- Sebaceous Cyst
- Seborrhea
- Seborrheic Keratosis
- Shingles
- Skin Biopsy
- Skin Cancer
- Skin Itching
- Skin Tag
- Streptococcal Infections
- Stretch Marks
- Sunburn and Sun Poisoning
- Thrush
- Tinea Versicolor
- Varicose Veins
- Vitiligo
- Warts
- Wrinkles
Procedures Performed by Dr. John M. Demay
Insurances Accepted by Dr. John M. Demay
- Medicare
Medicare Enrollment
Dr. John M. Demay is enrolled to bill Medicare as a Practitioner - Dermatology .
Bills through: Dermatology Associates Of Siouxland Pc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| Galderma International | $125 |
| Strata Skin Sciences | $44 |
| Aqua Pharmaceuticals | $14 |
Other
| Food and Beverage | $186 |
Studies
UNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated in 1989
Looking for more Dermatologists?
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Questions & Answers
Does Dr. John Mark Demay have affiliation with practices?
Dr. John Mark Demay is affiliated with Cardiovascular Associates. For the full list of practices see this list.
What conditions does Dr. John Mark Demay treat?
Dr. John Mark Demay provides treatment for Alopecia Areata (AA), Hyperhidrosis, Ingrown Hair, Keloid, Rosacea, Thrush. For the full list see this list.
Does Dr. John Mark Demay accept patients with Medicare?
Yes, Dr. John Mark Demay accepts patients with Medicare.
Has Dr. John Mark Demay affiliation with hospitals?
Dr. John Mark Demay is affiliated with ST LUKES REGIONAL MEDICAL CENTER.
Where can you meet with Dr. John Mark Demay?
Dr. John Mark Demay's office is located at 2930 Hamilton Boulevard Ste 102 in Sioux City, IA 51104.