Summary

Dr. Keith Kostelnik specializes in dermatology, focusing on the diagnosis and treatment of skin conditions. He earned his medical degree from Sidney Kimmel Medical College at Thomas Jefferson University and completed his residency at Mary Hitchcock Memorial Hospital. With 34 years of clinical experience, Dr. Kostelnik has developed extensive expertise in skin care and dermatological treatments. He provides care in English to patients throughout the region.

Dr. Kostelnik is affiliated with Southern Maine Health Care and practices at multiple Dermatology Associates locations in Portland, Biddeford, and Brunswick, Maine. He frequently treats patients with seborrheic keratosis, unusual moles, and abnormal moles that require monitoring. His procedural expertise includes removing skin lesions, performing cryotherapy to freeze problematic skin growths, and using laser therapy for various skin concerns. Patients have given Dr. Kostelnik an average rating of 3.5 out of 5 stars on Vitals.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 3.5
  • 34 years of experience
  • 27 insurance plans accepted
  • speaks English
  • Mary Hitchcock Memorial Hospital
  • 2 written reviews
  • 1 specialty
  • 11 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. Keith Erik Kostelnik has 3 locations

Dermatology Associates Llc

50 Sewall StPortland, ME 04102
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 - 5:00 pm
SatClosed
SunClosed

Dermatology Associates Llc

57 Barra RdBiddeford, ME 04005
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 - 5:00 pm
SatClosed
SunClosed

Dermatology Associates Llc

2 Admiral Fitch AveBrunswick, ME 04011
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 - 5:00 pm
SatClosed
SunClosed

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Dr. Keith Erik Kostelnik, MDDr. Anna Chacon, MDTrisha Khanna, MD, FAADDr. Anne E Allen, MD
DermatologyDermatologyDermatologyDermatology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.5 
34 Years of Experience 14 Years of Experience 8 Years of Experience 9 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English, Spanish, French Speaks English, Spanish, Italian, Hindi Speaks English
Portland , MEMiami , FLOrlando , FLKnoxville , TN
Med School: Sidney Kimmel Medical College At Thomas Jefferson University Med School: Brown Medical School Med School: Columbia University College Of Physicians & Surgeons Med School: University Of Michigan Medical School
Current Profile
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Insurance Plans Accepted by Dr. Keith Erik Kostelnik

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Blue Cross Blue Shield
  • CHAMPVA
  • CHAMPVA - HMO
  • Cigna
  • Cigna-HealthSpring
  • Community Health Options
  • GEHA
  • Golden Rule
  • Harvard Pilgrim Health Care
  • HealthPartners
  • Humana
  • Humana - PPO
  • Liberty HealthShare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • STLDentalPlan| LLC
  • Tricare
  • Tufts Health Plan
  • UniCare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • UnitedHealthcare Oxford
  • Wellcare

Medical Specialties

Dr. Keith Erik Kostelnik has the following specialty

Specialty Expertise

Dr. Keith Erik Kostelnik has the following 11 areas of expertise

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

Certifications, License, & Education

34 Years Experience

MEDICAL LICENSE

Medical Doctor, Maine, 2026, Active

EDUCATION & TRAINING

Residency

Mary Hitchcock Memorial Hospital

Medical School

Sidney Kimmel Medical College At Thomas Jefferson UniversityGraduated in 1992

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Frequently Asked Questions

What languages does Dr. Keith Kostelnik speak?
Dr. Keith Kostelnik speaks English.
How can I make an appointment with Dr. Keith Kostelnik?
You can find contact information for Dr. Keith Kostelnik here on Vitals.
Does Dr. Keith Kostelnik accept virtual/telehealth appointments?
Dr. Keith Kostelnik has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Keith Kostelnik's office located?
Dr. Keith Kostelnik's office is located at 50 Sewall St, Portland, ME, 04102.
Which hospitals is Dr. Keith Kostelnik affiliated with?
Dr. Keith Kostelnik is affiliated with Southern Maine Health Care.

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