Summary

Dr. Marcia Tonnesen is a dermatologist with over five decades of experience treating skin conditions and disorders. She earned her medical degree from the University of Utah School of Medicine and completed her internship at Barnes Hospital in 1974, followed by her residency at Massachusetts General Hospital in 1978. With 53 years in practice, Dr. Tonnesen has developed extensive expertise in medical dermatology. She provides care in English.

Dr. Tonnesen practices at Stony Brook Dermatology Associates in Stony Brook, New York, and maintains hospital privileges at Stony Brook University Hospital. She specializes in treating complex skin conditions including contact dermatitis, cutaneous T-cell lymphoma, and psoriasis. Her practice focuses on medical dermatology and phototherapy treatments. Patients have given her an average rating of 2.8 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 2.8
  • 53 years of experience
  • 18 insurance plans accepted
  • speaks English
  • Massachusetts General Hospital
  • 2 written reviews
  • 1 specialty
  • 11 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Female

Patients’ Perspective

  • Flexible scheduling

Office Location

Stony Brook Dermatology Associates

1320 Stony Brook Rd Ste 200Stony Brook, NY 11790
MonClosed
TueClosed
Wed10:00 am - 3:00 pm
ThuClosed
FriClosed
SatClosed
SunClosed

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Marcia G Tonnesen, MDChristopher Byrne, MPAS, RPA-CDr. Zoila Flashner, MD, FAADYan Eve Jin, FNP-C
DermatologyDermatologyDermatologyDermatology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
2.8 
4.4 
53 Years of Experience 24 Years of Experience 31 Years of Experience 6 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English Speaks English
Stony Brook , NYFranklin Square , NYAmityville , NYRiverhead , NY
Med School: University of Utah School of Medicine Med School: University of Nebraska Med School: New York University Med School: Molloy College
Current Profile
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Insurance Plans Accepted by Marcia G Tonnesen

  • Accepts Medicare
  • Accepts Medicaid
  • (Anthem) EMP HEALTH CHOICE HMO
  • (Anthem) EMP HEALTH CHOICE PPO
  • (Anthem) EMP HEALTH CHOICE SR
  • Aetna
  • Beech Street
  • CIGNA HMO
  • CIGNA PPO
  • GHI / MEDICARE PLUS
  • GHI CBP
  • GHI HMO
  • GREAT WEST
  • HEALTHFIRST
  • HIP
  • MagnaCare
  • MET EMPIRE
  • MULTIPLAN
  • OXFORD
  • UNITED HEALTHCARE

Medical Specialties

Marcia G Tonnesen has the following specialty

Specialty Expertise

Marcia G Tonnesen 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

53 Years Experience

Marcia G Tonnesen holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2027.

Education & Training

Residency

Completed their residency at Massachusetts General Hospital in 1978.

Internship

Completed their internship at Barnes Hospital in 1974.

Medical School

Graduated from University of Utah School of Medicine in 1973.

NPI Number

Marcia G Tonnesen's NPI number is 1205883238.

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Frequently Asked Questions

Does Marcia Tonnesen accept virtual/telehealth appointments?
Marcia Tonnesen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Marcia Tonnesen affiliated with?
Marcia Tonnesen is affiliated with STONY BROOK UNIVERSITY HOSPITAL.
What languages does Marcia Tonnesen speak?
Marcia Tonnesen speaks English.
Does Marcia Tonnesen accept my insurance?
You can see the insurance plans that Marcia Tonnesen accepts on their Vitals profile.
Is Marcia Tonnesen accepting new patients?
Marcia Tonnesen is accepting new patients on Vitals. View Marcia Tonnesen's profile on Vitals to make an appointment.

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