Gerlinde Tynan, MD, FACS

Breast Surgical Oncology

Gerlinde Tynan, MD | Breast Cancer Surgeon at Rocky Mountain Cancer Centers

Longmont Breast Specialists

1760 E. Ken Pratt Blvd. Ste. 301
Longmont, CO 80504


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Secondary Location(s)


1760 E. Ken Pratt Blvd. Ste. 302
Longmont, CO 80504


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About Gerlinde Tynan, MD, FACS

Gerlinde S. Tynan, MD, FACS, is a board-certified general surgeon specializing in surgical disease of the breast, mainly breast cancer. She received a Bachelor of Science with honors in Molecular Biology from the University of Wyoming in Laramie. After graduating from the University of Washington School of Medicine in Seattle, she completed her general surgery residency at the University of Arizona in Tucson. Dr. Tynan has been specializing in breast surgery since 2009 and built several comprehensive Breast Programs, both in Arizona and here in Colorado, with two achieving NAPBC accreditation under her leadership. Dr. Tynan is an active member of the American Society of Breast Surgeons and a fellow in the American College of Surgeons.

Dr. Tynan is a specialized breast cancer surgeon with expertise in oncoplastic lumpectomies, sentinel lymph node biopsy, axillary dissections and infusion port placements. She performs traditional mastectomies, as well as skin and nipple-sparing mastectomies in conjunction with plastic surgery for reconstruction.

She offers the full spectrum of breast cancer treatment; ranging from supervising the Breast High Risk Clinic, to offering Multidisciplinary Patient Consultations with Medical Oncology, Radiation Oncology, and the Nurse Navigator.

Dr. Tynan presents all new breast cancer patients at the twice monthly Multidisciplinary Cancer Conference, comprised of Breast Surgery, Breast Radiology, Medical and Radiation Oncology, Physical Therapy, Nurse Navigation, Genetics, and Research. This allows the entire team to have valuable input on the care of the patient.

Advanced Practice Providers Working With Dr. Tynan

Board Certifications

Breast Ultrasound
Hidden Scar Breast Surgery


  • Breast Cancer Surgery
    • Mastectomy
  • Breast-Conserving Surgery
    • Lumpectomy
  • High-Risk Management
  • Lymph Node Surgery
  • Oncoplastic Surgery



General Surgery, University of Arizona College of Medicine, Tucson, AZ

Medical School

University of Washington School of Medicine, Seattle, WA

Patient Care Philosophy

I believe in crafting individualized treatment plans for each patient, based on national guidelines, while taking into account their particular pathology, risk factors, and personal wishes.


Additional Information

American College of Surgeons
American Society of Breast Surgeons
Breast Program Leadership Steering Committee
Centura Oncology Clinical Council, Co-Chair
Longmont United Hosital, Chief Medical Officer