2055 W. Hospital Dr. #295 Tucson, AZ 85704
P: 520-219-9125
F: 520-219-9130

About Us

Presidio Surgical Group was established in 1998 in order to serve the surgical needs on the Northwest side of Tucson and outlying areas. The physicians all have privileges at Northwest Medical Center and Northwest Medical Center Oro Valley. The surgeons at Presidio Surgical are all general surgeons and have expertise and special training in minimally invasive laparoscopic procedures. The physicians and staff take pride in the personal care that is given to each patient and their families. We have bilingual staff members and we accept most insurance plans including AHCCCS.



  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield Medicare Advantage
  • Cigna
  • Health Net
  • Health Net Tricare
  • Humana
  • Medicare
  • “UHC Commercial/UHC Community & State (APIPA)”

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*If you will be utilizing insurance for your visit, please remember to bring a photo ID, your insurance card, your referral, and co-pay.
**Accepted insurances vary by physician.


  • Abcesses
  • Abnormal mammogram
  • Adrenal
  • Anorectal diseases
  • Biopsy lymph node
  • Breast cysts
  • Breast lumps
  • Cancers: Anal/Rectal, Breast, Thyroid, Gallbladder, Colon, Pancreas, Lung, Liver, Esophageal, Skin, Stomach
  • Chest mass
  • Colitis (ulcerative)
  • Condyloma
  • Crohn’s disease
  • Diverticulitis
  • Esophageal mass
  • Excision lesion
  • Fecal incontinence
  • Fissure
  • Fistula
  • Gallbladder
  • Gerd (acid reflux)
  • GIST (Gastrointestinal Stromal Tumor)
  • Goiter
  • Hemorrhoids
  • Hernias: inguinal, femoral, ventral, incisional, umbilical, hiatal
  • Lipomas/excision of various lumps and bumps
  • Liver biopsy
  • Liver cyst/mass/Cirrhosis
  • Mediastinal mass
  • Melanoma
  • Neck lumps
  • Pancreatic mass
  • Pancreatitis/Pancreatic cyst
  • Pelvic floor disorders
  • Pilonidal cyst
  • Rectal prolapse
  • Retroperitoneal mass
  • Pancreatic mass
  • Sarcoma
  • Sebaceous cysts
  • Spleen
  • Thoracic (lung)
  • Thyroid nodule

Have questions about which procedure is right for you?

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Advanced Robotic Surgery
Advanced Laparoscopic Surgery
Hernia Surgery
Gallbladder Surgery
Colon Surgery
Spleen Surgery

General Surgery
Advanced Robotic Surgery
Advanced Laparoscopic Surgery

Dr. Jenelle Olson

General Surgery
Advanced Robotic Surgery
Advanced Laparoscopic Surgery
Breast Cancer Surgery
Gastrointestinal Tract Surgery


She is the Best!

5 5 1
Dr. Olson is the ONLY person I will ever let cut on me. I trust her completely. She is caring, intellegent, and thorough. She is qualified as well as very concerned for her patients feelings, needs and health. I never feel rushed when I am with her as she allows me all the time I need. She is a GEM!

Great Doctor!

5 5 1
I recently moved to Arizona and was here for a month when I started getting sick. I went to Northwest Hospital ER and they admitted me. Thanks be to God that the Surgeon that was on duty was Dr. Melcer. He is a most wonderful person and a terrific Doctor. His bedside manner is absolutely calming and you can tell how much he cares for people. He did surgery on me a few months later. My Husband and I both trust him and would gladly reccomend him.

Highly Recommend

5 5 1
My primary physician referred me to Dr. Carnahan after I was diagnosed with a double inguinal hernia. The office staff was friendly and walked me through all the insurance and hospital information. Doctor Carnahan is a soft spoken, efficient surgeon and didn't gloss over the procedure or what I might expect post surgery. We scheduled the procedure exactly one week after the initial office visit. Two weeks after surgery I feel great and would highly recommend him for any general surgery.

Book an Appointment

Each of our doctors are currently accepting new patients.
Schedule your first consultation with us and we can help you figure out the best course of treatment with the right doctor.


Practice Manager

Vicki Gibbons
2055 W. Hospital Drive #295
Tucson, AZ 85704
P: 520-219-9125
F: 520-219-9130