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In Jacksonville, Dr. Denise M. Harnois works as a gastroenterologist at Mayo Clinic Jacksonville.
She graduated from Philadelphia College of Osteopathic Medicine in 1990, which means 36 years have passed since medical school. The DO after her name stands for Doctor of Osteopathic Medicine — a fully licensed physician, trained with an extra emphasis on the musculoskeletal system.
You'll find Dr. Harnois at 4500 San Pablo Rd S, Jacksonville, FL 32224. Call (904) 953-2000 to schedule. She accepts Medicare assignment — useful to know if you are on traditional Medicare. Video (telehealth) appointments are listed as an option.
Hospital affiliations on file with Medicare: Mayo Clinic and Baptist Health Medical Center – Jacksonville.
Your review of Dr. Harnois — wait times, how well things were explained, how you were treated — helps other patients decide.
Practice details
- Specialty
- Gastroenterologist
- Credentials
- DO
- Practice
- Mayo Clinic Jacksonville
- Address
- 4500 San Pablo Rd S, Jacksonville, FL 32224
- Phone
- (904) 953-2000
- Medical school
- Philadelphia College of Osteopathic Medicine (1990)
- Hospital affiliations
- Mayo Clinic, Baptist Health Medical Center – Jacksonville
- Medicare assignment
- Accepts
- Telehealth
- Available
- NPI number
- 1710976683
- FL license no.
- OS7819
Medicare, Medicaid and hospitals
- Medicare patients (2024)
- 210 people with traditional Medicare, average age 69
- Most common services billed to Medicare
- Biopsy of large bowel using a flexible endoscope
- Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito
- Procedures on Medicare Care Compare
- Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 procedures
- Colonoscopy 1–10 procedures
- Medicare quality score (MIPS 2024)
- 84 out of 100 — reported through the group practice
- Hospital pages
- Baptist Health Medical Center - Jacksonville · Mayo Clinic
Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.
Comparing gastroenterologists? See 51 in Jacksonville or 70 across Jacksonville & Northeast Florida.
Other gastroenterologists in Jacksonville, FL
Dr. Harvey G. Phillips, MDGastroenterologist · Borland Groover Clinic, PANo reviews yetJacksonville, NY
Dr. Herbert C. Wolfsen, MDGastroenterologist · Mayo Clinic JacksonvilleNo reviews yetJacksonville, NY
Dr. James R. Kimberly, MDGastroenterologist · Borland Groover Clinic, PANo reviews yetJacksonville, NY
Dr. Jami A. Kinnucan, MDGastroenterologist · Mayo Clinic JacksonvilleNo reviews yetJacksonville, NY
Dr. Jason H. Ross, MDGastroenterologist · Borland Groover Clinic, PANo reviews yetJacksonville, NY
Dr. John Mark B. Gubatan, MDGastroenterologist · Mayo Clinic JacksonvilleNo reviews yetJacksonville, NYWrite a review
Frequently Asked Questions
With Mayo Clinic Jacksonville, at 4500 San Pablo Rd S, Jacksonville, FL 32224.
Call the office at (904) 953-2000.
Yes — Dr. Harnois accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
Mayo Clinic and Baptist Health Medical Center - Jacksonville.
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