John Petersen
D.O., F.A.C.P., F.A.C.G.

Dr. John Petersen
Language(s) spoken

Dr. Petersen joined Borland Groover in July 2003, having served on the University of Florida (Gainesville) GI/liver faculty for three years and in private practice in Fort Myers for 15 years. He has established himself as a regional expert in diagnostic and therapeutic endoscopy and has special skills and experience in ERCP and endoscopic ultrasound. He has offices at our Southside facility near St. Lukes hospital, as well as at the downtown Pavillion office with Baptist Medical Center.

Dr. Petersen is a dedicated research clinician who has completed numerous phase II and phase III research studies, and is a member of the Borland Groover clinical research group. Dr. Petersen is a Cleveland Clinic and Yale trained clinician with endoscopic skills in double balloon enteroscopy exams of the small intestine, endoscopic mucosal resection of masses in the GI tract, advanced diagnostic and therapeutic ERCP with Sphincter of Oddi manometry, spyglass cholangioscopy, HALO treatment of Barrett’s esophagus, and the anti-reflux endoscopic technique termed STRETTA.

Do you have Chronic Acid Reflux? View the videos below to learn more about Dr. Petersen's experience with the TIF Procedure, gastroparesis and more.

Postgraduate Education
1979 - 1980
Rotating Internship
Doctors Hospitals
1980 - 1983
Residency, Internal Medicine
The Cleveland Clinic
Senior Chief Resident of The Year
The Cleveland Clinic
1982 - 1983
Member, Residency Selection Committee
The Cleveland Clinic
1983 - 1985
Fellowship, Gastroenterology & Hepatology
Yale University School of Medicine

Petersen, JM, Forsmark, CE, Complications of chronic pancreatitis,  Pancreatitis and its complications, (chapter 16, p.313-332) Humana press, Chris E. Forsmark, (Editor), 2004

Petersen, JM, Forsmark, CE, Chronic pancreatitis and maldigestion, Seminars in Gastro-intestinal disease, 13:191-197, 2002

Petersen, JM, Tropical Pancreatitis, Clinical Gastro., 35:61-66, 2002

Petersen, JM, Surgical clip choledocholithiasis, Gastroint. Endoscopy 56:113, 2002

Petersen, JM, Gunshot Cholecystitis, J Clin Gastro. 21:320-322, 1995

Petersen, JM, Barrett’s Esophagus, ASGIA Newsletter March, 1995

Petersen, JM, Managing Upper Gastrointestinal Motility Disorders:  Applications in the Osteopathic Practice - Symposium proceedings. Upper GI Motility Disorders:  The Differential Diagnosis, Jnl of the Amer Osteo Assn. (Supplement), Vol. 95, No. 8, 21-27 1995

Helzberg, JH, Petersen, JM, Boyer, JL, Improved Survival with Primary Sclerosing, Cholangtis. A Review of Clinicopathologic Features and Comparison Of Symptomatic and Asymptomatic Patients. Gastroenterology 92:1869-1875, 1987

Petersen, JM, Views on Management of Acute Pancreatitis, (Letter), Jnl Amer Osteo Assn.,  86:767-768, 1986

Petersen, JM, McCallum, RW, Modlin, IW, The Medical and Surgical Approach to Gastroesophageal Reflux, Practical Gastroenterology, January 1986

Petersen, JM, Tubbs, RR, Savage, RA, Calabrese, LC, Profit, MR. Manolova, Y, Shumaker, A, Tatsumi, E, McClain, K, et al. Small Non-Cleaved B-cell Burkitt-like Chromosome Translocation (8:14) and Epstein-Barr Virus Nuclear-Associated Antigen in a Homosexual Man With AIDS, Am J Medicine 78:141-148, 1985

Petersen ,JM, Ferguson, DR, Gastrointestinal Neurofibromatosis, Jnl Clin Gastro. 6:539-534,  1984

Petersen, JM, Pierach, Ca, Hematin-induced Hemolysis in Acute Porphyria (Letter), Ann Int. Med. 101:877-878, 1984

Awad, I, Bay, JW, Petersen, JM, Nocardial Osteomyelitis of the Spine with Epidural Spinal Cord Compression - A Case Report, Neurosurgery 15:254-56, 1984

Petersen, JM, Primary Hyperaldosteronism, (Letter), Jnl Amer Osteo Assn, April, 1984

Petersen, JM, Salmonella Liver Abscess:  Report of a Case with Successful Computerized Tomography Guided Drainage and Treatment, Jnl Amer Osteo Assn, 83:496-501

Petersen, JM, Awad, I, Ahmad, M, Bay, JW, Mchenry, MC, Nocardia Osteomyelitis and Epidural Abcsess in the Non-immunocompromised Host, Cleveland Clinic Quarterly, 50:453-459, 1983

Petersen, JM, Baldone, SC, Sresthadatta, T, Paranasal Sinus Aspergillosis:  A Report of Two Cases and Review of the Literature”, Jnl Amer Osteo Assn 81:549-553, 1982

Petersen, JM, Greenstein, SI, Imler, DL, Zvariable Dsygammaglobulinemia and Bronchiectasis, Jnl Amer Osteo Assn 79: 391-397, 1980

Petersen, JM, The use of a Polyflex stent to treat an iatrogenic esophageal perforation, (in Press)

Petersen, JM, Giant Brunner gland Hamartoma creating gastroduodenal intussusception, Gastroenterology & Hepatology, August, 2008

Petersen, JM, Klatskin-like Biliary Sarcoidosis: A Spyglass Diagnosis, Gastroenterology & Hepatology, February, 2009

Petersen, JM, McCallum, RW, The Medical Approach to the Treatment of Gastroesophageal Reflux, The Esophagus: Medical and Surgical Management. Hill, LD (Editor), Chapter 8, Pages 78-89, WB Saunders, Philadelphia, 1988

McCallum, RW, Petersen, JM, Prakash, C: Structural Disorders Of The Esophagus, Principles Of Gastroenterology And Hepatology, Gitnick, G (Editor) Chapter 2, pgs. 8-27, Elsevier Science New York, NY, 1988


Petersen, JM, Wolper, JC, Hemosuccus pancreaticus and Pancreatic Pseudocysts,: Am Coll Gastro. Meetings, October 1993

Petersen, JM, Choledochal Cyst and Other Biliary Anomalies, Amer Coll Phys, Florida Chapter, November, 1995

Petersen, JM, McCallum, RW, Sucralfate Delays Gastric Emptying of Solids and Liquids in Duodenal Ulcer Patients, Amer J Gastro Sept., 1985

Petersen, JM, McCallum, RW, Sherwin, RC, Somatostatin Inhibits Gastric Emptying Of Solids and Liquids in Man, Dig Dis & Sci 29:  655, 1984

Petersen, JM, Surgical clip Choledocholithiasis, Florida Chapter of the American College of Physicians, July, 2000

Southerland, JS, Petersen, JM, Valentine, JF, Clinical Efficacy of Infliximab in patients with Chronic Ulcerative Colitis, presented at DDW, May, 2002, San Diego, CA

Petersen, JM, Wireless capsule endoscopy:  The University of Florida experience, and a cost-benefit analysis. American College of Gastro. Annual meeting, October 21, 2003, Baltimore, MD

Etzkorn, KP, Petersen, JM, Double-balloon Enteroscopy in the Private Practice Sector, American College of Gastro Annual meeting, Oct. 24, 2006, Las Vegas, NV

Petersen, JM, Successful placement of a Polyflex stent across an iatrogenic esophageal Perforation, American College of gastroenterology annual meeting, October, 2007, Philadelphia, PA

Petersen, JM ,Trauble, M, McCallum, RW, Segmental Aperistalsis of the Esophagus - Another Cause of Chest Pain and/or Dysphagia, Presented at the Annual Meeting of the AGA May, 1985

Caride, VJ, Prokop, EK, Petersen, JM, Tronacle, FJ, McCallum, RW, Scintigraphic Method for the Evaluation of Colonic Transit, Presented to the Society of Nuclear Medicine, Houston, TX June, 1984

Etzkorn, KP, Petersen, JM, Double-balloon enteroscopy in the Private Practice Sector, presented at the American College of Gastro. Annual meeting, Oct 21, 2006, Las Vegas, NV

Petersen, JM, Surgical Clip Choledocholithiasis, Presented at the Florida Chapter of the American College of Physicians, Boca Raton, FL, 1999

Hernandez, L, Bhutani, M, Mishra, G, Petersen, JM, et al, Pancreatic psuedocyst fluid analysis:  An EUS study to determine malignancy, DDW, 5/02, San Francisco

Petersen, JM, Wireless capsule Endoscopy: The University of Florida experience, and a cost-benefit analysis. ACG annual meeting, Oct., 2003, Baltimore, MD