Name: Dr. Jonathan G. Patterson

Specialty: General Surgery

Qualification/Board Certification: Doctor of Osteopathic Medicine (DO)

Affiliation(s): St. Mary Medical Center-Hobart; Methodist Hospitals; Indiana Surgical Associates PC

Location: Hobart, Indiana

Languages Spoken: English

Accepting New Patients: Yes

NPI Number: 1588834881

About the Doctor

Dr. Jonathan G. Patterson is one of Hobart’s most trusted and patient-celebrated general surgeons, whose career of more than two decades reflects exceptional dedication to surgical excellence and compassionate patient care in northwest Indiana. He completed his osteopathic medical education at Chicago College of Osteopathic Medicine at Midwestern University — a respected institution known for training well-rounded, patient-centered physicians with a holistic approach to surgical and medical care. His surgical training and over 21 years of practice have equipped him with deep expertise across the full scope of general surgery, with particular strength in oncological procedures such as mastectomy, gastrointestinal surgeries including colon removal, diagnostic procedures such as colonoscopy, and abdominal surgeries including gallbladder removal.

Currently practicing at Indiana Surgical Associates PC — a well-established surgical group in Hobart that includes six additional highly rated general surgeons — Dr. Patterson benefits from a rich collaborative environment that supports shared expertise, peer consultation, and comprehensive surgical coverage for patients across a wide range of surgical needs. Patients consistently describe him as a surgeon who communicates with exceptional clarity, takes time to thoroughly explain diagnoses and surgical plans, and creates a reassuring experience that leaves them feeling confident and well cared for. His 4.9-star overall rating and four patient experience awards — recognizing his thoroughness, clear explanations, and strong patient recommendations — reflect the consistently positive surgical outcomes and deeply personal care he delivers. He holds an active Indiana state medical license through 2027, accepts Medicare and Medicaid, and actively welcomes new patients seeking general surgical care in northwest Indiana.

Education & Training

Medical School: Chicago College of Osteopathic Medicine at Midwestern University

Residency: General Surgery residency training details not specified in available records; established general surgery subspecialty practice with over 21 years of continued surgical development

Fellowship/Additional Training: General Surgery subspecialty practice with over two decades of operative experience in oncological, colorectal, and abdominal surgery

Medical Conditions Treated

Dr. Patterson provides expert surgical evaluation and management of a comprehensive range of general surgical conditions, with treatment volumes in several key areas ranking high compared to Indiana state averages:

• Breast cancer and breast disease requiring mastectomy or surgical intervention
• Gallbladder disease — gallstones, cholecystitis, and biliary conditions
• Colorectal disease requiring colon removal or resection
• Colon cancer and colorectal malignancies
• Appendicitis and appendix disease
• Hernia — inguinal, umbilical, ventral, and incisional
• Bowel obstruction and intestinal disorders
• Gastroesophageal conditions requiring surgical management
• Skin and soft tissue lesions requiring excision
• Abdominal masses and abdominal wall conditions
• Thyroid and parathyroid disease requiring surgical intervention
• Splenic conditions requiring surgical management
• Liver and pancreatic disease requiring surgical evaluation
• Wound care and postoperative surgical complications

Medical Procedures Performed

Dr. Patterson performs a comprehensive range of general surgical procedures with expertise in both open and minimally invasive approaches, including:

• Mastectomy — partial and total breast removal for cancer and disease
• Laparoscopic cholecystectomy — minimally invasive gallbladder removal
• Colonoscopy — diagnostic and therapeutic colorectal evaluation
• Colon resection and colon removal surgery
• Appendectomy — surgical removal of the appendix
• Hernia repair — laparoscopic and open approaches
• Laparoscopic and open abdominal surgery
• Skin and soft tissue lesion excision and biopsy
• Thyroid and parathyroid surgical procedures
• Bowel resection and intestinal surgery
• Sentinel lymph node biopsy for cancer staging
• Port placement for chemotherapy and long-term venous access
• Pre- and post-operative surgical consultations and care planning

Services Offered

Dr. Patterson’s practice at Indiana Surgical Associates PC in Hobart offers patients a comprehensive general surgical service delivered with exceptional clinical skill, warmth, and the reassuring communication style that has earned him one of northwest Indiana’s highest patient satisfaction ratings among general surgeons. From the initial surgical consultation through the operating room and into postoperative recovery, Dr. Patterson takes the time to ensure patients and their families fully understand every aspect of their diagnosis, surgical plan, and expected recovery — a quality that patients describe as profoundly comforting during what can be a stressful and vulnerable time.

For patients facing breast cancer surgery, Dr. Patterson’s expertise in mastectomy — with treatment volumes ranking high compared to Indiana state averages — makes him a highly experienced and trusted surgical partner for women navigating one of the most significant surgical decisions they may face. Similarly, his expertise in colonoscopy, colon removal, and gallbladder surgery reflects a broad gastrointestinal surgical practice that addresses some of the most common and important abdominal conditions requiring surgical intervention. The collaborative environment at Indiana Surgical Associates PC, which includes six additional highly rated general surgeons, ensures that patients benefit from a team-oriented approach to complex surgical cases while maintaining the continuity and personal relationship with Dr. Patterson that his patients consistently value. His dual hospital affiliations with St. Mary Medical Center-Hobart and Methodist Hospitals provide flexible surgical venue options to meet each patient’s needs.

Services include:

• Comprehensive general surgical consultations and preoperative evaluations
• Mastectomy and breast surgery for cancer and benign disease
• Laparoscopic cholecystectomy and gallbladder disease management
• Colonoscopy — diagnostic screening and therapeutic colorectal procedures
• Colon resection and colorectal surgery
• Minimally invasive and open hernia repair
• Appendectomy and emergency abdominal surgery
• Abdominal and gastrointestinal surgical procedures
• Thyroid and parathyroid surgical evaluation and treatment
• Soft tissue lesion excision and biopsy
• Sentinel lymph node biopsy and oncological staging procedures
• Chemotherapy port placement and long-term venous access
• Post-surgical wound care and complication management
• Telehealth services (contact the office directly for availability)
• Online appointment booking for new and existing patients

Accepted Insurances

Dr. Patterson accepts the following insurance plans, including Medicare and Medicaid:

• Aetna – EPO, HMO, Medicare, POS, PPO
• Cigna – PPO
• CMS Medicare – Medicare
• Elevance – EPO, HMO, Medicaid, Medicare, POS, PPO
• Humana – Medicare, PPO
• Medica – PPO
• Regence Health Plans – PPO
• United Healthcare – HMO, Medicaid, Medicare, POS, PPO

Practice Locations

Location 1 Address: 7895 Grand Blvd, Hobart, IN 46342

Phone: (219) 947-1910

Hospital Affiliations

• St. Mary Medical Center-Hobart — Hobart, IN
• Methodist Hospitals — Gary, IN