Dr. Gary L. Timmerman
- Gender: Male
- Experience: 37 years
- Graduated from: Washington University School Of Medicine
- Graduation year: 1984
- Sole propriator: No
- NPI: 1326095332
Dr. Gary L. Timmerman MD
Surgeon
He is located at 1508 West 22nd Street Ste 101 in Sioux Falls, SD 57105. Can help patients with the following: Appendicitis, Crohn's Disease, Esophageal Cancer, Inflammatory Bowel Disease (IBD), Pancreatitis, Sebaceous Cyst. His National Provider Identifier (NPI) number is 1326095332. Appointment can be made via the phone number (605) 328-3840. He is affiliated with 3 practices and 1 hospitals.
Conditions treated
Dr. Gary Timmerman, being an surgeon, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Gary L. Timmerman.
- Achalasia
- Anal Fissure
- Appendicitis
- Boils
- Cancer
- Colon Cancer
- Crohn's Disease
- Cyst
- Diverticulosis
- Enlarged Spleen
- Esophageal Cancer
- Gallstones
- Gangrene
- Heart Disease
- Hemorrhoids
- Hernia
- Inflammatory Bowel Disease (IBD)
- Lymphedema
- Pancreatitis
- Peptic Ulcer
- Pilonidal Cyst
- Sebaceous Cyst
- Ulcerative Colitis
Procedures Performed by Dr. Gary L. Timmerman
Insurances Accepted by Dr. Gary L. Timmerman
- Medicare
Medicare Enrollment
Dr. Gary L. Timmerman is enrolled to bill Medicare as a Practitioner - General Surgery .
Bills through: Sanford Clinic
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| Intuitive Surgical | $138 |
| Davol | $137 |
| Ethicon Us | $126 |
Other
| Food and Beverage | $1235 |
| Travel and Lodging | $79 |
| Other | $6 |
Studies
WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1984Affiliated practices
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Questions & Answers
Where can you meet with Dr. Gary Timmerman?
Dr. Gary Timmerman's office is located at 1508 West 22nd Street Ste 101 in Sioux Falls, SD 57105.
Does Dr. Gary Timmerman accept patients with Medicare?
Yes, Dr. Gary Timmerman accepts patients with Medicare.
Does Dr. Gary Timmerman have affiliation with practices?
Dr. Gary Timmerman is affiliated with Sanford Cardiovascular Institute. For the full list of practices see this list.
What conditions does Dr. Gary Timmerman treat?
Dr. Gary Timmerman provides treatment for Appendicitis, Crohn's Disease, Esophageal Cancer, Inflammatory Bowel Disease (IBD), Pancreatitis, Sebaceous Cyst. For the full list see this list.
Has Dr. Gary Timmerman affiliation with hospitals?
Dr. Gary Timmerman is affiliated with SANFORD USD MEDICAL CENTER.