Great Lakes Surgical Associates (GLSA)

Great Lakes Surgical Associates (GLSA) Great Lakes Surgical Associates are board certified General Surgeons providing expert surgical servi We have offices in Mt.

Great Lakes Surgical Associates are board certified General Surgeons who specialize in general surgery, bariatric surgery, endoscopic and laparoscopic procedures. GLSA is also the only practice in the area with Board Certified surgeons performing Varicose Vein treatment procedures. GLSA is committed to providing the highest quality surgical care to their patients by minimizing pain, recovery time and chance of complications from their surgical procedure. Services include: Bariatric Surgery, Vein Treatment, Breast Care & Biopsy, Botox, Endoscopy & Colonoscopy, Chronic Heartburn & Reflux Treatment, and Laparoscopic Surgery. Pleasant and Alma Michigan, with Hospital Affiliations at Mid Michigan Medical Center - Midland and Gratiot, and McLaren Central Michigan. Great Lakes Surgical Associates are the area's Premier Surgeons - here for you. Compassionate, caring, confident experts - Great Lakes Surgical Associates!

Happy early Birthday to Dr Bonacci! He is an amazing General Surgeon at Great Lakes Surgical Associates.
03/19/2026

Happy early Birthday to Dr Bonacci! He is an amazing General Surgeon at Great Lakes Surgical Associates.

03/12/2026

UPDATE: Our internet is back-up and phones are working !!!
We are currently having issues with our internet and phones are down.

12/30/2025
12/19/2025

Understanding weight management options is key for patients with obesity-related health issues. Medications can aid moderate weight loss by suppressing appet...

GLSA will be closing at 2:00 p.m. on Monday 10/20/2025 and will re-open at 8:00 a.m. on Tuesday 10/21/2025.
10/16/2025

GLSA will be closing at 2:00 p.m. on Monday 10/20/2025 and will re-open at 8:00 a.m. on Tuesday 10/21/2025.

Congratulations Dr. Bonacci! 2 years in a row!!
07/29/2025

Congratulations Dr. Bonacci! 2 years in a row!!

07/29/2025

Great Lakes Surgical Associates has a open position for a Medical Biller. If you would like to apply, please send resume to lloomis@glsurgical.com.

If you would like to learn more about your weight loss options, join us for a Free weight loss seminar on August 14, 202...
07/23/2025

If you would like to learn more about your weight loss options, join us for a Free weight loss seminar on August 14, 2025 or September 11, 2025. Registration is required. Please register now at

If you are unable to attend an event for which you registered, we are happy to reschedule you for another available date, transfer your registration to another eligible person, or process a full refund. To receive a transfer or refund, you must call (800) 395-1355  prior to the cancellation deadli...

01/29/2025

We are excited to welcome Christina Downer, D.O., to the MyMichigan Family!

Dr. Downer is a skilled family medicine physician with a keen focus on weight management. She holds additional certification in obesity medicine and is a Diplomate of the American Board of Obesity Medicine.

Dr. Downer is accepting new patients at Great Lakes Surgical Associates in Alma, Clare and Mt. Pleasant. To schedule an appointment, please call (989) 463-6699.

Our office is now closed for the holiday. We will reopen on Thursday December 26, 2024. If you have an emergency that c...
12/24/2024

Our office is now closed for the holiday. We will reopen on Thursday December 26, 2024. If you have an emergency that cannot wait until Thursday morning, please call 989-463-1101 and ask for 'Great Lakes Surgical Associates' On call surgeon. Merry Christmas Everyone!!

Address

315 E Warwick Drive
Alma, MI
48801

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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