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Diabetes and Endocrinology Clinic at the Gym

Endocrinology • Holland, MI

About

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Diabetes and Endocrinology Clinic at the Gym in Holland, Michigan offers comprehensive diagnosis, treatment, and management of endocrine and hormone-related diseases. Led by Dr. Karl Nadolsky, a board-certified endocrinologist, the clinic provides services including diabetes management, obesity management, thyroid and adrenal disorders, polycystic ovary syndrome, hormone therapy, CGM and insulin pump management, and bone health care, with support from registered dietitians and physician assistants.

Clinic Type

Endocrinology

Address

650 S Waverly Road, Holland, MI 49423

Phone

616-312-2859

Email

—

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.endocrineclinicatthegym.com/

Services Offered

  • Endocrinology
  • Diabetes management
  • Obesity management
  • Hormone therapy
  • Dietitian / diabetes education
  • CGM and insulin pump management
  • Metabolic syndrome management
  • Fatty liver evaluation
  • Polycystic ovary syndrome (PCOS) management
  • Pituitary, thyroid and adrenal disorders
  • Bone and calcium disorders
  • Male and female hormone therapy

Technology & Equipment

  • CGM (continuous glucose monitoring)
  • Insulin pump therapy
  • Diabetes education
  • Nutrition counseling

Team

  • Dr. Karl Nadolsky, DO; board-certified in Internal Medicine, Diabetes, Endocrinology & Metabolism, and Obesity Medicine; Assistant Clinical Professor of Medicine at Michigan State University College of Human Medicine — Endocrinologist; Director of the Endocrine Clinic at the Gym
  • Michelle, Diabetes educator; over 12 years of experience; expertise in insulin pump therapy and CGM — Diabetes care specialist/diabetes educator

Insurance & Payment

—

Languages Spoken

  • English

FAQs

What services are offered?

Comprehensive diagnosis, treatment and management of endocrine and hormone-related diseases including obesity, diabetes, and other hormone disorders.

Who is the endocrinologist?

Dr. Karl Nadolsky, DO, clinical endocrinologist and director of the clinic.

Photos

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What Patients Say

Overall sentiment across review platforms: mixed

  • US News (Dr. Karl Nadolsky): 4.588235294117647/5 (17 ratings total)
  • Birdeye (Holland Hospital Endocrinology): 4.5 (17 reviews)
  • Vitals (Dr. Karl Nadolsky): 4.6 out of 5 stars (68 reviews (shown/indicated on page))

Patients praise

  • Helpful, kind, and attentive staff/providers
  • Clear communication and explanation of medical information
  • Patients reporting positive outcomes/ongoing care satisfaction
  • Responsive communication (e.g., answering concerns via phone call)

Common complaints

  • Some patients report endocrinology/thyroid care knowledge concerns
  • Disappointment with offered weight-loss–focused treatment options
  • Occasional rushed appointments mentioned in summary
  • Long wait times for appointments (in at least one review)

"“What. The staff is wonderful, Cathy is probably the nicest in office nurse I've ever had!! Dr.Nadolsky is so kind, so thorough and reassuring.”"

— Diabetes and Endocrinology Clinic at the Gym website testimonials

"“This is not an endocrinologist office. They are very un knowledgeable in thyroid care and endocrine as a whole. Only thing they recommended was weight loss medication. to say I’m disappointed would be an understatement. Find another office who knows their stuff!!”"

— Birdeye review snippet (Holland Hospital Endocrinology)

"“After waiting months for this appointment, I was finally able to see the assistant as well as doctor… first option offered to me was weight loss injections and then pills.”"

— Birdeye review snippet (Holland Hospital Endocrinology)

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

In the News

Information sourced from the clinic's website as of July 11, 2026.

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