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About

Aspirus Health is a nonprofit health system based in Wausau, Wisconsin, operating 19 hospitals across Wisconsin, Minnesota, and the western Upper Peninsula of Michigan. It includes Aspirus Wausau Hospital and recently acquired Saint Luke’s Duluth (affiliations finalized in 2024). The system offers a broad range of services and programs, including primary care, specialty care (e.g., heart and vascular, cancer, women’s health), advanced care planning, medical records, and classes/events. Key details: - headquarters: Wausau, WI - annual revenue: about $164.6 million - employees: roughly 1,986 (plus recent growth) - notable expansion: acquired St. Luke’s (Duluth) in 2024; Ontonagon, MI hospital closure and $30M Keweenaw investment planned (2024) - contact: socialmedia@aspirus.org; main phone lines 800-283-2881 / 715-847-2121 - official site: aspirus.org If you’re specifically looking for endocrinology services in Rhinelander, Aspirus’ broader system includes specialty care; you may want to check Aspirus Rhinelander Clinic or contact Aspirus for endocrinology availability in Rhinelander.

Clinic Type

Endocrinology

Address

2200 Westwood Dr, Wausau, Wisconsin 54401, US

Phone

(800) 847-4707

Email

jobs@aspirus.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Endocrinology care and treatment of hormones and related glands
  • Pediatric endocrinology (in collaboration with UW Health and American Family Children’s Hospital)
  • Coordination of care
  • Diagnosis
  • Education
  • Evaluation
  • Testing
  • Diabetes management and endocrine-related conditions
  • Adrenal disorders
  • Diabetes
  • High blood pressure
  • Male infertility
  • Osteoporosis
  • Pituitary disorders
  • Polycystic ovary syndrome
  • Thyroid cancer
  • Thyroid diseases

Insurance & Payment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Vitals (Aspirus Endocrinology Clinic Rhinelander practice page): No aggregated overall rating shown; some provider listings show individual ratings (e.g., 3.7, 4.9, 4.9, 4.5) (Be first to leave a review / no review count shown on the practice page)
  • WebMD (Aspirus Endocrinology Clinic Rhinelander practice page): 0 ratings (0 ratings)
  • WebMD (Dr. John Carroll, Endocrinology): 4.0 out of 5 (4 ratings)
  • Vitals (Dr. John E. Carroll): 2.3 average rating (3 ratings with 2 written reviews)
  • U.S. News / Press Ganey (Dr. John E. Carroll): 2/5 overall patient experience rating
  • Aspirus Rhinelander Hospital (Healthgrades - by specialty incl. Endocrinology, Diabetes & Metabolism): Hospital patient-recommendation rate shown; no endocrinology-specific rating number provided in excerpt
  • Aspirus Rhinelander Hospital (U.S. News): 86% of patients willing to recommend
  • Aspirus providers profile (Katy Anderson, APNP, RD - Endocrinology): 4.8 out of 5

Patients praise

  • Some Aspirus endocrinology providers have high patient ratings and positive commentary (e.g., Katy Anderson: 4.8/5 with many ratings/comments).
  • Hospital-level patient recommendation metrics are relatively positive (e.g., U.S. News: 86% willing to recommend).

Common complaints

  • Some individual reviews for an Aspirus endocrinologist (Dr. John E. Carroll) include complaints about missing diagnoses, unnecessary testing, prescription follow-through, appointment cancellations, and poor follow-up; these align with low ratings on Vitals and low patient-experience scores on U.S. News.
  • Some sources show lack of ratings/reviews for the specific Rhinelander endocrinology practice page on WebMD (0 ratings).

"“Outdated knowledge not in touch with up to date treatments. Will not listen, runs unnecessary tests, doesn’t get prescriptions in on time. Cancels appointments and blames the patient… Doesn’t get back to patient with results. No follow up with treatment.”"

Vitals review text for Dr. John E. Carroll

"“MyAspirus” recent reviews section is present on provider pages, but the excerpted WebMD practice page shows “Rating 0 Ratings.”"

WebMD practice page for Aspirus Endocrinology Clinic Rhinelander (and Aspirus provider pages showing MyAspirus section)

"“She is wonderful. She addressed all my questions, so knowledgeable and makes her patients feel well cared for!!”"

Aspirus providers profile for Katy Anderson, APNP, RD (Endocrinology)

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

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

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