CommonSpirit Nephrology Siena | Garden City
Nephrology • Garden City, NY • Since 2019
About
CommonSpirit Health is a large nonprofit health system headquartered in Chicago, IL, formed in 2019 by the merger of Dignity Health and Catholic Health Initiatives. It operates over 700 care sites and 142 hospitals across 21 states (U.S.) and is the nation’s largest Catholic hospital chain and a major nonprofit system by revenue. The organization offers diverse job opportunities and emphasizes diversity and inclusion. If you’re specifically seeking a nephrology-related site in Garden City (Siena/Garden City), this page confirms CommonSpirit’s broad presence and locations in the United States but does not list a nephrology-focused facility in Garden City. For nephrology services in Garden City, you may want to check CommonSpirit health system hospitals near Garden City or search directly for “CommonSpirit nephrology Garden City” or contact their listed main numbers for guidance.
Clinic Type
Nephrology
Address
311 E Spruce St, Garden City, KS 67846
Phone
620-271-3117
—
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
Team
Insurance & Payment
—
Languages Spoken
—
FAQs
What are the specialties covered by CommonSpirit Nephrology Siena?
Specializes in diseases of the kidneys, including acid-base disorders, anemia due to CKD, hematuria, electrolyte abnormalities, fluid retention, kidney injury/disease/failure, kidney stones, nephrotic syndrome, proteinuria, severe hypertension, and vitamin D abnormalities.
Who are the clinicians at CommonSpirit Nephrology Siena?
Mathias Stroemel, DO; Marinda Wehkamp, NP (Nurse Practitioner - Gerontology, Nephrology).
Photos
What Patients Say
Overall sentiment across review platforms: positive
- Healthline/Healthgrades: 5.0 stars (specifically for Dr. Stroemel) (not explicitly stated beyond an average rating)
Patients praise
- knowledgeable and thorough doctors
- clear and detailed communication from providers
- professional and kind staff members
- patients feel cared for and valued
Common complaints
- concerns regarding administrative processes such as billing and scheduling delays
- inconsistent experiences across different departments at the broader CommonSpirit location
"Very knowledgeable, professional and he was truly concerned about me as a patient! Absolutely recommend to anyone with nephrology disease, issues or concerns"
— Patient review via LocalityBiz"my visit is,always very good with doctor stromel. He is always very good and kind in everything about my state 3 kidney disease. Always tells me how I am doing ..."
— Healthgrades patient reviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Shancy Jacob DO | Nephrology - CommonSpirit Health — Jul 8, 2026
- Commonspirit Kansas Inc - Medicare — Jun 11, 2026
- Physician / Nephrology / Kansas / Permanent / Nephrologist Job — Jul 8, 2026
- Full Time Nephrologist Physicians at Direct Jobs - Jooble — Jul 8, 2026
Information sourced from the clinic's website as of July 11, 2026.
More nephrology clinics in Garden City
Summary: Dona Wu, MD is a physician affiliated with Catholic Health, a nonprofit integrated health care system serving Long Island. Catholic Health operates 9 offices across Long Island (including locations in Rockville Centre, Smithtown, Roslyn, Bethpage, and West Islip) and employs about 18,000 people. The system includes hospitals, physician practices, imaging, cancer institutes, ambulatory surgery, rehabilitation, home health, and hospice, with annual revenue around $2.8B. The organization, headquartered in Rockville Centre, has rebranded from Catholic Health Services of Long Island to Catholic Health and maintains a strong presence in Long Island health care. If you’re seeking specific contact details or appointment options for Dona Wu, MD, or the Garden City location, you may want to reach out to Catholic Health’s listed offices or main switchboard.
Your clinic’s marketing team, powered by AI.On-brand ads, SEO, and social campaigns in one place.Generate your first clinic ad for free 
Get more revenue from the patients you already have.Voice and SMS that follow up until lapsed patients are back on the schedule.Book a Clincy call 
Your practice’s fractional recruiting team.Dental-only search, run end to end, with placements guaranteed for a year.Find your next hire Comparing your options?
See other nephrology clinics in Garden City, or search the full directory by insurance, ratings, and more.