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Clinic Type

Primary Care

Address

1325 Research Park Dr, Manhattan, KS 66502

Phone

(785) 537-2651

Email

careers@ascension.org

Opening Hours

Not published — contact the clinic to confirm hours.

Emergency Care

If you are experiencing a life-threatening emergency, call 911 or go directly to the ER.

Services Offered

  • Primary Care
  • Family Medicine
  • Internal Medicine
  • Pediatrics
  • Cardiology
  • Gastroenterology
  • Obstetrics & Gynecology
  • Occupational Therapy
  • Otolaryngology (ENT)
  • Physician Assistants
  • Heart Care
  • Women’s Health
  • Cancer Care
  • Orthopedics
  • Neurosciences
  • Pediatrics Manhattan, KS
  • Primary Care Manhattan, KS
  • Internal Medicine Manhattan, KS
  • Family Medicine Manhattan, KS
  • Cardiology Manhattan, KS

Team

  • Myra B Wilson, PA — PA
  • Steffen T Shamburg, MD — MD
  • Sandra S Killingsworth, MD — MD
  • Karen W Graves, DO — DO
  • Kenna Fischman, MD — MD

Insurance & Payment

Languages Spoken

  • English
  • Spanish
  • Vietnamese

FAQs

What is the contact number for Cotton O'Neil Clinic?

(785) 537-2651

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • US News & World Report (Provider-specific): 4 out of 5 (27 ratings total)
  • Vitals (Provider-specific): 4.0 out of 5 (20 ratings)
  • Birdeye (Weight Management): 4.5 out of 5 (27 reviews)

Patients praise

  • Some providers are described as professional, thorough, and attentive
  • Staff often praised for being friendly and welcoming in specific programs like weight management
  • Positive experiences with effective diagnostic and treatment outcomes for some patients
  • Appreciation for providers with emergency medicine experience and calm demeanor during urgent situations

Common complaints

  • Difficulties with office administration, including prescription refill issues and phone communication delays
  • Complaints regarding perceived staff disorganization or unprofessional behavior
  • Patient concerns about being dismissed or feeling unheard by certain providers
  • Legal allegations of medical negligence in specific past cases

"His office staff is terrible... We made 14 phone calls to check in on an escript. It took 3 1/2 hours to get the prescription to the pharmacy... Prescription refills are also a nightmare!"

Patient review on Vitals

"The staff are all wonderful. However, the automatic text messaging to remind me of appointments is annoying because it's excessive."

Patient review on Birdeye

"Worst doctor a I have ever been to. As a woman, he dismissed every concern I have about my symptoms and health... I have heard similar complaints from other women he has had as patients."

Patient review on Vitals

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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