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About

INTEGRIS Health is Oklahoma’s largest Oklahoma‑owned health system and a major private employer, offering a broad network of hospitals, clinics, and specialty services across the state. While INTEGRIS Health has a presence in multiple locations and departments, there is no specific mention of a Duncan, OK cardiology clinic on the provided page. If you’re seeking a Cardiology Clinic in Duncan, OK under INTEGRIS Health, you may want to: - Check INTEGRIS Health Duncan or INTEGRIS Heart & Vascular in nearby Oklahoma City or Enid for cardio services. - Use the INTEGRIS Health patient portal to schedule appointments, view records, and contact cardiology departments. - Contact INTEGRIS Duncan directly or visit the main INTEGRIS Health sites for the most accurate location, availability, and provider details.

Clinic Type

Cardiology

Address

1312 Harville Road Duncan, OK 73533

Phone

405-947-3341

Email

careers@integrishealth.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Cardiology
  • Interventional Cardiology

Technology & Equipment

  • Interventional Cardiology
  • Cardiovascular care

Team

  • R. Casey Sullivan, M.D. — M.D.
  • Richard Lane, M.D. — M.D.
  • Zeeshan Khan, M.D. — M.D.
  • Ronald Woodson, M.D. — M.D.

Insurance & Payment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Birdeye (aggregated): 4.8 out of 5 stars (aggregated for Cardiovascular Physicians) (773 reviews)
  • INTEGRIS Health (individual provider): 4.9 out of 5 stars (individual providers) (2,195 ratings)

Patients praise

  • Physicians perceived as caring, thorough, and attentive
  • Staff praised for being helpful and responsive to questions
  • High overall satisfaction ratings for many individual providers within the network

Common complaints

  • Long wait times in emergency departments at various INTEGRIS locations
  • Concerns regarding billing, insurance processing, and financial transparency
  • Occasional reports of perceived dismissive or rude communication from staff

"My cardiologist, Dr Kastigher is a very caring man and is always very thorough. His staff is also the best. Always ready to answer questions and help you to feel better."

Birdeye Review

"The doctor was very rude and condescending to me and family."

Yelp Review of INTEGRIS brand

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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Duncan, OK·Cardiology

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VerifiedOnline bookingSince 2002
Duncan, OK·Cardiology

Pavilion Cardiology Services at DRH Health Duncan - What it is: Cardiology services offered by Duncan Regional Health (DRH Health), a nonprofit community hospital system based in Duncan, Oklahoma. - Focus areas likely included under Pavilion Cardiology: comprehensive heart care and diagnostic services supported by a facility/clinic within the Duncan region (consistent with DRH Health’s scope of services across cardiovascular, imaging, and general medical care). - Context: DRH Health operates as a private, non-profit hospital system serving Stephens and Jefferson counties, with a full range of medical specialties and an emphasis on compassionate, community-focused care. - Contact/where: DRH Health is headquartered in Duncan, OK; main contact numbers include local lines such as (580) 252-5300 and related numbers, with general inquiries at info@duncanregional.com. If you need specifics (name of the cardiology physicians, exact services offered under Pavilion Cardiology, clinic hours, or appointment booking), I can look up the current details or guide you to the exact page on duncanregional.com.

VerifiedOnline bookingSince 1977

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