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About

Mount Carmel Saint Ann’s is a small hospital unit within Mount Carmel Health System based in Westerville, Ohio. It focuses on patient-centered care and key services include emergency care, Medicaid re-enrollment assistance, and COVID-19 vaccination. The Westerville campus locations are at 500 S Cleveland Ave and 495 Cooper Rd #120 in Westerville, OH 43081. The facility is part of Mount Carmel Health System, which operates across Columbus, Ohio, and surrounding communities. Current workforce for the Saint Ann’s unit is 15 employees.

Clinic Type

Primary Care

Address

495 Cooper Rd Ste 311 Westerville, OH 43081

Phone

614-627-1490

Email

communitybenefit@mchs.com

Opening Hours

8:00am - 4:30pm

Services Offered

  • Adolescent Care
  • Behavioral Health
  • Diabetes
  • Geriatrics
  • Men's Health
  • Newborn & Pediatrics
  • Nutrition
  • Preventive Health
  • Women's Health
  • Sports Medicine

Team

  • Robert William Horner, DO — DO Internal Medicine
  • Thomas Joseph Hurm, DO — DO Family Medicine
  • Melissa Ann Dine, DO — DO Family Medicine
  • Jennifer Marie Hemmelgarn, NP — NP Nurse Practitioner
  • Tenneh Naomi Snell, NP — NP Nurse Practitioner

Insurance & Payment

Languages Spoken

  • English
  • Vietnamese

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Official Mount Carmel Health System website: 4.9/5 (based on specific providers)
  • Birdeye: 3.4/5 (39 reviews)

Patients praise

  • Many individual physicians and nurse practitioners receive high ratings (often 4.9/5)
  • Appreciation for thorough, personable, and kind medical providers
  • Helpful and friendly office staff in many instances
  • Efficient and fast lab services reported by some patients
  • Availability of modern tools like an online patient portal for appointments and messaging

Common complaints

  • Concerns regarding professionalism and attitude of some providers
  • Complaints about feeling dismissed or patronized by medical staff
  • Frustrations with billing and insurance issues, including network status confusion
  • Reports of long wait times
  • Critiques of office management, including facility cleanliness and bathroom access policies

"A true medical professional would have made appo..."

Yelp/Apple Maps user review

"The front desk staff is always very polite and welcoming and the office is always clean."

Loc8NearMe user review

"I would just like to say Dr.Rogan (Rachel) has been The only doctor that has ever listened to me has been the only doctor that’s never gaslit me and has been the only doctor that has ever taken the time."

Birdeye user review

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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