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Clinic Type

Primary Care

Address

130 S Main St, Sparta, TN 38583

Phone

(931) 837-6963

Email

careers@ascension.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

Team

  • Robert B Knowles, MD — Primary Care Doctor
  • Ryan T Hunley, DO — Primary Care Doctor
  • Mary L Collins, ACNP-BC, ACNP-BC — Advanced Practice Clinician
  • Ty T Webb, MD — Primary Care Doctor
  • William B Dycus, FNP-C, FNP-C — Nurse Practitioner
  • Mary Brooke T Wyatt, PA-C, PA-C — Physician Assistant
  • Sharon D Hampton, DO, DO — Primary Care Doctor
  • Chad A Griffin, MD, MD — Primary Care Doctor

Insurance & Payment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Birdeye: 3.4/5 stars (72 reviews)

Patients praise

  • High quality score based on CMS MIPS data for associated Saint Thomas Medical Partners providers
  • Comprehensive services including family medicine and chronic disease management

Common complaints

  • Difficulty scheduling appointments
  • Long wait times on hold when calling the office
  • Concerns regarding communication with staff and physicians

"Was put on hold twice for 10 minutes each time and I hung up. Being put on hold merely to leave a message for my GP’ or nurse is unacceptable and dangerous."

Birdeye review for Crossville Medical Group

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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Crossville Medical Group is part of Covenant Health, a nonprofit, Knoxville-based integrated health system serving a 25-county region in Tennessee. Covenant Health operates more than 80 affiliated practices and hospital facilities with a focus on patient care, outpatient services, home care, and behavioral health. The system employs over 11,000 people and handles 2+ million patient encounters annually, supported by a revenue base around $1.6B. Covenant Health is nonprofit, private ownership, founded in 1997, and recognized as a strong employer by multiple outlets. For Crossville specifically, Covenant Health operates within its broader network of hospitals and clinics, delivering primary and specialty care through affiliated practices. If you’re seeking Crossville Medical Group details (providers, services, appointment scheduling) within Covenant Health, you’ll find it under Covenant Health’s affiliated medical practices and Crossville service lines.

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