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About

Summary: - Premier HealthNet is a medical practices network in Southwest Ohio, offering primary care and medical specialists, including internal medicine, through a physician network (Premier Physician Network) of 600+ providers across 125+ locations. - Based in Dayton, OH, with two offices listed in Dayton (110 N Main St, Dayton, OH 45402). - About 9.8M–9.8M USD annual revenue, private ownership, ~19 employees listed (likely part of broader Premier Health ecosystem). - Access to internal medicine doctors is part of the Premier Physician Network within Premier HealthNet, focused on comprehensive care across life stages. If you’re specifically seeking an Internal Medicine doctor in Dayton via Premier Health, you can: - Contact Premier HealthNet offices in Dayton at the listed numbers or visit premierhealthnet.com for provider directories. - Look for internal medicine specialists within the Premier Physician Network in Southwest Ohio.

Clinic Type

Internal Medicine

Address

110 N MAIN ST, Dayton, Ohio 45402, us

Phone

513-424-2535

Email

help@luminatehealth.com

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Internal Medicine
  • Primary Care
  • Internal Medicine - Family Practice (as part of groups)

Team

  • Roulay Thammavong, MD — MD

Insurance & Payment

Languages Spoken

  • English

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Premier Health Physician Profile (Dr. Kirk M. Tucker): 4.9/5
  • Premier Health Physician Profile (Dr. David Cha): 4.9/5 (222 ratings, 70 reviews)
  • Premier Health Physician Profile (Dr. James F. Lamb): 4.9/5 (33 ratings, 12 reviews)
  • Premier Health Physician Profile (Dr. Luke McCoy): 4.9/5 (34 ratings, 11 reviews)
  • Premier Health Physician Profile (Dr. Anjana H. Shah): 4.9/5

Patients praise

  • Providers are generally described as kind, thorough, knowledgeable, and attentive
  • Strong focus on clear communication and addressing patient concerns
  • Many patients express high confidence in their specific physicians and primary care providers
  • Professional and respectful clinical staff in many reported experiences

Common complaints

  • Administrative, billing, and scheduling inefficiencies (e.g., redundant paperwork, excessive appointment reminders)
  • Occasional rude or dismissive staff experiences (front desk, nursing)
  • Wait times, both for appointments and during clinical visits
  • Frustration with changes in internal procedures (e.g., no longer drawing blood in-office)
  • Specific complaints regarding billing accuracy and communication with insurance providers

"My care is excellent. The billing system is terrible."

Premier Health Patient Review

"The staff in this office is the most respectful I've ever encountered in a medical setting. In my opinion, Dr. Lamb leads by example and his attitude is much appreciated, at least by this patient."

Premier Health Patient Review

"I downgraded some of the scores at the end because the provider was over an hour late. Once seen, things were great, but my time is valuable too. Being over an hour late is unacceptable."

Premier Health Patient 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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