Administration Team

Physicians lead the way to expert care

Group Health is led by physicians. The Executive Council is composed of the chief medical officer, the chief operating officer, the department directors, the PCMH, CPCI and innovation director, as well as five at-large members. Their role is to assess financial and operating performance, investments plans, manpower planning, clinical departments, and implementation of the strategic plan.

The chief medical officer and the chief operating officer lead the day-to-day operations.

These highly accomplished professionals ensure that Group Health provides our patients with the highest quality of care.

Executive Council

T. Tami MD 
Thomas Tami, MD
Chief Medical Officer
Specialties Department Director

Vesta Johns
Vesta Johns
Chief Operating Officer


M. Elaine Billmire MDM. Elaine Billmire MD
Pediatric Department Director

William BuckleyWilliam Buckley, MD
Obstetrics/Gynecology Department Director

Robert HiltzRobert Hiltz, MD

Richard-KallenbergRichard Kallenberg, MD
Internal Medicine Department Director

Paula J. LafranconiPaula Lafranconi, MD
PCMH, CPCI, Innovation Director

Sanjiv Lakhia Sanjiv Lakhia, DO
Musculoskeletal Department Director

Mumma JonathanJonathan Mumma, MD

John NurreJohn Nurre, MD

Tony SchweierTony Schweier

Christine SmithChristine Smith, MD



Senior Leadership Team

Brad Hall
Chief Financial Officer

Ida Combs
Ida Combs
Director of Clinical Services - Primary Care


Amy Hausfeld

Amy Hausfeld
Director of Clinical Services - Specialties 


Beth Berter

Beth Berter
Director of Clinical Services - Musculoskeletal Department


Randy Hammann

Randy Hammann  
Director of Support Services