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Our Team

  • Family Medicine

  • Marcus Weiser, DO

    Marcus Weiser, DO

    Family Medicine

    Location: Onaga

    Position: Physician

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Medical & Surgical Care, Birth Center, Emergency Department, Women's Health

    See My Bio
  • David Allen, MD

    David Allen, MD

    Family Medicine

    Location: Holton

    Position: Physician

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Medical & Surgical Care, Birth Center, Emergency Department, Women's Health

    See My Bio
  • Nancy J. Zidek, MD

    Nancy J. Zidek, MD

    Family Medicine

    Locations: Frankfort, Onaga, Holton

    Position: Physician

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Birth Center, Emergency Department, Women's Health

    See My Bio
  • Melissa Goulart, DO

    Melissa Goulart, DO

    Family Medicine

    Location: St. Marys

    Position: Physician

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Women's Health

  • Nicholas Cahoj, MD

    Nicholas Cahoj, MD

    Family Medicine

    Locations: Frankfort, Westmoreland

    Position: Physician

    Medical Services: Diabetic Care, Family Medicine, Men's Health, Senior Care, Women's Health, Youth Services

    See My Bio
  • John Meriwether, MD

    John Meriwether, MD

    Emergency Department, Family Medicine

    Location: Onaga

    Position: Physician

    Medical Service: Emergency Department

    See My Bio
  • Nancy Bosse, APRN‐C

    Nancy Bosse, APRN‐C

    Family Medicine

    Locations: Onaga, Westmoreland

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Emergency Department, Women's Health

    See My Bio
  • Julia Ingwerson, APRN‐C

    Julia Ingwerson, APRN‐C

    Family Medicine

    Location: St. Marys

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Women's Health

    See My Bio
  • Debra Rezac, APRN‐C

    Debra Rezac, APRN‐C

    Family Medicine

    Location: Onaga

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Emergency Department, Women's Health

    See My Bio
  • Andrew Barnes, APRN‐C

    Andrew Barnes, APRN‐C

    Family Medicine

    Locations: Centralia, Onaga

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Emergency Department, Women's Health

    See My Bio
  • Heather Myers, APRN‐C

    Heather Myers, APRN‐C

    Family Medicine

    Location: Holton

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Women's Health

    See My Bio
  • Kay Cummins, APRN‐C

    Kay Cummins, APRN‐C

    Family Medicine

    Location: St. Marys

    Position: Advanced Practitioner

    Medical Services: Family Medicine, Emergency Department

  • Michele Reisinger, DNP, APRN, FNP-BC, PMHNP-BC

    Michele Reisinger, DNP, APRN, FNP-BC, PMHNP-BC

    Family Medicine

    Locations: Corning, Onaga

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Wound Care, Youth Services, Family Medicine, Emergency Department, Women's Health

    See My Bio
  • Nicole Huey, MSN, APRN, FNP-C

    Nicole Huey, MSN, APRN, FNP-C

    Family Medicine

    Location: Holton

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Women's Health

    See My Bio
  • Annie Crumbaker, PA‐C

    Annie Crumbaker, PA‐C

    Family Medicine

    Location: Frankfort

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Women's Health

    See My Bio
  • Jana Kramer, PA‐C

    Jana Kramer, PA‐C

    Family Medicine

    Location: Holton

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Women's Health

    See My Bio
  • Claire Blumer, PA-C

    Claire Blumer, PA-C

    Family Medicine

    Location: Centralia

    Position: Advanced Practitioner

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Women's Health

    See My Bio
  • Amanda Rempe, APRN

    Amanda Rempe, APRN

    Family Medicine

    Locations: Onaga, Westmoreland

    Position: Advanced Practitioner

    Medical Service: Family Medicine

    See My Bio
  • Taylor Havenstein, APRN-C

    Taylor Havenstein, APRN-C

    Family Medicine

    Location: Onaga

    Position: Advanced Practitioner

    Medical Service: Family Medicine

    See My Bio
  • Merica Surdez, APRN‐C

    Merica Surdez, APRN‐C

    Executive Team, Family Medicine

    Location: Onaga

    Position: Chief of Provider and Clinic Operations

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Emergency Department, Women's Health

    See My Bio
  • Surgery

  • David Cancelada, MD

    David Cancelada, MD

    Surgery

    Locations: Onaga, Holton, St. Marys

    Position: Surgery

    Medical Services: Medical & Surgical Care, Specialty Clinics

    See My Bio
  • Allergist/Immunology

  • Deepti Vellaichamy Manian, MD

    Deepti Vellaichamy Manian, MD

    Allergist/Immunology

    Location: Holton

    Position: Specialty Clinic Provider

    Medical Service: Specialty Clinics

    See My Bio
  • Audiology

  • Gary McKnight, AuD

    Gary McKnight, AuD

    Audiology

    Location: Holton

    Position: Specialty Clinic Provider

    Medical Services: Audiology, Specialty Clinics

    See My Bio
  • Behavioral Health

  • Cassandra (Cassie) Gaddis, LSCSW, CST, CTF-CBT, LIMPH-NE, LMSW-NE

    Cassandra (Cassie) Gaddis, LSCSW, CST, CTF-CBT, LIMPH-NE, LMSW-NE

    Behavioral Health

    Locations: Onaga, St. Marys

    Position: Specialty Clinic Provider

    Medical Services: Mental Health Services, Youth Services, Specialty Clinics

    See My Bio
  • Cardiology

  • Hemant Boolani, MD

    Hemant Boolani, MD

    Cardiology

    Location: St. Marys

    Position: Specialty Clinic Provider

    Medical Services: Cardiac Care, Specialty Clinics

    See My Bio
  • Gilbert Katz, MD

    Gilbert Katz, MD

    Cardiology

    Location: Holton

    Position: Specialty Clinic Provider

    Medical Service: Cardiac Care

    See My Bio
  • Patrick Birkbeck, MD

    Patrick Birkbeck, MD

    Cardiology

    Location: Holton

    Position: Specialty Clinic Provider

    Medical Service: Cardiac Care

    See My Bio
  • Chen Chow, MD

    Chen Chow, MD

    Cardiology

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Services: Cardiac Care, Specialty Clinics

    See My Bio
  • Thomas Doyle, MD

    Thomas Doyle, MD

    Cardiology

    Location: St. Marys

    Position: Specialty Clinic Provider

    Medical Services: Cardiac Care, Specialty Clinics

    See My Bio
  • John Joliff, MD

    John Joliff, MD

    Cardiology

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Services: Cardiac Care, Specialty Clinics

    See My Bio
  • Nilay V. Patel, MD

    Nilay V. Patel, MD

    Cardiology

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Services: Cardiac Care, Specialty Clinics

    See My Bio
  • Ears, Nose & Throat

  • Tyler Grindal, MD

    Tyler Grindal, MD

    Ears, Nose & Throat

    Locations: Onaga, St. Marys

    Position: Specialty Clinic Provider

    Medical Services: Ear, Nose & Throat, Medical & Surgical Care, Specialty Clinics

    See My Bio
  • Emergency Department

  • Rebecca Simon, MD

    Rebecca Simon, MD

    Emergency Department

    Location: Onaga

    Position: Physician

    Medical Service: Emergency Department

  • John Meriwether, MD

    John Meriwether, MD

    Emergency Department, Family Medicine

    Location: Onaga

    Position: Physician

    Medical Service: Emergency Department

    See My Bio
  • Bonnie McKinsey, APRN-C

    Bonnie McKinsey, APRN-C

    Emergency Department

    Location: Onaga

    Position: Advanced Practitioner

    Medical Service: Emergency Department

    See My Bio
  • Sheila Talley, PA‐C

    Sheila Talley, PA‐C

    Emergency Department

    Location: Onaga

    Position: Advanced Practitioner

    Medical Service: Emergency Department

    See My Bio
  • Marcy Evans, PA‐C

    Marcy Evans, PA‐C

    Emergency Department

    Location: Onaga

    Position: Advanced Practitioner

    Medical Service: Emergency Department

  • Neurology

  • Amanda Lamb, APRN

    Amanda Lamb, APRN

    Neurology

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Service: Specialty Clinics

    See My Bio
  • OB/GYN

  • Todd Trobough, MD

    Todd Trobough, MD

    OB/GYN

    Location: Holton

    Position: Specialty Clinic Provider

    Medical Service: Women's Health

    See My Bio
  • Oncology/Hematology

  • Adrian Caracioni, MD

    Adrian Caracioni, MD

    Oncology/Hematology

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Service: Specialty Clinics

    See My Bio
  • Orthopedics

  • Michael McCoy, MD

    Michael McCoy, MD

    Orthopedics

    Location: Holton

    Position: Specialty Clinic Provider

    Medical Service: Orthopedics

    See My Bio
  • Daniel Samani, MD

    Daniel Samani, MD

    Orthopedics

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Services: Orthopedics, Specialty Clinics

  • Podiatry

  • Timothy Gateley, DPM

    Timothy Gateley, DPM

    Podiatry

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Services: Medical & Surgical Care, Podiatry, Specialty Clinics

    See My Bio
  • Dr. Mia Cosentino

    Dr. Mia Cosentino

    Podiatry

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Services: Podiatry, Specialty Clinics

    See My Bio
  • Psychiatry

  • Dagoberto Heredia, MD

    Dagoberto Heredia, MD

    Psychiatry

    Location: Holton

    Positions: Psychiatry, Specialty Clinic Provider

    Medical Services: Mental Health Services, Specialty Clinics

    See My Bio
  • Anesthesia

  • Rebecca Kramer, CRNA

    Rebecca Kramer, CRNA

    Anesthesia

    Locations: Onaga, Holton, St. Marys

    Position: Anesthesia

    Medical Service: Medical & Surgical Care

    See My Bio
  • Scott McCormick, CRNA

    Scott McCormick, CRNA

    Anesthesia

    Locations: Onaga, Holton, St. Marys

    Position: Anesthesia

    Medical Service: Medical & Surgical Care

    See My Bio
  • Sam Jeffers, CRNA

    Sam Jeffers, CRNA

    Anesthesia

    Locations: Onaga, Holton, St. Marys

    Position: Anesthesia

    Medical Service: Medical & Surgical Care

  • Rick Abbott, CRNA

    Rick Abbott, CRNA

    Anesthesia

    Locations: Onaga, Holton, St. Marys

    Position: Anesthesia

    Medical Service: Medical & Surgical Care

  • Urology

  • Amy Meusborn, APRN

    Amy Meusborn, APRN

    Urology

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Service: Specialty Clinics

    See My Bio
  • Apostolos Evangelidis, MD

    Apostolos Evangelidis, MD

    Urology

    Location: Onaga

    Position: Specialty Clinic Provider

    Medical Service: Specialty Clinics

    See My Bio
  • Executive Team

  • Todd Willert

    Todd Willert

    Executive Team

    Location: Onaga

    Position: Chief Executive Officer

  • Lorraine Meyer

    Lorraine Meyer

    Executive Team

    Location: Onaga

    Position: Chief Operating Officer

  • Monica Holthaus

    Monica Holthaus

    Executive Team

    Location: Onaga

    Position: Chief Financial Officer

  • Merica Surdez, APRN‐C

    Merica Surdez, APRN‐C

    Executive Team, Family Medicine

    Location: Onaga

    Position: Chief of Provider and Clinic Operations

    Medical Services: Diabetic Care, Men's Health, Senior Care, Youth Services, Family Medicine, Emergency Department, Women's Health

    See My Bio
  • Mindy Olberding

    Mindy Olberding

    Executive Team

    Location: Onaga

    Position: Chief Nursing Officer

  • Board of Directors/Officers

  • Justin Boswell

    Justin Boswell

    Board of Directors/Officers

    Location: Onaga

    Positions: Board Member, Chairman

  • Karen Harder

    Karen Harder

    Board of Directors/Officers

    Location: Onaga

    Positions: Board Member, Vice Chairman

  • Tim Kite

    Tim Kite

    Board of Directors/Officers

    Location: Onaga

    Positions: Board Member, Secretary

  • Melissa Wegner

    Melissa Wegner

    Board of Directors/Officers

    Location: Onaga

    Positions: Board Member, Treasurer

  • Tracy Ahlquist

    Tracy Ahlquist

    Board of Directors/Officers

    Location: Onaga

    Position: Board Member

  • Alan Fischer

    Alan Fischer

    Board of Directors/Officers

    Location: Onaga

    Position: Board Member

  • Robert Ladner

    Robert Ladner

    Board of Directors/Officers

    Location: Onaga

    Position: Board Member

  • Directors and Key Personnel

  • Andrea Lutz

    Andrea Lutz

    Directors and Key Personnel

    Location: Onaga

    Position: Ancillary Services

  • Michael Bomberger

    Michael Bomberger

    Directors and Key Personnel

    Location: St. Marys

    Position: Business Development and Special Projects

  • Shannon Heim

    Shannon Heim

    Directors and Key Personnel

    Locations: Centralia, Onaga, St. Marys

    Position: Senior Services

    Medical Service: Senior Care

  • Cindy Flentie

    Cindy Flentie

    Directors and Key Personnel

    Location: Onaga

    Position: Human Resources

  • Dominic Freeman

    Dominic Freeman

    Directors and Key Personnel

    Location: Onaga

    Position: Information Technology

  • Pam Holaday

    Pam Holaday

    Directors and Key Personnel

    Location: Onaga

    Position: Communications

    Phone: (785) 889-5133