Our Locations

Our Physicians

Jeffrey VanGelderen, MD FAAP

Robert Thill, MD FAAP

Additional Providers

Donna Hammond, PPCNP-BC

Education
  • Delta College
  • University of Michigan – Flint
  • Wayne State University
Licensure and Certification
  • Michigan Registered Nurse
  • Michigan Nurse Practitioner Specialty
  • American Nurses Credentialing Center

Memberships, Offices, & Committee Appointments
  • American Academy of Nurse Practitioners
  • National Association of Pediatric Nurse Practitioners
  • Sigma Theta Tau International Honor Society of Nursing

​Liza Zulauf, FNP-BC

Education
  • Saginaw Valley State University​
Licensure and Certification
  • Michigan Registered Nurse
  • Michigan Nurse Practitioner Specialty
  • American Nurses Credentialing Center

​Erin Sobek, CPNP-AC/PC

Education
  • Saginaw Valley State University
  • University of Alabama at Birmingham
Licensure and Certification
  • Certified Nurse Practitioner/Pediatric Nurse Practitioner 
  • Multistate Registered Nurse
  • ACLS
  • PALS​

Care Management & Behavioral Health

Laurisa Cummings, LMSW (Manager)

Education
  • Saginaw Valley State University
  • Michigan State University
Licensure
Licensed Masters of Social Work

Angela Haas, LMSW, CAADC, CBIS

Education
  • Lake Superior State University
  • Michigan State University
Licensure and Certification
  • Licensed Masters of Social Work
  • Certified Advanced Alcohol and Drug Counselor
  • ​Certified Brain Injury Specialist

Katie LaFleur, LMSW

Education
  • Central Michigan University
  • Michigan State University
Licensure
Licensed Masters of Social Work

Rachel Keyes, LMSW, DP-C

Education
  • Saginaw Valley State University
  • Michigan State University
Licensure and Certification
  • Licensed Masters of Social Work
  • CAADC Development Plan 

Other Departments

Kelli - Manager
Amy L
Janae
Meghan
Amy K - Manager
Bobbi Jo
​Brandi
​Heather
​Josh
Natalie
​Ryan
Tricia 
​Danielle
Falicia
​Jared
Jennifer
Julie
Noah
​Rachael
Tricia