Our Medical Team

We are proud to welcome the following physicians to the Grand Haven Center team.

Click the clinical services on the left to view information about the Grand Haven Center’s medical team for that service:

Internal Medicine

Thomas Alguire, MD

Thomas Alguire, MD, is a physician board certified in internal medicine and hospice and palliative care. Dr. Alguire earned his medical degree from Northwestern University Medical School in Chicago. He completed his internal medicine residency at Butterworth Hospital in Grand Rapids, Michigan.

Dr. Alguire’s clinical interests include hospice and palliative care.

Lauren Buckles, DO, FACOI, is a board certified general internist excited to serve the lakeshore. She grew up in Grand Blanc, MI, went to medical school at MSUCOM in East Lansing and completed her residency training in Wyoming, MI. She worked as a hospitalist prior to moving to Missouri, then Minnesota, both for outpatient clinic positions in primary care. This experience has brought her a wide array of opportunity to care for a board spectrum of patients and medical conditions. She takes great joy in meeting each patient in his or her place of need and individualizing a treatment and care plan that meets a patient’s goals. Outside of work, she enjoys playing the piano, enjoying the beauty of the lake, and spending time with her husband and two daughters, ages four and six.

Dr. Buckles will be joining the Health Pointe team at the end of February 2021.

*Dr. Buckles is accepting new patients.

Peter Furey, MD, is a board certified internal medicine physician. He earned his medical degree from Northwestern University Feinberg School of Medicine. He completed his residence at the Medical College of Wisconsin Affiliate Hospitals. Dr. Furey’s clinical interests include adult medicine, anxiety, heart disease, hypertension, lipids and prevention medicine.


Tricia O’Neal, NP

Tricia O’Neal, NPis a certified nurse practitioner. Tricia earned her nursing diploma from Bronson School of Nursing. She earned her master’s degree in nursing from Michigan State University College of Nursing in East Lansing.


Joseph Ortiz, MD

Joseph Ortiz, MD, is a board-certified internal medicine physician. Dr. Ortiz earned his medical degree at De La Salle University College of Medicine in the Philippines. He completed his internal medicine residency through Grand Rapids Medical Education Partners in affiliation with Michigan State University College of Human Medicine in Grand Rapids, Michigan. Dr Ortiz’ clinical interests include chronic disease management, complex medical issues and preventative health.


Hillary Ottenbaker, NP, — Hillary Ottenbaker is a certified nurse practitioner. Hillary lived in Grand Haven for most of her childhood and graduated from Grand Haven High School before going off to Ferris State University for her Bachelors of Science in Nursing. She worked and lived in Grand Rapids as a Cardiovascular Registered Nurse while going to Michigan State University to receive her degree for Family Nurse Practitioner (FNP). Hillary is married and has three rescue dogs (Doberman, Pitbull and a Corgi/Australian Shepard mix). She enjoys catching up on the various Netflix/Hulu/HBO series with the company of her friends. Her and her husband are also trying the various cuisines that West Michigan has to offer and are always up to try new places. Hillary is very excited to continue serving the West Michigan and Grand Haven area.

Carrie Roberson, PA-C

Carrie Roberson, PA-C, is a certified physician assistant. She earned her bachelor’s degree in biomedical science and her master’s degree in physician assistant studies from Grand Valley State University in Allendale, Michigan. Carrie is a member of the American Academy of Physician Assistants and the Michigan Academy of Physician Assistants.

internal medicine doctor

Logan Walker, DO, — Logan Walker, DO, is a board-certified internal medicine physician. Dr. Walker earned his medical degree from Des Moines University in Des Moines, Iowa. Following this, he completed his residency in Internal Medicine at Mercy One Medical Center also in Des Moines, Iowa. After training, Dr. Walker worked for two years in outpatient internal medicine for Mercy One in Urbandale, Iowa caring for a wide-diversity of patients and medical conditions alike. His clinical interests are broad as he enjoys working within all facets of internal medicine. Dr. Walker also practices with a strong emphasis on preventative medicine and education as well as enjoys developing personable relationships with all of this patients. He has strong connections to Michigan through his family and his personal interests that include Michigan State Football (his parents are alumni, Go Green!), pickleball, movies, computers and technology, the outdoors and enjoying time with his wife, son and dog.

Dr. Walker will be joining the Health Pointe team at the end of January 2021.

*Dr. Walker is accepting new patients.