Our Providers

doctor carl sarnaki

Carl C. Sarnacki M.D.

Dr. Sarnacki established Orion Family Physicians is 1992 and worked as a solo practitioner for five years. 

He obtained his board certification from the American Board of Family Medicine after completing his residency training at William Beaumont Hospital in Troy, MI.  He graduated from the Wayne State University School of Medicine in Detroit, MI, and obtained his undergraduate degree from Marquette University in Wisconsin.

Erik Zuckerberg, M.D.

Dr. Zuckerberg became the second physician at Orion Family Physicians in 1997 after completing his residency training at William Beaumont Hospital in Troy, MI. 

He obtained his board certification from the American Board of Family Medicine, graduated from the Wayne State University School of Medicine in Detroit, MI, and did his undergraduate training at Michigan State University.  He is one of three partners at Orion Family Physicians.

Jennifer Prohow, D.O.

Dr. Prohow is the third partner in Orion Family Physicians.  She joined the practice in 2007 after completing her residency training at Providence Hospital in Southfield, MI. 

She obtained her board certification from the American Osteopathic Board of Family Physicians, and is seeking a second board certification from the American Board of Family Medicine in Nov. 2011.  She obtained her medical degree from the University Of Health Sciences College Of Osteopathic Medicine in Kansas City, MO after completing her undergraduate training at Michigan State University.

Dr. golden

Sandra Golden, M.D.

Dr. Golden joined Orion Family Physicians in 2006. 

She is board certified by the American Board of Family Medicine.  She completed her residence training at Wayne State University / William Beaumont Hospital in Troy, MI after attending the Wayne State University School of Medicine for her medical degree.  She completed her undergraduate training at the University of Michigan.

Dr. Kilaru

Shree Kilaru, D.O., M.P.H.

Dr. Kilaru joined Orion Family Physicians in 2006. 

She is board certified by the American Osteopathic Board of Family Physicians.  She completed her residency training at St. John Oakland Hospital in Warren, MI after earning her medical degree from Michigan State University School of Osteopathic Medicine.  She also has a Masters Degree in Public Health from Columbia University, NY and an undergraduate degree from the University of Michigan.

Dr. Drallos

Melissa Drallos, P.A.-C

Mrs. Drallos was the first physician assistant to join Orion Family Physicians in 2007. 

She obtained her board certification from the NCCPA after passing the Physician Assistant National Certification Exam in 2005.  She completed her Masters of Physician Assistant Studies from Wayne State University, Detroit, MI and a Bachelor of Science degree from the University of Michigan.

P.A. Ledesma

Cheryl Ledesma, FNP-BC

Mrs. Ledesma was the first Family Nurse Practitioner to join Orion Family Physicians in 2013.

She obtained her board certification from the American Nurses Credentialing Center (ANCC) after passing the Family Nurse Practitioner Board exam in 2012. She completed her Masters of Science in Nursing as a Family Nurse practitioner from Oakland University in Rochester, MI. She has been a practicing nurse since 1998.

Dr. Drallos

LIndsay Prusakiewicz, FNP-C

Ms. Prusakewicz obtained her board certification from the American Academy of Nurse Practitioners (AANP) after passing the Family Nurse Practitioner Board Exam in 2013. She completed her Master of Science in Nursing as a Family Nurse Practitioner at Oakland University in Rochester, MI and her Bachelor of Science in Nursing at the University of Michigan in Ann Arbor, MI. Prior to joining Orion Family Physicians, she worked as a Registered Nurse in the Pediatric Intensive Care Unit at Children's Hospital of Michigan in Detroit, MI. She has been a practicing nurse since 2008.

Janelle Nash, P.A.-C

Mrs. Nash obtained her board certification from the NCCPA after passing the Physician Assistant National Certification Exam (PANCE) in November 2014. She completed her Masters of Physician Assistant Studies from Central Michigan University, Mount Pleasant, MI in July 2014 as well as a Bachelor of Sciences degree in May 2011.

Elizabeth Alkatib, P.A.-C

Ms. Alkatib obtained her board certification from the NCCPA after passing the Physician Assistant National Certification Exam in 2015. She completed her Masters of Physician Assistant Studies from Wayne State University in Detroit, MI. She also completed her Bachelor of Science Degree in Nutrition and Food Science from Wayne State University.

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1455 S. Lapeer Rd, Suite 100
Lake Orion, MI 48360
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