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Advanced Practice Providers

Home Our Team Advanced Practice Providers

Advanced Practice Providers are a critical part of our team. They help to diagnose and treat your condition and are always in close communication with the physician. In some cases, you’ll see an APP first so we can get you to the right specialist. Rather than wait to get on the schedule of a surgeon, it’s sometimes best to see the APP quickly so he/she can order the tests the surgeon will want to see – thereby helping to get you to the right care, quickly.

These professionals round on patients in the hospital, assist in surgery and see patients in clinic where they do physical examinations, perform minor procedures, including joint injections, apply casts and braces and perform management of acute fractures and dislocations.

Our Advanced Practice Providers have extensive experience with musculoskeletal care and are here to enhance the quality of your care!

  • Madison Koehler

    PA-C

  • Alex T. Krahulik

    PA-C

  • Kaitlyn A. Yoh

    PA-C

  • Kayla A. Gross

    PA-C

Madison Koehler

PA-C

Madison is a graduate of Penn State (Magna Cum Laude), where she earned a Bachelor of Science in Kinesiology. She then earned her Master of Science in Physician Assistant Studies at DeSales in 2022.

A member of the American Academy of Physician Assistants and the Pennsylvania Society of Physician Assistants, Madison joined LOG in January of 2023. She has a special interest in Sports Medicine, and in her free time enjoys going to the beach and playing pickleball with friends.

Alex T. Krahulik

PA-C

Alex is a Cum Laude graduate of Duquesne University, where he graduated with a Bachelor of Science in Health Sciences. He continued his studies at Duquesne, earning his Master of Physician Assistant Studies in August of 2022.


Alex is a member of the American Academy of Physician Assistants and joined LOG in the fall of 2022.

Kaitlyn A. Yoh

PA-C

Kaitlyn is a graduate of Alvernia University, where she graduated Magna Cum Laude with a Bachelor of Science in Athletic Training and a Minor in Biology. She then studied at Marywood University where she earned her Master of Science in Physician Assistant Studies.

Prior to the Physician Assistant program at Marywood, Kaitlyn worked as a Certified Athletic Trainer at an orthopedic practice in Pottstown as well as in a school district in Berks County. She was a member of the women’s basketball team at Alvernia, serving as captain for three of her four years on the team.  

Kaitlyn is a member of the American Academy of Physician Assistants, Pennsylvania Society of Physician Assistants, National Athletic Trainers Association, and the Pennsylvania Athletic Trainers Society.

Kaitlyn works with Dr. Joy Long, one of LOG's Sports Medicine specialists. 

Kayla A. Gross

PA-C

Kayla is a graduate of Penn State University, where she graduated with a Bachelor of Science in Biology. She then studied at Lock Haven University where she earned her Master of Health Science in Physician Assistant Studies.

Prior to the Physician Assistant program at Lock Haven, Kayla worked as a certified nursing assistant. At Penn State, she was a member of their Powerlifting Club and Women’s Ultimate Frisbee team.

Kayla is part of Dr. Oliveri’s spine team in both the clinic and surgery.

  • Erin C. Gauvain

    PA-C

  • Matthew W. Blanke

    PA-C

  • Craig A. Lehmann

    PA-C

  • Julie E. Adams PA-C

Erin C. Gauvain

PA-C

Erin is a graduate of Villanova University, where she graduated Magna Cum Laude with a Bachelor of Arts in English. She completed Arcadia’s Physician Assistant Master’s Program in 2010, where she received her Master of Medical Science. Upon graduating from Arcadia, she worked in orthopedics for five years in White Plains, New York, before returning to Lancaster County in 2015. Before joining LOG in 2022, Erin was a physician assistant at a local general surgery practice.

Erin is a member of the American Academy of Physician Assistants as well as the American Society of Orthopedic Professionals.

You can find Erin in LOG’s Orthopedic Urgent Care Clinic at Granite Run, where she spends time assessing acute injuries and work injuries.

Matthew W. Blanke

PA-C

Matthew is a 2019 graduate of Lock Haven's Master of Health Science program where he received his certification in Physician Assistant Studies. Prior to that, he graduated Summa Cum Laude from Lebanon Valley College where he received his Bachelor of Science in Biology. He was also a member of LVC's men's soccer team, and was honored with the Scholar Athlete Award along with many other leadership awards and scholarships from the college.

Matthew works alongside Dr. Bercik in the clinic, specializing in disorders of the elbow and shoulder.

 

Craig A. Lehmann

PA-C

Craig comes to LOG with 11 years of extensive experience of working with pediatric and adult orthopedic patients. Most recently he was practicing at an orthopedic practice in Massachusetts where he was also responsible for covering local high school football games with on the field orthopedic care. Craig recently served as a clinical instructor at Tufts University School of Medicine.

Medical Training:

  • Graduate of Midwestern University with a Master of Medical Science in Physician Assistant Studies
  • Graduate of Oakland University with a Master of Science with Emphasis on Cardiovascular Rehabilitation
  • Graduate of Depauw University with a Bachelor of Science in Kinesiology & Sports Medicine with Emphasis on Athletic Training
Julie E. Adams PA-C

A Certified Physician Assistant, Julie is a 2012 graduate of Arcadia University’s Physician Assistant program where she received her Master of Medical Science degree in Physician Assistant Studies (and was named to the Graduate Dean’s List). Prior to her studies at Arcadia, she graduated summa cum laude from Lebanon Valley College where she received a Bachelor of Science in Biology. Julie was a member of Phi Alpha Epsilon, the Lebanon Valley College Scholar Society, as well as a member of Beta Beta Beta, the National Biological Honor Society.

Julie has worked as an operating room volunteer assistant at the Good Samaritan Hospital in Lebanon as well as a skilled nursing unit volunteer assistant at Muncy Valley Hospital in Muncy, Pennsylvania.

Board Certified by the National Commission on Certification of Physician Assistants, Julie is a member of the American Academy of Physician Assistants.

  • Leonard A. Berry

    PA-C

  • Adrienne L. Carnahan

    PA-C

  • Kimberly K. McDonald Flood

    PA-C

  • Travis L. Homan

    PA-C

Leonard A. Berry

PA-C

Leonard is a 2010 graduate of Marywood University in Scranton where he received his Master of Science in Physician Assistant Studies as well as a citation in Clinical Excellence. Prior to becoming a physician assistant, Leonard was a member of the Pennsylvania Army National Guard (1992-2002). In 2000, he received a Bachelor of Science degree in Medical Technology from Bloomsburg University. He received his certification in Medical Technology also in 2000 from the Scranton Medical Technology Consortium.

Leonard is certified by the NCCPA (National Commission on Certification of Physician Assistants).

Adrienne L. Carnahan

PA-C

Adrienne is a Certified Physician Assistant and a 2009 graduate of Arcadia University’s Physician Assistant program. Prior to receiving her Master of Medical Science in Physician Assistant Studies, she received a Bachelor of Science in Neuroscience degree with a minor in chemistry from Union College in Schenectady, New York.

Adrienne comes to Lancaster Orthopedic Group after working at Hartford Hospital in Connecticut as an orthopedic physician assistant for three years. She also worked as a mental health worker at The Windham Center Mental Health Services in Bellows Falls, Vermont before becoming a physician assistant.

Board Certified by the National Commission on Certification of Physician Assistants, Adrienne is a member of the American Academy of Physician Assistants.

Kimberly K. McDonald Flood

PA-C

Kimberly is a 2004 graduate of Lebanon Valley College, where she received her Bachelor of Science in Biology. She then went on to work as a laboratory technician at Drs. May-Grant Associates before enrolling at Barry University in Miami, Florida, to complete her physician assistant studies. She graduated in 2010 with a Masters of Clinical Medical Sciences in Physician Assistant Studies and earned a Dean’s Award for top 10 in GPAs.

Upon graduating from her physician assistant program, Kimberly worked as a physician assistant at a family practice in Juno Beach, Florida for 5 years, before deciding to return home to Central Pennsylvania in 2016.

Board Certified by the National Commission on Certification of Physician Assistants, Kimberly is a member of the American Academy of Physician Assistants and is also Certified in Phlebotomy.

Travis L. Homan

PA-C

Travis completed his Physician Assistant studies at Touro College in New York City after receiving a Bachelor of Science in Biology at Juniata College in Huntingdon, PA.

Board Certified by the National Commission on Certification of Physician Assistants, Travis is a member of the American Academy of Physician Assistants as well as the Physician Assistant Education Association.

  • Ranae L. McPhail

    PA-C

  • Brian R. Walters

    PA-C

Ranae L. McPhail

PA-C

Ranae is a 1996 honor graduate of Cowley County Community College (Kansas) where she received an Associate of Science Degree in Pre-Medicine. She then went on to earn a Bachelor of Science Degree in Health Services Organization and Policy as well as a Bachelor of Science as a Physician Assistant from Wichita State University, both in 1999.

She joined Orthopedic Consultants in 2000, which became part of LOG in 2011. Certified by the National Commission on Certification of Physician Assistants (NCCPA), Ranae is a member of the American Academy of Physician Assistants (AAPA) and an associate member of the Pennsylvania Society of Physician Assistants. She is a certified provider of BLS (Basic Life Support) and ACLS (Advanced Cardiac Life Support).

Ranae has developed special interest in osteoarthritis of the knees and hips, osteoporosis and general orthopedics. She works closely with Dr. Renz.

Brian R. Walters

PA-C

Brian received his Bachelor of Science in Physician Assistant Studies from Pennsylvania College of Technology in Williamsport, PA along with a Bachelor of Science in Kinesiology and Athletic Training from Penn State University in University Park, PA.

Brian is Board Certified by the National Commission on Certification of Physician Assistants. Along with being ACLS (Advanced Cardiac Life Support), PALS (Pediatric Advanced Life Support) and BLS (Basic Life Support) certified.

Brian is a retired Major from the Pennsylvania Army National Guard. He was previously a certified and state licensed athletic trainer and has been working alongside Dr. Tuckman on LOG's Foot & Ankle team since 2008.

  • Madison Koehler
    PA-C
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  • Madison Koehler

    PA-C

    Madison is a graduate of Penn State (Magna Cum Laude), where she earned a Bachelor of Science in Kinesiology. She then earned her Master of Science in Physician Assistant Studies at DeSales in 2022.

    A member of the American Academy of Physician Assistants and the Pennsylvania Society of Physician Assistants, Madison joined LOG in January of 2023. She has a special interest in Sports Medicine, and in her free time enjoys going to the beach and playing pickleball with friends.

  • Alex T. Krahulik
    PA-C
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  • Alex T. Krahulik

    PA-C

    Alex is a Cum Laude graduate of Duquesne University, where he graduated with a Bachelor of Science in Health Sciences. He continued his studies at Duquesne, earning his Master of Physician Assistant Studies in August of 2022.


    Alex is a member of the American Academy of Physician Assistants and joined LOG in the fall of 2022.

  • Kaitlyn A. Yoh
    PA-C
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  • Kaitlyn A. Yoh

    PA-C

    Kaitlyn is a graduate of Alvernia University, where she graduated Magna Cum Laude with a Bachelor of Science in Athletic Training and a Minor in Biology. She then studied at Marywood University where she earned her Master of Science in Physician Assistant Studies.

    Prior to the Physician Assistant program at Marywood, Kaitlyn worked as a Certified Athletic Trainer at an orthopedic practice in Pottstown as well as in a school district in Berks County. She was a member of the women’s basketball team at Alvernia, serving as captain for three of her four years on the team.  

    Kaitlyn is a member of the American Academy of Physician Assistants, Pennsylvania Society of Physician Assistants, National Athletic Trainers Association, and the Pennsylvania Athletic Trainers Society.

    Kaitlyn works with Dr. Joy Long, one of LOG's Sports Medicine specialists. 

  • Kayla A. Gross
    PA-C
    arrow-circle-down
  • Kayla A. Gross

    PA-C

    Kayla is a graduate of Penn State University, where she graduated with a Bachelor of Science in Biology. She then studied at Lock Haven University where she earned her Master of Health Science in Physician Assistant Studies.

    Prior to the Physician Assistant program at Lock Haven, Kayla worked as a certified nursing assistant. At Penn State, she was a member of their Powerlifting Club and Women’s Ultimate Frisbee team.

    Kayla is part of Dr. Oliveri’s spine team in both the clinic and surgery.

  • Erin C. Gauvain
    PA-C
    arrow-circle-down
  • Erin C. Gauvain

    PA-C

    Erin is a graduate of Villanova University, where she graduated Magna Cum Laude with a Bachelor of Arts in English. She completed Arcadia’s Physician Assistant Master’s Program in 2010, where she received her Master of Medical Science. Upon graduating from Arcadia, she worked in orthopedics for five years in White Plains, New York, before returning to Lancaster County in 2015. Before joining LOG in 2022, Erin was a physician assistant at a local general surgery practice.

    Erin is a member of the American Academy of Physician Assistants as well as the American Society of Orthopedic Professionals.

    You can find Erin in LOG’s Orthopedic Urgent Care Clinic at Granite Run, where she spends time assessing acute injuries and work injuries.

  • Matthew W. Blanke
    PA-C
    arrow-circle-down
  • Matthew W. Blanke

    PA-C

    Matthew is a 2019 graduate of Lock Haven's Master of Health Science program where he received his certification in Physician Assistant Studies. Prior to that, he graduated Summa Cum Laude from Lebanon Valley College where he received his Bachelor of Science in Biology. He was also a member of LVC's men's soccer team, and was honored with the Scholar Athlete Award along with many other leadership awards and scholarships from the college.

    Matthew works alongside Dr. Bercik in the clinic, specializing in disorders of the elbow and shoulder.

     

  • Craig A. Lehmann
    PA-C
    arrow-circle-down
  • Craig A. Lehmann

    PA-C

    Craig comes to LOG with 11 years of extensive experience of working with pediatric and adult orthopedic patients. Most recently he was practicing at an orthopedic practice in Massachusetts where he was also responsible for covering local high school football games with on the field orthopedic care. Craig recently served as a clinical instructor at Tufts University School of Medicine.

    Medical Training:

    • Graduate of Midwestern University with a Master of Medical Science in Physician Assistant Studies
    • Graduate of Oakland University with a Master of Science with Emphasis on Cardiovascular Rehabilitation
    • Graduate of Depauw University with a Bachelor of Science in Kinesiology & Sports Medicine with Emphasis on Athletic Training
  • Julie E. Adams PA-C
    arrow-circle-down
  • Julie E. Adams PA-C

    A Certified Physician Assistant, Julie is a 2012 graduate of Arcadia University’s Physician Assistant program where she received her Master of Medical Science degree in Physician Assistant Studies (and was named to the Graduate Dean’s List). Prior to her studies at Arcadia, she graduated summa cum laude from Lebanon Valley College where she received a Bachelor of Science in Biology. Julie was a member of Phi Alpha Epsilon, the Lebanon Valley College Scholar Society, as well as a member of Beta Beta Beta, the National Biological Honor Society.

    Julie has worked as an operating room volunteer assistant at the Good Samaritan Hospital in Lebanon as well as a skilled nursing unit volunteer assistant at Muncy Valley Hospital in Muncy, Pennsylvania.

    Board Certified by the National Commission on Certification of Physician Assistants, Julie is a member of the American Academy of Physician Assistants.

  • Leonard A. Berry
    PA-C
    arrow-circle-down
  • Leonard A. Berry

    PA-C

    Leonard is a 2010 graduate of Marywood University in Scranton where he received his Master of Science in Physician Assistant Studies as well as a citation in Clinical Excellence. Prior to becoming a physician assistant, Leonard was a member of the Pennsylvania Army National Guard (1992-2002). In 2000, he received a Bachelor of Science degree in Medical Technology from Bloomsburg University. He received his certification in Medical Technology also in 2000 from the Scranton Medical Technology Consortium.

    Leonard is certified by the NCCPA (National Commission on Certification of Physician Assistants).

  • Adrienne L. Carnahan
    PA-C
    arrow-circle-down
  • Adrienne L. Carnahan

    PA-C

    Adrienne is a Certified Physician Assistant and a 2009 graduate of Arcadia University’s Physician Assistant program. Prior to receiving her Master of Medical Science in Physician Assistant Studies, she received a Bachelor of Science in Neuroscience degree with a minor in chemistry from Union College in Schenectady, New York.

    Adrienne comes to Lancaster Orthopedic Group after working at Hartford Hospital in Connecticut as an orthopedic physician assistant for three years. She also worked as a mental health worker at The Windham Center Mental Health Services in Bellows Falls, Vermont before becoming a physician assistant.

    Board Certified by the National Commission on Certification of Physician Assistants, Adrienne is a member of the American Academy of Physician Assistants.

  • Kimberly K. McDonald Flood
    PA-C
    arrow-circle-down
  • Kimberly K. McDonald Flood

    PA-C

    Kimberly is a 2004 graduate of Lebanon Valley College, where she received her Bachelor of Science in Biology. She then went on to work as a laboratory technician at Drs. May-Grant Associates before enrolling at Barry University in Miami, Florida, to complete her physician assistant studies. She graduated in 2010 with a Masters of Clinical Medical Sciences in Physician Assistant Studies and earned a Dean’s Award for top 10 in GPAs.

    Upon graduating from her physician assistant program, Kimberly worked as a physician assistant at a family practice in Juno Beach, Florida for 5 years, before deciding to return home to Central Pennsylvania in 2016.

    Board Certified by the National Commission on Certification of Physician Assistants, Kimberly is a member of the American Academy of Physician Assistants and is also Certified in Phlebotomy.

  • Travis L. Homan
    PA-C
    arrow-circle-down
  • Travis L. Homan

    PA-C

    Travis completed his Physician Assistant studies at Touro College in New York City after receiving a Bachelor of Science in Biology at Juniata College in Huntingdon, PA.

    Board Certified by the National Commission on Certification of Physician Assistants, Travis is a member of the American Academy of Physician Assistants as well as the Physician Assistant Education Association.

  • Ranae L. McPhail
    PA-C
    arrow-circle-down
  • Ranae L. McPhail

    PA-C

    Ranae is a 1996 honor graduate of Cowley County Community College (Kansas) where she received an Associate of Science Degree in Pre-Medicine. She then went on to earn a Bachelor of Science Degree in Health Services Organization and Policy as well as a Bachelor of Science as a Physician Assistant from Wichita State University, both in 1999.

    She joined Orthopedic Consultants in 2000, which became part of LOG in 2011. Certified by the National Commission on Certification of Physician Assistants (NCCPA), Ranae is a member of the American Academy of Physician Assistants (AAPA) and an associate member of the Pennsylvania Society of Physician Assistants. She is a certified provider of BLS (Basic Life Support) and ACLS (Advanced Cardiac Life Support).

    Ranae has developed special interest in osteoarthritis of the knees and hips, osteoporosis and general orthopedics. She works closely with Dr. Renz.

  • Brian R. Walters
    PA-C
    arrow-circle-down
  • Brian R. Walters

    PA-C

    Brian received his Bachelor of Science in Physician Assistant Studies from Pennsylvania College of Technology in Williamsport, PA along with a Bachelor of Science in Kinesiology and Athletic Training from Penn State University in University Park, PA.

    Brian is Board Certified by the National Commission on Certification of Physician Assistants. Along with being ACLS (Advanced Cardiac Life Support), PALS (Pediatric Advanced Life Support) and BLS (Basic Life Support) certified.

    Brian is a retired Major from the Pennsylvania Army National Guard. He was previously a certified and state licensed athletic trainer and has been working alongside Dr. Tuckman on LOG's Foot & Ankle team since 2008.

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