Summary

Dr. Stephen Sizer is an orthopedic surgeon who brings 14 years of experience to his practice. He earned his Doctor of Osteopathy degree from Philadelphia College of Osteopathic Medicine, where he developed expertise in musculoskeletal medicine and patient-centered care. Dr. Sizer is fluent in both Spanish and English, allowing him to serve diverse patient communities.

Dr. Sizer practices at Bryn Mawr Hospital, Lankenau Medical Center, and Virtua Marlton Hospital, with office locations in Bryn Mawr and Malvern, Pennsylvania. He specializes in treating joint pain and knee problems, helping patients find relief from osteoarthritis symptoms. His approach includes physical therapy and strength training to help patients regain mobility and function. Patients consistently rate Dr. Sizer highly, giving him an average rating of 5.0 stars for his compassionate care and clinical expertise.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 14 years of experience
  • 14 insurance plans accepted
  • speaks Spanish, English
  • Philadelphia College Of Osteopathic Medicine
  • 5 written reviews
  • 3 specialties
  • 16 areas of expertise
  • 3 hospital affiliations
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Stephen Sizer has 2 locations

Rothman Orthopaedics

825 Old Lancaster RdBryn Mawr, PA 19010
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Rothman Orthopaedics

650 Carnegie BlvdMalvern, PA 19355
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

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Stephen Sizer, DO
Dr. Adam Santoro, DO
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Stephen Sizer, DODr. Adam Santoro, DOSamuel Mease, MDDr. Joseph Mesa, MD
Orthopedic SurgeryOrthopedic SurgeryOrthopedic SurgeryOrthopedic Surgery
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.9 
4.2 
14 Years of Experience 32 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English Speaks English Speaks Spanish, English
Bryn Mawr , PAWilmington , DENewark , DEWilmington , DE
Med School: Philadelphia College Of Osteopathic Medicine Med School: Philadelphia College Of Osteopathic Medicine Med School: New York Medical College, Valhalla, NY Med School: Jefferson Medical College
Current Profile
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Insurance Plans Accepted by Stephen Sizer

  • Accepts Medicare
  • Aetna
  • Berkshire
  • Cigna
  • Horizon Blue Cross
  • Humana
  • Idependence Blue Cross
  • Loomis
  • Medicare
  • NYSHIP
  • Tricare
  • UHC
  • United
  • UPMC
  • VA

Medical Specialties

Stephen Sizer has the following 3 specialties

Specialty Expertise

Stephen Sizer has the following 16 areas of expertise

  • Arthroscopy
  • Bone Fracture
  • Carpal Tunnel Syndrome
  • General Orthopedics
  • Herniated Disc
  • Hip Osteoarthritis
  • Hip Surgery
  • Joint Pain/Swelling
  • Joint Replacement
  • Knee Osteoarthritis
  • Laminectomy
  • Orthopedic Surgeon
  • Osteoarthritis
  • Scoliosis
  • Sports Medicine
  • Surgery

Certifications, License, & Education

14 Years Experience

Stephen Sizer holds an active medical license in the states of Pennsylvania and New Jersey.

Medical License

Doctor Of Osteopathy with an active medical license in the state of Pennsylvania that expires in 2026 and an active medical license in the state of New Jersey that expires in 2027.

Education & Training

Medical School

Graduated from Philadelphia College Of Osteopathic Medicine in 2012.

NPI Number

Stephen Sizer's NPI number is 1023377751.

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Frequently Asked Questions

How can I make an appointment with Stephen Sizer?
You can find contact information for Stephen Sizer here on Vitals.
Is Stephen Sizer accepting new patients?
Stephen Sizer is accepting new patients on Vitals. View Stephen Sizer's profile on Vitals to make an appointment.
Does Stephen Sizer accept my insurance?
You can see the insurance plans that Stephen Sizer accepts on their Vitals profile.
Which hospitals is Stephen Sizer affiliated with?
Stephen Sizer is affiliated with Bryn Mawr Hospital, Lankenau Medical Center, and Virtua Marlton Hospital.
Where is Stephen Sizer's office located?
Stephen Sizer's office is located at 825 Old Lancaster Rd, Bryn Mawr, PA, 19010.

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