4.9
51 Ratings with 43 written Reviews

Overview based on verified provider data
Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.
![]() | ![]() | ![]() | ![]() |
| Allison Liefeld Fillar, MD | Dr. Russell Bear, DO, FAAOS | Dr. Peter Jay, MD | Dr. Max Hamaker, MD |
| Orthopedic Surgery | Orthopedic Surgery | Orthopedic Surgery | Orthopedic Surgery |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 17 Years of Experience | |||
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English | Speaks English |
| Baltimore , MD | Hanover , MD | Owings Mills , MD | Hanover , MD |
| Med School: Mechanical Engineering | Med School: Philadelphia College of Osteopathic Medicine Philadelphia, PA | Med School: Yale University School of Medicine New Haven, CT | Med School: University of Maryland |
Current Profile | View Profile | View Profile | View Profile |
Allison Liefeld Fillar holds an active medical license in the state of Maryland.
Medical Doctor with an active medical license in the state of Maryland that expires in 2026.
Completed their residency at Montefiore Medical Center/Albert Einstein College of Medicine (Montefiore) Program.
Graduated from Mechanical Engineering in 2009.
Allison Liefeld Fillar's NPI number is 1285930404.










Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.