CONTACT US. 443.808.1808

If you have joint or spine pain, consider Regenexx® non-surgical treatment options to help reduce pain, improve function, & get you back to the activities you love.

Regenexx® Procedures have helped thousands of patients improve their quality of life, return to the activities they enjoy, and avoid the need for surgery or joint replacement.*

  • Regenexx® May Help Reduce Pain & Improve Function
  • 100% Focused on Orthopedic Conditions.
  • Backed by Research & Published Patient Outcome Data.
  • Top Musculoskeletal Specialists With Advanced Training.
  • Precise Injections Using Advanced Imaging Guidance.

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Life's Too Short To Live It In Pain. We Can Help.

If you’re suffering from pain related to arthritis, joint injury, spine pain or other degenerative condition, you’re not alone. We’ve helped thousands of patients avoid surgery and return to the activities they love.

Regenexx Procedures are the trusted alternative to surgery. To speak to a Regenexx Specialist and learn more, contact us at the number below. We’ll help answer any questions you have and help schedule an evaluation if you need assistance.

Call 443.808.1808

Industry-Leading Musculoskeletal Specialists and Research - Focused on Results

Regenexx Physicians represent a very selective, highly-skilled, interventional orthopedics network that is 100% focused on orthopedic conditions. All Regenexx physicians are musculoskeletal experts with extensive training and experience in the diagnosis and treatment of musculoskeletal conditions, as well as complex, image-guided injections of your body’s own healing agents to treat orthopedic issues. Regenexx patient outcomes are tracked in a registry and with that information, we provide transparent outcome data for those who may be considering this treatment option. Our top priority is to produce the best possible outcomes for our patients.


Patient Results

Regenexx maintains an active patient registry that tracks patients’ progress or side effects, post-procedure. Our outcomes database contains records on tens of thousands of Regenexx procedures performed by physicians in our network.

Below, you can explore the outcomes database and see the number of currently tracked procedures as well as patient-reported results.

Select a body area to view outcome data:

Regenexx Procedures - Commonly Treated Orthopedic Conditions

  • Knee arthritis, meniscus tears, ACL tears, other injuries
  • Hip arthritis or labral tear
  • Shoulder rotator cuff tear or arthritis
  • Back or neck pain due to herniated or degenerated discs
  • Ankle arthritis, ligament sprain or tear
  • Plantar fasciitis
  • Tennis or golfer’s elbow
  • Texting thumb or thumb arthritis, Carpal tunnel
  • And many more common musculoskeletal conditions that cause pain


Detailed Evaluations and Diagnostics

Correct diagnosis takes time. Regenexx physicians spend an average of an hour with new patients evaluating every aspect of their injuries and developing a comprehensive treatment plan that addresses not only the site of pain but its underlying causes.

Patients receive a candidacy grade that rates the likelihood that a Regenexx procedure can help them.

Regenexx Benefits:

  • Reduced pain
  • Improved joint or spine function
  • Most individuals do not experience extensive downtime
  • Minimal time off from work or activity
  • Avoid or prolong the need for surgery or joint replacement
  • Minimal use of mobility tools (crutches, etc.)
  • Minimal disruption of regular routine

Clinic Locations


166 Defense Highway
Annapolis, MD 21401

All Star Pain Management and Regenerative Medicine Doctors

Dr. Zamfirov, also known as Dr. Zed, was born and raised in Bulgaria. He played soccer professionally and he was selected to play for the Bulgarian Junior National Team. Early in his sports career he decided to become a physician for athletes and to treat their sports injuries. He received his MD degree from the Plovdiv Medical University in 1987. He then completed his Orthopedic Surgery Residency and specialized in sports trauma and knee surgery. For over eight years he served as a physician of the Bulgarian Olympic Canoe team, several professional soccer teams in Bulgarian soccer division “A”, and as a consulting physician of the Bulgarian National Soccer team. During his orthopedic practice in Bulgaria Dr. Zed has treated and operated on many internationally known athletes, Olympic and World champions.

In 2000 he and his family moved to the US. Here, he completed his Physical Medicine and Rehabilitation Residency at Georgetown University/ National Rehabilitation Hospital in Washington, DC where he received extensive training in the field of interventional pain management. Since 2007 Dr. Zed has been providing comprehensive care for thousands of patients in his offices in Maryland. 

Dr Zamfirov is the founder of All Star Pain Management and Regenerative Medicine which opened its doors on February 1st, 2017. Dr Zed was a pioneer in providing regenerative medicine in Maryland and has gone on to become a Regenexx Physician to offer his patients research based cutting edge treatment in Regenerative Orthopedics. Dr. Zed is a member of the medical staff at Baltimore Washington Medical Center and Anne Arundel Medical Center.

His areas of special interests include regenerative medicine for orthopedic conditions, fluoroscopically guided spinal injections, non-operative spine care, pain management, sports medicine, neuromodulation.

He still plays soccer in an indoor league at Howard County. He also loves fishing and skiing.

Areas treated: Hip, Knee, Shoulder

We do not sell, or share your information to third party vendors. By submitting the form you agree that you’ve read and consent to our Privacy Policy. We may use email, phone, or other electronic means to communicate information about Regenexx. We will provide information to help you decide whether you want to schedule an evaluation with a Regenexx Physician. Insurance typically covers evaluations and diagnostic testing (if recommended). Most insurance plans currently do not cover Regenexx Procedures.

*DISCLAIMER: Like all medical procedures, Regenexx® Procedures have a success and failure rate. Patient reviews and testimonials on this site should not be interpreted as a statement on the effectiveness of our treatments for anyone else. Providers listed on the Regenexx website are for informational purposes only and are not a recommendation from Regenexx for a specific provider or a guarantee of the outcome of any treatment you receive.