Stem Cell Therapy and Regenerative Medicine Clinics in Seattle, WA

Washington’s 2018 stem cell law gives you something concrete to check. A license holder performing an unapproved stem cell therapy has to give you a set notice and get a signed consent form that covers the treatment’s FDA status, alternatives and serious risks. At least one clinic below prints that notice on its site. Beyond the paperwork, these four practices split between Seattle and the Eastside, and between clinics focused on cell procedures and a primary care and sports practice.

Seattle and Eastside Practices

Clinic	Where	Physician named	What its site says it uses	Price posted
Ortho Regenerative	Seattle, Bellevue, Auburn	Dr. Jason Attaman	Regenexx marrow and platelet procedures	Not posted
Seattle Sports and Regenerative Medicine	Dexter Ave N	Mark D. Wagner, MD	Own stem cells, PRP	Not posted
Seattle Regenerative Medicine Center	Bellevue	Dr. Lucy Hostetter	Marrow-derived stem cells, PRP	Not posted
Daniel Nelson, MD	Kirkland	Daniel Nelson, MD; Sarah Goble, PA-C	Stem cell therapy from your own body, PRP	Not posted

Ortho Regenerative

Dr. Attaman’s clinic is part of the Regenexx network and offers telehealth consultations. It says it accepts the Regenexx corporate benefits policy, so check whether your employer’s plan has it. Its site displays the Washington notice.

• Address: 801 Pine Street #100, Seattle, WA 98101; also 1600 116th Avenue NE, Suite 204, Bellevue, WA 98004, and 202 N. Division #400, Auburn, WA 98001
• Phone: (425) 440-3555
• Website: https://orthoregenerative.com/
• Physicians: Dr. Jason Attaman
• What the site lists: Regenexx bone marrow concentrate, platelet procedures, spine and joint procedures
• Insurance and price: Accepts the Regenexx corporate benefits policy; fees are not posted on the pages read
• Ask: Does my employer’s plan include the Regenexx benefit, and what would I pay if it does not?

Seattle Sports and Regenerative Medicine

Dr. Wagner’s practice combines primary care with regenerative care, and the site says he has a special interest in joint preservation using your own cells. It gives preparation instructions and says he will call in a prescription before a stem cell treatment. That primary care link could be useful if you want your overall health and medications reviewed together.

• Address: 1000 Dexter Ave N, Suite 320, Seattle, WA 98109
• Phone: 206-620-0333
• Website: https://seattlesportsclinic.com/
• Physicians: Mark D. Wagner, MD, FAAFP
• What the site lists: Stem cell therapy, PRP, primary care, sports medicine
• Insurance and price: Not posted on the pages read
• Ask: Is the cell procedure separate from primary care billing, and what is included in the price?

Seattle Regenerative Medicine Center

This Bellevue center’s physician, Dr. Hostetter, is described as a board-certified anesthesiologist. The site says it uses PRP and bone marrow derived stem cells for musculoskeletal conditions including osteoarthritis and sports injuries.

• Address: 1220 116th Ave NE, Suite 102, Bellevue, WA 98004
• Phone: 425-454-0406
• Website: https://www.seattleregen.com/
• Physicians: Dr. Lucy Hostetter
• What the site lists: PRP, bone marrow stem cell therapy
• Insurance and price: Not posted on the pages read
• Ask: What imaging do you use to guide the injection, and may I see the Washington notice and consent form in advance?

Daniel Nelson, MD

Dr. Nelson is a board-certified, fellowship-trained interventional pain physician in Kirkland, and his site says he uses cells taken from your body for regenerative therapy, alongside conventional pain care. The site lists accepted insurance plans for the practice.

• Address: 12911 120th Ave NE, Suite H-10, Kirkland, WA 98034
• Phone: 425-823-4000
• Website: https://www.danielnelsonmd.com/
• Physicians: Daniel Nelson, MD; Sarah Goble, PA-C
• What the site lists: Stem cell therapy, PRP, interventional pain procedures
• Insurance and price: The practice lists network insurances; regenerative fees are not posted on the pages read
• Ask: What evidence applies to my condition, and is the physician or the PA giving the injection?

What Washington’s Law Requires

RCW 18.130.420 says a license holder performing a stem cell therapy that is not FDA approved must, before the treatment, give the patient a written notice beginning “THIS NOTICE MUST BE PROVIDED TO YOU UNDER WASHINGTON LAW.” The same notice must be displayed at the entrance and in a patient area and used in advertising. The patient also signs a consent form covering the treatment’s nature and FDA status, anticipated results, recognized alternatives, and serious risks. A provider with an FDA investigational new drug or device approval, or one working on behalf of certain certified institutions, is exempt. Violating the section is unprofessional conduct.

So if you do not see the notice or receive the form, ask which exemption applies, and if you have a complaint, the Washington Medical Commission handles physicians.

FDA and the Clinical Evidence

The state’s notice lines up with FDA’s position. FDA’s consumer notice says regenerative therapies have not been approved for any orthopedic condition, whether the cells are yours or someone else’s. Its guidance keeps marrow outside its tissue rules only when minimally manipulated and used for its normal function, and treats PRP as a blood product.

A Nature Medicine trial randomized 480 people with knee osteoarthritis (440 analyzed) and found that marrow, fat and cord tissue cells did no better than cortisone at one year. The American College of Rheumatology’s 2026 recommendations strongly recommend against PRP and stem cell injections for knee and hip osteoarthritis. The American Academy of Orthopaedic Surgeons’ patient site says stem cell treatment is “often not covered by insurance due to limited evidence,” so ask for a written estimate.

Sites were read in November 2026, and we recommend confirming details directly with each office. A clinic’s presence here is not a judgment of quality and the order means nothing, and only your own physician can advise on your care. FDA has received reports of blindness, tumors and infections from unapproved regenerative products.