There are currently no approved stem cell therapies for MAC/NTM or Bronchiectasis. There is a lot of promising research underway, including for people with Cystic Fibrosis and a few other conditions, but full clinical studies can take a number of years.

Advertised Stem Cell Clinics are not offering proven, FDA approved therapies for our specific conditions, because none exist at this point. Here is what the American Lung Association has to say about stem cell therapy for lungs at this time:
https://www.lung.org/lung-health-diseases/wellness/public-health-issues-lung-health/stem-cell-therapy
The FDA maintains a current list of approved stem cell therapies:
https://ipscell.com/2025/01/updated-2025-list-of-fda-approved-cell-and-gene-therapies/
Has someone suggested to you that you have stem cell therapy?

To the best of my ability, I researched and did not find any current stem cell studies for people with NTM or Bronchiectasis.