When filling out credentialing forms, resist listing multiple taxonomy codes to show all your specialties. It may seem logical, but it often backfires. Insurers process codes, not logic, and multiple codes can lead to issues like higher copays, misrouted claims, or denials. For example, a family doctor adding Sports Medicine saw patients charged specialist copays for routine visits, and a nurse practitioner with Psychiatry and Family Practice codes had claims denied under mental health benefits.
Your Type 1 NPI is singular—you can’t split specialties. Multiple codes don’t boost visibility; patients find you through websites, referrals, or marketing, not taxonomies. Payors control directories, and extra codes often cause headaches, not solutions. Stick with one primary specialty (e.g., Family Practice) and promote additional services through marketing. Multiple taxonomies lead to denials, frustrated patients, and extra work. Keep it simple—one taxonomy saves time, money, and stress.
Keep your patients and practice healthy!
Thank you to Don Self & Associates for bringing this to our attention.


