Naics index Naics index description
621111 Medical doctors' (MDs, except mental health) offices (e.g., centers, clinics)
621111 Nephrologists' offices (e.g., centers, clinics)
621111 Neurologists' offices (e.g., centers, clinics)
621111 Neuropathologists' offices (e.g., centers, clinics)
621111 Obstetricians' offices (e.g., centers, clinics)
621111 Oncologists' offices (e.g., centers, clinics)
621111 Ophthalmologists' offices (e.g., centers, clinics)
621111 Orthopedic physicians' offices (e.g., centers, clinics)
621111 Orthopedic surgeons' offices (e.g., centers, clinics)
621111 Osteopathic physicians' (except mental health) offices (e.g., centers, clinics)