Colorado Office of Naturopathic Doctor Registration

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The Naturopathic Doctor Advisory Committee is appointed by the Director of Professions and Occupations. It consists of nine members consisting of three naturopathic doctors, three doctors of medicine or osteopathy, one pharmacist, and two public members.

Program Information

Advisory Committee

Zen Mayhugh, Program Director

Office of Naturopathic Doctor Registration
1560 Broadway, Suite 1350
Denver, CO 80202

Phone: 303-894-7800  |  Fax: 303-894-0144  |  Email:

Advisory Committee:

  • Donald Parsons, D.O.
    Professional Member
  • Christopher Unrein, D.O.
    Professional Member
  • Lauri Halmo, M.D.
    Professional Member
  • Kaycie Grigel, N.D.
    Professional Member
  • Caitlin O'Connor, N.D.
    Professional Member
  • Kelly Parcell, N.D.
    Professional Member
  • Monika Nuffer, PHA
    Professional Member
  • Della Marie Aguilera
    Public Member
  • Sarah Vaught
    Public Member
Public Notices

Permanent Rulemaking Hearing - September 16, 2022

The Office of Naturopathic Doctor Registration will hold a Permanent Rulemaking Hearing to allow stakeholders a final opportunity to provide testimony before the Director considers adopting multiple new and revised rules to implement Colorado House Bill 22-1284 (Concerning updates to state surprise billing laws to facilitate the implementation of surprise billing protections, and aligning state law with the federal "No Surprises Act"); Executive Order D 2022-032 (Directing State Agencies to Protect Access to Reproductive Health Care in Colorado); and Executive Order D 2022-034 (Protecting Colorado’s Workforce and Expanding Licensing Opportunities). 


Permanent Rulemaking Hearing - July 15, 2022

The Office of Naturopathic Doctor Registration will hold a Permanent Rulemaking Hearing to allow stakeholders a final opportunity to provide testimony before the Director considers adopting the proposed revisions to Rule 1.10, to implement Colorado Senate Bill 22-116 (Concerning the ability of an individual to obtain an occupational credential through the occupational credential portability program).

Legislative Updates
Meeting Minutes

There are currently no Meeting Minutes