Dr. Thielen graduated from the University Of Colorado School Of Medicine in 1987. Dr. Thielen works in Hayden, CO and 2 other locations and specializes in Family Medicine, Internal Medicine and Pediatrics. Dr. Thielen is affiliated with Lutheran Medical Center and Yampa Valley Medical Center.


Years Experience: 32

Dr. Thielen's Specialties

Dr. Thielen's Education & Training

Medical School
University Of Colorado School Of Medicine; Graduated 1987


  • Overall Rating

  • Rate
    Explains conditions & treatments

  • Rate
    Takes time to answer my questions

  • Rate
    Provides follow-up as needed

Dr. Thielen's Accepted Insurance

Please verify insurance information directly with your doctor's office as it may change frequently.

Insurance Plans

  • Aetna Choice POS II
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • Anthem CO Blue Priority PPO
  • Anthem CO Bronze Pathway X HMO

Dr. Thielen's Office Information & Appointments

This physician has multiple office locations. See Office Information for details.


Yampa Valley Medical Associates

150 W Jackson Ave
Hayden, CO 81639

Get Directions

Tel: (970) 276-4270

Fax: Not Available

Practice Website: Not Available

Accepting New Patients: No

Medicare Accepted: No

Medicaid Accepted: No

M 8:00 AM - 7:00 PM
T 8:00 AM - 7:00 PM
W 8:00 AM - 7:00 PM
T 8:00 AM - 7:00 PM
F 8:00 AM - 7:00 PM
S 9:00 AM - 3:00 PM
S 9:00 AM - 1:00 PM

Other Physicians in Dr. Thielen's Practice