Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Jillian J Nickelsen, MD

Individual provider Internal Medicine Physician · NPI 1265406615

Jillian J Nickelsen, MD is a Hospitalist in Durango, Colorado. Graduated from University of Utah School of Medicine in 1995, 31 years ago. Practices with Catholic Health Initiatives Colorado, a 1,266-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
31
Trained at
University of Utah School of Medicine
Licensed in
CO
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1010 Three Springs Blvd
Durango, CO 81301-8296
Phone: (970) 247-4311
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence DR.0037082 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0037082 (CO)

Record details

NPI number1265406615
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 14, 2006
Last updated in NPPESFebruary 4, 2026
Certification dateFebruary 4, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolUNIVERSITY OF UTAH SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Catholic Health Initiatives Colorado — 1266 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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