Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Stefan J. Chimoskey, MD

Individual provider Family Medicine Physician · NPI 1023102498

Stefan J. Chimoskey, MD practises Sleep Medicine in Boulder, Colorado. Graduated from University of Washington School of Medicine in 1998, 28 years ago. Practices with Intermountain Medical Group Denver LLC, a 567-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado and New Mexico.

Years since qualifying
28
Trained at
University of Washington School of Medicine
Licensed in
CO, NM
In the registry since
2006
Specialties on file
3
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

3601 Arapahoe Ave Unit D180
Boulder, CO 80303-1584
Phone: (720) 845-5858
Fax: (505) 288-3642
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3901 Atrisco Dr Nw, Albuquerque, NM 87120-1627 — (505) 462-7575

Specialties & licences

Sleep Medicine (Family Medicine) Physician (primary) Taxonomy 207QS1201X · Licence 0052058 (CO)
Family Medicine Physician Taxonomy 207Q00000X · Licence 2001156 (NM)
Sleep Medicine (Family Medicine) Physician Taxonomy 207QS1201X · Licence 2001-156 (NM)

Record details

NPI number1023102498
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 3, 2006
Last updated in NPPESJune 12, 2020
Certification dateJune 12, 2020

Medicare enrollment

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

Medicare specialtySLEEP MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Intermountain Medical Group Denver Llc — 567 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients78
Services billed 93 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $702 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $196 4 payments · a meal or drink at a meeting or visit, not a fee
Education $55 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Intermountain Health Lutheran Hospital Hospital · Wheat Ridge, CO
  • Intermountain Health St Vincent Regional Hospital Hospital · Billings, MT

Colleagues at Intermountain Medical Group Denver LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 567 clinicians in the practice; 12 are shown here.

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