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

Dr. William J Mayles, MD

Individual provider Anesthesiology Physician · NPI 1922235803

Dr. William J Mayles, MD practises Anesthesiology in Colorado Springs, Colorado. Graduated from University of Colorado School of Medicine, Denver in 2009, 17 years ago. Practices with US Anesthesia Partners of Colorado Inc, a 479-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
17
Trained at
University of Colorado School of Medicine, Denver
Licensed in
CO
In the registry since
2009
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

2222 N Nevada Ave
Colorado Springs, CO 80907-6819
Phone: (719) 776-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 0049734 (CO)

Record details

NPI number1922235803
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 17, 2009
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 2009 (17 years in practice)
Group practice Us Anesthesia Partners Of Colorado Inc — 479 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients249
Services billed 273 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Centura Health-Penrose St Francis Health Services Hospital · Colorado Springs, CO
  • St Francis Hospital - Interquest Hospital · Colorado Springs, CO

Colleagues at US Anesthesia Partners of Colorado Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 479 clinicians in the practice; 12 are shown here.

Other providers in Colorado Springs