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

William Bennett Ennen, MD

Individual provider Anesthesiology Physician · NPI 1770743403

William Bennett Ennen, MD practises Anesthesiology in Murray, Utah. Graduated from University of Chicago, Pritzker School of Medicine in 2007, 19 years ago. Practices with Mountain West Anesthesia LLC, a 265-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Utah.

Years since qualifying
19
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
CA, UT
In the registry since
2008
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

5121 S Cottonwood St
Murray, UT 84107
Phone: (801) 507-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5121 S Cottonwood St, Murray, UT 84107 — (801) 507-7000

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 11238688-1205 (UT)
Anesthesiology Physician Taxonomy 207L00000X · Licence A104930 (CA)

Record details

NPI number1770743403
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2008
Last updated in NPPESJune 22, 2019

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Mountain West Anesthesia Llc — 265 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 patients131
Services billed 238 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Food and Beverage $62 3 payments · a meal or drink at a meeting or visit, 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.

Colleagues at Mountain West Anesthesia LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 265 clinicians in the practice; 12 are shown here.

Other providers in Murray