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

Individual provider Orthopaedic Surgery Physician · NPI 1245452713

Dr. William Hallier, MD practises Orthopedic Surgery in Cottonwood, Arizona. Qualified in 1998, 28 years ago. Practices with Kingman Healthcare Inc, a 180-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
28
Licensed in
AZ
In the registry since
2007
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

340 S Willard St
Cottonwood, AZ 86326-4126
Phone: (928) 639-6025
Fax: (928) 634-1117
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 7219 North Litchfield Road, Luke A F B, AZ 85309 — (623) 856-7553

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 28017 (AZ)

Record details

NPI number1245452713
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 3, 2007
Last updated in NPPESSeptember 10, 2020
Certification dateSeptember 10, 2020

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Kingman Healthcare Inc — 180 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Hip replacement 1–10 times
Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients136
Services billed 273 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Kingman Regional Medical Center Hospital · Kingman, AZ
  • Kingman Regional Medical Center Home Health Home health agency · Kingman, AZ

Colleagues at Kingman Healthcare Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 180 clinicians in the practice; 12 are shown here.

Other providers in Cottonwood