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

William Alan Marchio

Individual provider Anesthesiology Physician · NPI 1053384578

William Alan Marchio practises Anesthesiology in Las Vegas, Nevada. Graduated from Un of California, Irvine, College of Medicine in 1983, 43 years ago. Practices with Anesthesiology Associates of Tallahassee Inc, a 132-clinician group and accepts Medicare assignment. Licensed in Nevada.

Years since qualifying
43
Trained at
Un of California, Irvine, College of Medicine
Licensed in
NV
In the registry since
2006
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Practice location Address checks out

2450 W Charleston
Las Vegas, NV 89102 Not confirmed with CMS for 18 years — call before visiting
Phone: (702) 877-8660
Fax: (702) 258-1322
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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 9530 (NV)

Record details

NPI number1053384578
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 8, 2006
Last updated in NPPESFebruary 15, 2008

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUN OF CALIFORNIA, IRVINE, COLLEGE OF MEDICINE
Graduated 1983 (43 years in practice)
Group practice Anesthesiology Associates Of Tallahassee Inc — 132 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients67
Services billed 92 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Colleagues at Anesthesiology Associates of Tallahassee Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 132 clinicians in the practice; 12 are shown here.

Other providers in Las Vegas