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

William S Anast, MD

Individual provider Anesthesiology Physician · NPI 1124024468

William S Anast, MD practises Anesthesiology in Rolla, Missouri. Graduated from Washington University School of Medicine in 1990, 36 years ago. Practices with Saint Lukes Physician Group Inc, a 1,229-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
36
Trained at
Washington University School of Medicine
Licensed in
MO
In the registry since
2005
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

1605 Martin Springs Dr
Rolla, MO 65401-2982 Not confirmed with CMS for 12 years — call before visiting
Phone: (417) 458-6637
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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 105048 (MO)

Record details

NPI number1124024468
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 22, 2005
Last updated in NPPESNovember 8, 2013

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Saint Lukes Physician Group Inc — 1229 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients509
Services billed 587 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Saint Lukes Physician Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1229 clinicians in the practice; 12 are shown here.

Other providers in Rolla