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

William E Sachs, MD

Individual provider Surgery Physician · NPI 1083639769

William E Sachs, MD practises General Surgery in Topeka, Kansas. Graduated from University of Missouri, Kansas City, School of Medicine in 1997, 29 years ago. Practices with Cotton-O'Neil Clinic Revocable Trust, a 658-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Kansas.

Years since qualifying
29
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
KS
In the registry since
2006
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

823 SW Mulvane St
Topeka, KS 66606-1764
Phone: (785) 580-0369
Fax: (785) 354-0519
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1110 Saint Marys Rd, Junction City, KS 66441-4176 — (785) 762-2585
  • 1102 Saint Marys Rd, Junction City, KS 66441-4139 — (785) 238-0325
  • 1500 Sw 10th Ave, Topeka, KS 66604-1301 — (785) 354-6000

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 04-30299 (KS)

Record details

NPI number1083639769
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2006
Last updated in NPPESMarch 30, 2026
Certification dateMarch 30, 2026

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Cotton-O'Neil Clinic Revocable Trust — 658 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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.

Hernia repair - groin (open) 20 times · 96th percentile
Colonoscopy 1–10 times
Mastectomy 1–10 times
Melanoma (skin cancer) excision 1–10 times
Removal of tissue 1–10 times
Skin biopsy 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 patients219
Services billed 384 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. Those with a page here are linked.

Colleagues at Cotton-O'Neil Clinic Revocable Trust

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 658 clinicians in the practice; 12 are shown here.

Other providers in Topeka