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

William Curtis Small, MD

Individual provider Family Medicine Physician · NPI 1992793673

William Curtis Small, MD is registered under Family Practice in Williston, North Dakota. Graduated from Wayne State University School of Medicine in 1982, 44 years ago. Practices with Mercy Medical Center, a 80-clinician group and accepts Medicare assignment. Licensed in North Dakota.

Years since qualifying
44
Trained at
Wayne State University School of Medicine
Licensed in
ND
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

1213 15th Ave W
Williston, ND 58801-3800 Not confirmed with CMS for 14 years — call before visiting
Phone: (701) 774-7400
Fax: (701) 774-7482
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 11268 (ND)

Record details

NPI number1992793673
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 7, 2005
Last updated in NPPESSeptember 14, 2012

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Mercy Medical Center — 80 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 patients15
Services billed 48 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.

  • Bethel Lutheran Nursing & Rehabilitation Center Nursing home · Williston, ND
  • Chi St Alexius Health Hospital · Bismarck, ND
  • Chi St Alexius Health Williston Hospital · Williston, ND
  • Chi Health At Home - Hha Home health agency · Williston, ND

Colleagues at Mercy Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 80 clinicians in the practice; 12 are shown here.

Other providers in Williston