MICHAEL D GILLETT M.D.
NPI 1619954542
Urology in Sioux Falls, SD
About Michael D Gillett M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL D GILLETT M.D. (NPI 1619954542) is an individual urology provider in Sioux Falls, South Dakota, licensed in Minnesota (43656) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Avera Marshall Regional Medical Ctr, and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 7
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Michael D Gillett M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Michael Gillett reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sioux Falls, SD 57108
- Reassigned Medicare billing, South Dakota enrollment
- 43 clinicians in this Medicare group
Worthington, MN 56187
- Reassigned Medicare billing, Minnesota enrollment
- 260 clinicians in this Medicare group
Slayton, MN 56172
- Reassigned Medicare billing, Minnesota enrollment
- 87 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 36
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Avera Marshall Regional Medical Ctr
Critical Access Hospitals · Marshall, MNAvera Mckennan Hospital & University Health Center
Acute Care Hospitals · Sioux Falls, SDSanford Usd Medical Center
Acute Care Hospitals · Sioux Falls, SDSioux Falls Specialty Hospital
Acute Care Hospitals · Sioux Falls, SDAvera Queen Of Peace
Critical Access Hospitals · Mitchell, SDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 12
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Gillett's NPI number?
The NPI number for Michael Gillett is 1619954542. It was assigned to this individual provider in the NPPES registry on December 30, 2005.
Where is Michael Gillett located?
Michael Gillett practices at 201 W 69th St, Sioux Falls, SD 57108. The listed phone number is (605) 336-0635.
What is Michael Gillett's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Michael Gillett enrolled in Medicare?
Yes. Michael Gillett is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Michael Gillett's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Gillett reassigns Medicare benefits to 3 organizations: Urology Specialists Chartered (Sioux Falls, SD), Avera Marshall (Worthington, MN) and County Of Murray (Slayton, MN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Gillett's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Gillett accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Sanford Health Plan and 2 other insurers list Michael Gillett as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Michael Gillett affiliated with any hospitals?
According to CMS data, Michael Gillett is affiliated with Avera Marshall Regional Medical Ctr, Avera Mckennan Hospital & University Health Center, Sanford Usd Medical Center, Sioux Falls Specialty Hospital and Avera Queen Of Peace.
When was this NPI record last updated?
The NPPES record for Michael Gillett was last updated on February 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.