DON DENNIS WILLIAMS M.D.
NPI 1942526819
Radiology - Diagnostic Radiology in Provo, UT
About Don Dennis Williams M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DON DENNIS WILLIAMS M.D. (NPI 1942526819) is an individual diagnostic radiology provider in Provo, Utah, licensed in Utah (9349137-1205) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS, is affiliated with Mountain View Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 1
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
Don Dennis Williams 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
4Medicare enrollment records show Don Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Provo, UT 84604
- Reassigned Medicare billing, Utah enrollment
- 414 clinicians in this Medicare group
Sandy, UT 84092
- Reassigned Medicare billing, Utah enrollment
- 2,620 clinicians in this Medicare group
East Liverpool, OH 43920
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Erie, PA 16550
- Reassigned Medicare billing, Pennsylvania enrollment
- 962 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 32
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mountain View Hospital
Acute Care Hospitals · Payson, UTHoly Cross Hospital-Jordan Valley
Acute Care Hospitals · West Jordan, UTTimpanogos Regional Hospital
Acute Care Hospitals · Orem, UTCentral Valley Medical Center - Cah
Critical Access Hospitals · Nephi, UTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 84604 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PROVO, UT 84604
PROVO, UT 84604
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 Don Williams's NPI number?
The NPI number for Don Williams is 1942526819. It was assigned to this individual provider in the NPPES registry on April 15, 2010.
Where is Don Williams located?
Don Williams practices at 1055 N 500 W Ste 112, Provo, UT 84604. The listed phone number is (801) 812-4624.
What is Don Williams's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Don Williams enrolled in Medicare?
Yes. Don Williams 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 Don Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Don Williams reassigns Medicare benefits to 4 organizations: Revere Health PC (Provo, UT), University Of Utah Adult Services (Sandy, UT), University Of Pittsburgh Physicians (East Liverpool, OH) and Regional Health Services Inc (Erie, PA). 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 Don Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Don Williams accept?
Health plans from Imperial Health Plan of the Southwest, Inc. and Select Health list Don Williams 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 Don Williams affiliated with any hospitals?
According to CMS data, Don Williams is affiliated with Mountain View Hospital, Holy Cross Hospital-Jordan Valley, Timpanogos Regional Hospital and Central Valley Medical Center - Cah.
When was this NPI record last updated?
The NPPES record for Don Williams was last updated on March 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.