HOLLY MARIE WILLIAMS MD
NPI 1184935041
Emergency Medicine in Worland, WY
About Holly Marie Williams Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HOLLY MARIE WILLIAMS MD (NPI 1184935041) is an individual emergency medicine provider in Worland, Wyoming, licensed in Utah (5520946-1205) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Moab Regional Hospital, and maintains a secondary practice location in Moab.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Holly Marie Williams Md 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
7Medicare enrollment records show Holly Williams reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Worland, WY 82401
- Reassigned Medicare billing, Wyoming enrollment
- 46 clinicians in this Medicare group
Guernsey, WY 82214
- Reassigned Medicare billing, Wyoming enrollment
- 35 clinicians in this Medicare group
Torrington, WY 82240
- Reassigned Medicare billing, Wyoming enrollment
- 64 clinicians in this Medicare group
Salt Lake City, UT 84102
- Reassigned Medicare billing, Utah enrollment
- 316 clinicians in this Medicare group
Moab, UT 84532
- Reassigned Medicare billing, Utah enrollment
- 84 clinicians in this Medicare group
Rock Point, AZ 86545
- Reassigned Medicare billing, Texas enrollment
- 476 clinicians in this Medicare group
Brunswick, ME 04011
- Reassigned Medicare billing, Maine enrollment
- 170 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Moab Regional Hospital
Critical Access Hospitals · Moab, UTWashakie Medical Center
Critical Access Hospitals · Worland, WYCody Regional Health
Critical Access Hospitals · Cody, WYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 82401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WORLAND, WY 82401
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 Holly Williams's NPI number?
The NPI number for Holly Williams is 1184935041. It was assigned to this individual provider in the NPPES registry on June 25, 2010.
Where is Holly Williams located?
Holly Williams practices at 400 South 15th Street, Worland, WY 82401. The listed phone number is (307) 347-5810.
What is Holly Williams's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Holly Williams enrolled in Medicare?
Yes. Holly 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 Holly Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Holly Williams reassigns Medicare benefits to 7 organizations: Washakie Medical Center (Worland, WY), Platte County Hospital (Guernsey, WY), Community Hospital (Torrington, WY), Emergency Physicians Integrated Care, LLC (Salt Lake City, UT), Moab Valley Healthcare, Inc. (Moab, UT) and 2 more organizations, listed in the Medicare section above. 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 Holly Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Holly Williams accept?
Health plans from Blue Cross Blue Shield of Wyoming, Imperial Insurance Companies, Inc. and Taro Health list Holly 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 Holly Williams affiliated with any hospitals?
According to CMS data, Holly Williams is affiliated with Moab Regional Hospital, Washakie Medical Center and Cody Regional Health.
When was this NPI record last updated?
The NPPES record for Holly Williams was last updated on May 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Holly Marie Williams, MD · NPI 1184935041
Emergency Medicine physician in Worland, Wyoming. Individual provider, active in the CMS NPPES registry since June 25, 2010.
## Identity
- **NPI:** 1184935041 (Entity type: Individual)
- **Enumerated:** June 25, 2010
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 5520946-1205 (Utah)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 SOUTH 15TH STREET, Worland, WY 82401
- **Phone:** (307) 347-5810 · **Fax:** (307) 347-5808
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Washakie Medical Center (NPI 1255368593, Worland, WY); Platte County Hospital (NPI 1174052989, Guernsey, WY); Community Hospital (NPI 1164950036, Torrington, WY); Emergency Physicians Integrated Care, LLC (NPI 1578598199, Salt Lake City, UT); Moab Valley Healthcare, Inc. (NPI 1285380394, Moab, UT); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Utah School Of Medicine, class of 2010
## Record status
- **NPPES last updated:** May 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1184935041) · Data from the CMS NPPES public registry.