SHEFFEY N MASSEY DO
NPI 1609834365
Emergency Medicine in Eau Claire, WI
About Sheffey N Massey Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHEFFEY N MASSEY DO (NPI 1609834365) is an individual emergency medicine provider in Eau Claire, Wisconsin, licensed in Wisconsin (40066) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Lakeview Memorial Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 3
Other Identifiers 1
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
Sheffey N Massey Do 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
6Medicare enrollment records show Sheffey Massey reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Roberts, WI 54023
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1396849303 (Wisconsin)
- 158 clinicians in this Medicare group
Hudson, WI 54016
- Reassigned Medicare billing, Wisconsin and Minnesota enrollments
- Also billed through NPI 1578932943 (Minnesota)
- 232 clinicians in this Medicare group
Stillwater, MN 55082
- Reassigned Medicare billing, Minnesota enrollment
- 94 clinicians in this Medicare group
Saint Croix Falls, WI 54024
- Reassigned Medicare billing, Wisconsin enrollment
- 453 clinicians in this Medicare group
Woodbury, MN 55125
- Reassigned Medicare billing, Minnesota enrollment
- 393 clinicians in this Medicare group
Minneapolis, MN 55403
- Reassigned Medicare billing, Minnesota enrollment
- 2,527 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 4
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.
Lakeview Memorial Hospital
Acute Care Hospitals · Stillwater, MNRegions Hospital
Acute Care Hospitals · Saint Paul, MNGov Juan F Luis Hospital & Medical Ctr
Acute Care Hospitals · St Croix, VIHudson Hospital
Critical Access Hospitals · Hudson, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54703 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 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 Sheffey Massey's NPI number?
The NPI number for Sheffey Massey is 1609834365. It was assigned to this individual provider in the NPPES registry on May 3, 2006. The provider is also known as Shef N Massey Do.
Where is Sheffey Massey located?
Sheffey Massey practices at 1400 Bellinger St, Eau Claire, WI 54703. The listed phone number is (715) 838-5222.
What is Sheffey Massey's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Sheffey Massey enrolled in Medicare?
Yes. Sheffey Massey 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 Sheffey Massey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sheffey Massey reassigns Medicare benefits to 6 organizations: Hudson Hospital Inc. (Roberts, WI), Group Health, Inc. (Hudson, WI), Lakeview Memorial Hospital Association Inc. (Stillwater, MN), St. Croix Regional Medical Center (Saint Croix Falls, WI), Regions Hospital (Woodbury, MN) and 1 more organization, 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 Sheffey Massey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sheffey Massey affiliated with any hospitals?
According to CMS data, Sheffey Massey is affiliated with Lakeview Memorial Hospital, Regions Hospital, Gov Juan F Luis Hospital & Medical Ctr and Hudson Hospital.
When was this NPI record last updated?
The NPPES record for Sheffey Massey was last updated on January 8, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.