WILLIAM T HARSHBARGER MD
NPI 1750349916
Emergency Medicine in Milwaukee, WI
About William T Harshbarger Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM T HARSHBARGER MD (NPI 1750349916) is an individual emergency medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (44414) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Aurora St Lukes Medical Center, and is a graduate of Indiana University School Of Medicine (1998).
NPPES Registry Identity
Specialties & Licenses
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
William T Harshbarger 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
2Medicare enrollment records show William Harshbarger reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 49 clinicians in this Medicare group
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Aurora St Lukes Medical Center
Acute Care Hospitals · Milwaukee, WIWest Allis Memorial Hospital
Acute Care Hospitals · West Allis, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53215 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 William Harshbarger's NPI number?
The NPI number for William Harshbarger is 1750349916. It was assigned to this individual provider in the NPPES registry on May 3, 2006.
Where is William Harshbarger located?
William Harshbarger practices at 2900 W Oklahoma Ave, Milwaukee, WI 53215. The listed phone number is (414) 659-6588.
What is William Harshbarger's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is William Harshbarger enrolled in Medicare?
Yes. William Harshbarger 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 William Harshbarger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Harshbarger reassigns Medicare benefits to 2 organizations: Ermed, Sc (Milwaukee, WI) and Aurora Medical Group, Inc. (Milwaukee, WI). 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 William Harshbarger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Harshbarger accept?
Health plans from CareSource (Common Ground Healthcare) list William Harshbarger 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 William Harshbarger affiliated with any hospitals?
According to CMS data, William Harshbarger is affiliated with Aurora St Lukes Medical Center and West Allis Memorial Hospital.
When was this NPI record last updated?
The NPPES record for William Harshbarger was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.
# William T Harshbarger, MD · NPI 1750349916
Emergency Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since May 3, 2006.
## Identity
- **NPI:** 1750349916 (Entity type: Individual)
- **Enumerated:** May 3, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 44414 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2900 W OKLAHOMA AVE, Milwaukee, WI 53215-4330
- **Phone:** (414) 659-6588 · **Fax:** (770) 237-1723
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Ermed, Sc (NPI 1023076296, Milwaukee, WI); Aurora Medical Group, Inc. (NPI 1427271378, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Indiana University School Of Medicine, class of 1998
## Record status
- **NPPES last updated:** October 21, 2026
- **Other identifiers:** Medicaid 34258600 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1750349916) · Data from the CMS NPPES public registry.