DR. NATHAN DAVID BERG AU.D.
NPI 1558640052
Audiologist in Hales Corners, WI
About Dr. Nathan David Berg Au.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATHAN DAVID BERG AU.D. (NPI 1558640052) is an individual audiologist in Hales Corners, Wisconsin, licensed in Wisconsin (566156) and active in the NPI registry since August 2011.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Nathan David Berg Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nathan Berg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 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.
Other Providers at the Same Location NPPES 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HALES CORNERS, WI 53130
HALES CORNERS, WI 53130
HALES CORNERS, WI 53130
HALES CORNERS, WI 53130
HALES CORNERS, WI 53130
HALES CORNERS, WI 53130
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 Nathan Berg's NPI number?
The NPI number for Nathan Berg is 1558640052. It was assigned to this individual provider in the NPPES registry on August 15, 2011.
Where is Nathan Berg located?
Nathan Berg practices at 11035 W Forest Home Ave Suite 108, Hales Corners, WI 53130. The listed phone number is (414) 529-3215.
What is Nathan Berg's specialty?
The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.
Is Nathan Berg enrolled in Medicare?
Yes. Nathan Berg is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nathan Berg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Berg reassigns Medicare benefits to Ascension Medical Group-Southeast Wisconsin Inc (Milwaukee, WI). The 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 Nathan Berg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Nathan Berg was last updated on October 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.