ZACHARY SINGER
NPI 1225371727
Family Medicine in Mequon, WI
About Zachary Singer NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZACHARY SINGER (NPI 1225371727) is an individual family medicine provider in Mequon, Wisconsin, licensed in Wisconsin (65416-021) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Aurora Medical Ctr Washington County, and maintains a secondary practice location in Madison.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Zachary Singer 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 Reassignment
Medicare enrollment records show Zachary Singer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milwaukee, WI 53209
- Reassigned Medicare billing, Wisconsin enrollment
- 1,615 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 11
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Aurora Medical Ctr Washington County
Acute Care Hospitals · Hartford, WIAurora St Lukes Medical Center
Acute Care Hospitals · Milwaukee, WIAurora Medical Center
Acute Care Hospitals · Grafton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53092 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.
Reported Quality Measures
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 Zachary Singer's NPI number?
The NPI number for Zachary Singer is 1225371727. It was assigned to this individual provider in the NPPES registry on April 3, 2013.
Where is Zachary Singer located?
Zachary Singer practices at 6425 W Mequon Rd, Mequon, WI 53092. The listed phone number is (262) 242-0051.
What is Zachary Singer's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Zachary Singer enrolled in Medicare?
Yes. Zachary Singer 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 organization bills Medicare for Zachary Singer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Singer reassigns Medicare benefits to Aurora Advanced Healthcare, 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 Zachary Singer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zachary Singer accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Network Health and 2 other insurers list Zachary Singer 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 Zachary Singer affiliated with any hospitals?
According to CMS data, Zachary Singer is affiliated with Aurora Medical Ctr Washington County, Aurora St Lukes Medical Center and Aurora Medical Center.
When was this NPI record last updated?
The NPPES record for Zachary Singer was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.