NATHAN SCHLOEMER M.D.
NPI 1689830465
Pediatrics in Milwaukee, WI
About Nathan Schloemer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN SCHLOEMER M.D. (NPI 1689830465) is an individual pediatrics provider in Milwaukee, Wisconsin, licensed in Wisconsin (55689) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Childrens Hospital Of Wisconsin, and is a graduate of University Of Wisconsin School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Nathan Schloemer M.d. 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 Nathan Schloemer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Childrens Specialty Group Inc
- 424 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Childrens Hospital Of Wisconsin
Childrens · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53226 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.
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
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 Schloemer's NPI number?
The NPI number for Nathan Schloemer is 1689830465. It was assigned to this individual provider in the NPPES registry on July 31, 2008.
Where is Nathan Schloemer located?
Nathan Schloemer practices at 9000 W Wisconsin Ave Pediatric Hematology/Oncology, Milwaukee, WI 53226. The listed phone number is (414) 955-4170.
What is Nathan Schloemer's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Nathan Schloemer enrolled in Medicare?
Yes. Nathan Schloemer 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 Nathan Schloemer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Schloemer reassigns Medicare benefits to 2 organizations: Children's Specialty Group, Inc. (Milwaukee, WI) and The Medical College Of Wisconsin, 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 Nathan Schloemer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Schloemer accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Network Health and UnitedHealthcare list Nathan Schloemer 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 Nathan Schloemer affiliated with any hospitals?
According to CMS data, Nathan Schloemer is affiliated with Childrens Hospital Of Wisconsin.
When was this NPI record last updated?
The NPPES record for Nathan Schloemer was last updated on October 8, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Nathan Schloemer, M.D. · NPI 1689830465
Pediatrics physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since July 31, 2008.
## Identity
- **NPI:** 1689830465 (Entity type: Individual)
- **Enumerated:** July 31, 2008
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 55689 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9000 W WISCONSIN AVE, PEDIATRIC HEMATOLOGY/ONCOLOGY, Milwaukee, WI 53226-4874
- **Phone:** (414) 955-4170 · **Fax:** (414) 955-6543
## 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): Children's Specialty Group, Inc. (NPI 1942970405, Milwaukee, WI); The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** October 8, 2014
- **Other identifiers:** Medicare PIN 680860960 (WI); Medicare PIN 736012195 (WI); Medicaid 1689830465 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1689830465) · Data from the CMS NPPES public registry.