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NATHAN T LEPP M.D.
NPI 1801017876
Pediatrics - Neonatal-Perinatal Medicine in Madison, WI

Active since May 01, 2007PECOS Enrolled
600 HIGHLAND AVE, MADISON, WI 53792(608) 890-9600(608) 890-7181 Get Directions Write a Review

NPPES record last updated: January 15, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 15, 2021, Aug 23, 2019 (2 updates tracked since 2019).

About Nathan T Lepp M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NATHAN T LEPP M.D. (NPI 1801017876) is an individual neonatal-perinatal medicine provider in Madison, Wisconsin, licensed in Wisconsin (71616-20) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in Phoenix.

NPPES Registry Identity

NPI1801017876
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameNATHAN T LEPPCredential: M.D.
Location Address600 HIGHLAND AVEMadison, WI 53792
Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531
Phone(608) 890-9600
Fax(608) 890-7181
Sole ProprietorNo
Enumeration DateMay 1, 2007
Last NPPES UpdateJanuary 15, 20212 updates tracked since enumeration
NPPES CertifiedJanuary 15, 2021
✔ NPI 1801017876 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in WI · 71616-20
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
600 HIGHLAND AVE, Madison, WI 53792
Open in Google Maps ↗

Secondary Practice Location 1

Location 1300 W Clarendon Ave #375Phoenix, AZ 85013-3420 · Phone (602) 277-4161 ext. 36 · Fax (602) 265-2011

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Aspirus Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nathan T Lepp M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Nathan Lepp reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Wisconsin Medical Foundation, Inc
4.8 mi
Multi-Specialty
7974 UW HEALTH COURT
Middleton, WI 53562
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,832 clinicians in this Medicare group
NPI 1598784555 (608) 829-5485

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 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JASON ALAN CHRISTENSEN PHARMD
Pharmacist
600 HIGHLAND AVE, COMPLIANCE MAIL CODE 2433
MADISON, WI 53792
Dane County (608) 662-0817
LAURA JEAN KOPPLIN MD, PHD
Ophthalmology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6070
HAGGI MAZEH MD
Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 265-8072
DR. SWAPNIL SUNIL LANJEWAR M.D.
Internal Medicine (Infectious Disease)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-0946
DR. MATTHEW JAMES HOYT M.D.
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
VANESSA MERCEDES WELTEN MD MPH
Transplant Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (617) 732-5500
JOHN HENRY NORMAN HARRISON
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
PIPPA FROUKTE COSPER MD
Radiology (Radiation Oncology)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8500

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 Lepp's NPI number?

The NPI number for Nathan Lepp is 1801017876. It was assigned to this individual provider in the NPPES registry on May 1, 2007.

Where is Nathan Lepp located?

Nathan Lepp practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 890-9600.

What is Nathan Lepp's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Nathan Lepp enrolled in Medicare?

Yes. Nathan Lepp is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nathan Lepp's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Lepp reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, 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 Lepp's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nathan Lepp accept?

Health plans from Aspirus Health Plan list Nathan Lepp 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.

When was this NPI record last updated?

The NPPES record for Nathan Lepp was last updated on January 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.