DR. GEORGE MATTHEW MUSSMAN MD
NPI 1881398170
Pediatrics in Lake Geneva, WI

Active since March 29, 2023PECOS Enrolled
N2950 STATE ROAD 67, LAKE GENEVA, WI 53147(262) 245-0535 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 1, 2026, Jul 27, 2026, Jun 2, 2023 and 1 more (4 updates tracked since 2023).

About Dr. George Matthew Mussman Md NPPES

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

DR. GEORGE MATTHEW MUSSMAN MD (NPI 1881398170) is an individual pediatrics provider in Lake Geneva, Wisconsin, licensed in Illinois (125.081966) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and is a graduate of New York Medical College (2023).

NPPES Registry Identity

NPI1881398170
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. GEORGE MATTHEW MUSSMANCredential: MD
Location AddressN2950 STATE ROAD 67Lake Geneva, WI 53147-2655
Mailing AddressN2950 State Road 67Lake Geneva, WI 53147-2655
Sole ProprietorNo
Medical School CMSNew York Medical CollegeGraduated 2023
Enumeration DateMarch 29, 2023
Last NPPES UpdateSeptember 1, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 1, 2026
✔ NPI 1881398170 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in IL · 125.081966✔ Licensed in IL · 036.177887✔ Licensed in WI · 87674-20
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
N2950 STATE ROAD 67, Lake Geneva, WI 53147

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. George Matthew Mussman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3375000672
PECOS Enrollment IDI20260806002173
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 George Mussman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Multi-Specialty
580 N WASHINGTON ST
Janesville, WI 53548
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,155 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53147 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Counselor (Professional)
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147
Emergency Medicine
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147
Occupational Therapist
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147
Podiatrist
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147
Physical Therapist
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147
Pharmacist
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147
Emergency Medicine
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147
Physician Assistant
N2950 STATE ROAD 67
LAKE GENEVA, WI 53147

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 George Mussman's NPI number?

The NPI number for George Mussman is 1881398170. It was assigned to this individual provider in the NPPES registry on March 29, 2023.

Where is George Mussman located?

George Mussman practices at N2950 State Road 67, Lake Geneva, WI 53147. The listed phone number is (262) 245-0535.

What is George Mussman's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is George Mussman enrolled in Medicare?

Yes. George Mussman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for George Mussman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), George Mussman reassigns Medicare benefits to Mercy Health System Corporation (Janesville, 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 George Mussman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does George Mussman accept?

Health plans from MercyCare and MercyCare Health Plans list George Mussman 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 George Mussman was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 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.