DR. JOHN CARTER RALPHE MD
NPI 1811962921
Pediatrics - Pediatric Cardiology in Madison, WI
About Dr. John Carter Ralphe Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN CARTER RALPHE MD (NPI 1811962921) is an individual pediatric cardiology provider in Madison, Wisconsin, licensed in Wisconsin (51095-020) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in La Crosse, and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Dr. John Carter Ralphe Md 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
10Medicare enrollment records show John Ralphe reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 clinicians in this Medicare group
Roscoe, IL 61073
- Reassigned Medicare billing, Illinois enrollment
- 474 clinicians in this Medicare group
Rockford, IL 61103
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Elm Grove, WI 53122
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Milwaukee, WI 53209
- Reassigned Medicare billing, Wisconsin enrollment
- 1,615 clinicians in this Medicare group
Saint Francis, WI 53235
- Reassigned Medicare billing, Wisconsin enrollment
- 960 clinicians in this Medicare group
Sheboygan, WI 53081
- Reassigned Medicare billing, Wisconsin enrollment
- 673 clinicians in this Medicare group
Stevens Point, WI 54482
- Reassigned Medicare billing, Wisconsin enrollment
- 633 clinicians in this Medicare group
Green Bay, WI 54304
- Reassigned Medicare billing, Wisconsin enrollment
- 742 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MADISON, WI 53792
MADISON, WI 53792
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 John Ralphe's NPI number?
The NPI number for John Ralphe is 1811962921. It was assigned to this individual provider in the NPPES registry on February 22, 2006.
Where is John Ralphe located?
John Ralphe practices at 600 Highland Ave H4/414 Csc, Madison, WI 53792. The listed phone number is (608) 262-1603.
What is John Ralphe's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is John Ralphe enrolled in Medicare?
Yes. John Ralphe 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 John Ralphe's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Ralphe reassigns Medicare benefits to 10 organizations: University Of Wisconsin Medical Foundation, Inc (Middleton, WI), Swedishamerican Hospital (Roscoe, IL), Rockford Health Physicians (Rockford, IL), Gundersen Lutheran Medical Center Inc (Elm Grove, WI), Aurora Medical Group, Inc. (West Allis, WI) and 5 more organizations, listed in the Medicare section above. 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 John Ralphe's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Ralphe accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), Dean Health Plan and Group Health Cooperative-SCW and 4 other insurers list John Ralphe 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 John Ralphe was last updated on August 2, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. John Carter Ralphe, MD · NPI 1811962921
Pediatric Cardiology physician in Madison, Wisconsin. Individual provider, active in the CMS NPPES registry since February 22, 2006.
## Identity
- **NPI:** 1811962921 (Entity type: Individual)
- **Enumerated:** February 22, 2006
- **Primary specialty:** Pediatrics - Pediatric Cardiology · taxonomy 2080P0202X
- **State license:** 51095-020 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 HIGHLAND AVE, H4/414 CSC, Madison, WI 53792-0001
- **Phone:** (608) 262-1603 · **Fax:** (608) 263-0440
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI); Swedishamerican Hospital (NPI 1386054062, Roscoe, IL); Rockford Health Physicians (NPI 1023275278, Rockford, IL); Gundersen Lutheran Medical Center Inc (NPI 1548992316, Elm Grove, WI); Aurora Medical Group, Inc. (NPI 1457592735, West Allis, WI); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** August 2, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1811962921) · Data from the CMS NPPES public registry.