DR. EARL WAYNE GROGAN MD
NPI 1861465700
Internal Medicine - Clinical Cardiac Electrophysiology in Madison, WI
About Dr. Earl Wayne Grogan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EARL WAYNE GROGAN MD (NPI 1861465700) is an individual clinical cardiac electrophysiology provider in Madison, Wisconsin, licensed in Wisconsin (26790-020) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Earl Wayne Grogan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Earl Grogan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wisconsin Dells, WI 53965
- Reassigned Medicare billing, Wisconsin enrollment
- 189 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 53705 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Earl Grogan's NPI number?
The NPI number for Earl Grogan is 1861465700. It was assigned to this individual provider in the NPPES registry on February 10, 2006.
Where is Earl Grogan located?
Earl Grogan practices at 1102 Dartmouth Rd, Madison, WI 53705. The listed phone number is (608) 417-2100.
What is Earl Grogan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Earl Grogan enrolled in Medicare?
Yes. Earl Grogan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Earl Grogan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Earl Grogan reassigns Medicare benefits to Mile Bluff Medical Center Inc (Wisconsin Dells, 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 Earl Grogan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Earl Grogan was last updated on August 11, 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.