DR. RICHARD J GRIESHOP M.D.
NPI 1215020326
Surgery - Vascular Surgery in West Allis, WI
About Dr. Richard J Grieshop M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RICHARD J GRIESHOP M.D. (NPI 1215020326) is an individual vascular surgery provider in West Allis, Wisconsin, licensed in Wisconsin (33262) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
Dr. Richard J Grieshop M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Richard Grieshop reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53227 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WEST ALLIS, WI 53227
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 Richard Grieshop's NPI number?
The NPI number for Richard Grieshop is 1215020326. It was assigned to this individual provider in the NPPES registry on October 2, 2006.
Where is Richard Grieshop located?
Richard Grieshop practices at 2424 S 90th St Ste 300, West Allis, WI 53227. The listed phone number is (414) 328-8150.
What is Richard Grieshop's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.
Is Richard Grieshop enrolled in Medicare?
Yes. Richard Grieshop is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Richard Grieshop's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Grieshop reassigns Medicare benefits to Ascension Medical Group-Southeast Wisconsin Inc (Milwaukee, 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 Richard Grieshop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Richard Grieshop accept?
Health plans from CareSource (Common Ground Healthcare) list Richard Grieshop 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 Richard Grieshop was last updated on July 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.