DR. RICHARD J GRIESHOP M.D.
NPI 1215020326
Surgery - Vascular Surgery in West Allis, WI

Active since October 02, 2006PECOS Enrolled
2424 S 90TH ST STE 300, WEST ALLIS, WI 53227(414) 328-8150 Get Directions Write a Review

NPPES record last updated: July 17, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 17, 2024, Nov 23, 2021, Feb 19, 2018 (3 updates tracked since 2018).

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

NPI1215020326
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameDR. RICHARD J GRIESHOPCredential: M.D.
Location Address2424 S 90TH ST STE 300West Allis, WI 53227-2455
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Sole ProprietorNo
Enumeration DateOctober 2, 2006
Last NPPES UpdateJuly 17, 20243 updates tracked since enumeration
NPPES CertifiedJuly 17, 2024
✔ NPI 1215020326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in WI · 33262
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
2424 S 90TH ST STE 300, West Allis, WI 53227

Other Identifiers 1

Medicaid31823400WI

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).

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 Richard Grieshop reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anesthesiology
2301 N LAKE DR
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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
49 services26 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
26 services26 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
12 services12 patients

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.

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
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
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 10

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

Internal Medicine (Pulmonary Disease)
2424 S 90TH ST STE 300
WEST ALLIS, WI 53227
Nurse Practitioner
2424 S 90TH ST STE 300
WEST ALLIS, WI 53227
Nurse Practitioner
2424 S 90TH ST STE 300
WEST ALLIS, WI 53227
Nurse Practitioner
2424 S 90TH ST STE 300
WEST ALLIS, WI 53227
Internal Medicine (Gastroenterology)
2424 S 90TH ST STE 300
WEST ALLIS, WI 53227
Surgery (Vascular Surgery)
2424 S 90TH ST STE 300
WEST ALLIS, WI 53227
Physician Assistant
2424 S 90TH ST STE 300
WEST ALLIS, WI 53227
Physician Assistant
2424 S 90TH ST STE 300
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.