DR. MICHAEL JOSEPH SHALLCROSS MD
NPI 1962965624
Internal Medicine - Critical Care Medicine in Milwaukee, WI

Active since April 10, 2019PECOS Enrolled
2901 W KINNICKINNIC RIVER PKWY STE 315, MILWAUKEE, WI 53215(414) 385-2592(414) 385-2591 Get Directions Write a Review

NPPES record last updated: June 30, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 30, 2025, Sep 16, 2021, Apr 10, 2019 (3 updates tracked since 2019).

About Dr. Michael Joseph Shallcross Md NPPES

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

DR. MICHAEL JOSEPH SHALLCROSS MD (NPI 1962965624) is an individual critical care medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (85628-20) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1962965624
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameDR. MICHAEL JOSEPH SHALLCROSSCredential: MD
Location Address2901 W KINNICKINNIC RIVER PKWY STE 315Milwaukee, WI 53215-3660
Mailing Address615 E Corcoran Ave Unit 241Milwaukee, WI 53202-4534 · (703) 851-3647
Fax(414) 385-2591
Sole ProprietorNo
Enumeration DateApril 10, 2019
Last NPPES UpdateJune 30, 20253 updates tracked since enumeration
NPPES CertifiedJune 30, 2025
✔ NPI 1962965624 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in WI · 85628-20
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedEmergency MedicineTaxonomy 207P00000X · License 85628-20 (WI)
Also ListedFamily MedicineTaxonomy 207Q00000X · License 0101272972 (VA)
2901 W KINNICKINNIC RIVER PKWY STE 315, Milwaukee, WI 53215

Secondary Practice Locations 2

Location 16311 Richmond HwyAlexandria, VA 22306-6410 · Phone (703) 647-6087
Location 210510 Jefferson Ave Ste ANewport News, VA 23601-3102 · Phone (757) 594-3800

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Michael Joseph Shallcross Md 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 Michael Shallcross reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Family Medicine
5000 COX RD, SUITE 100
Glen Allen, VA 23060
  • Reassigned Medicare billing, District of Columbia enrollment
  • 263 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 53215 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
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 15

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

Anesthesiology
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215
Internal Medicine (Critical Care Medicine)
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215
Anesthesiology
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215
Internal Medicine (Pulmonary Disease)
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215
Nurse Practitioner
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215
Anesthesiology
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215
Anesthesiology
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215
Anesthesiology
2901 W KINNICKINNIC RIVER PKWY STE 315
MILWAUKEE, WI 53215

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 Michael Shallcross's NPI number?

The NPI number for Michael Shallcross is 1962965624. It was assigned to this individual provider in the NPPES registry on April 10, 2019.

Where is Michael Shallcross located?

Michael Shallcross practices at 2901 W Kinnickinnic River Pkwy Ste 315, Milwaukee, WI 53215. The listed phone number is (414) 385-2592.

What is Michael Shallcross's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Michael Shallcross enrolled in Medicare?

Yes. Michael Shallcross is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michael Shallcross's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Shallcross reassigns Medicare benefits to Patient First Richmond Medical Group PLLC (Glen Allen, VA). 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 Michael Shallcross'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 Michael Shallcross was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.