DR. LLOYD CHARLES CASSIDY IV MD
NPI 1457795569
Family Medicine in Green Bay, WI
About Dr. Lloyd Charles Cassidy Iv Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LLOYD CHARLES CASSIDY IV MD (NPI 1457795569) is an individual family medicine provider in Green Bay, Wisconsin, licensed in Wisconsin (70125) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Bellin Memorial Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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. Lloyd Charles Cassidy Iv 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
9Medicare enrollment records show Lloyd Cassidy reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Green Bay, WI 54301
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Green Bay Emergency Medicine Services Sc
- 33 clinicians in this Medicare group
De Pere, WI 54115
- Reassigned Medicare billing, Wisconsin enrollment
- 11 clinicians in this Medicare group
Menasha, WI 54952
- Reassigned Medicare billing, Wisconsin enrollment
- 988 clinicians in this Medicare group
Shawano, WI 54166
- Reassigned Medicare billing, Wisconsin enrollment
- 174 clinicians in this Medicare group
Manitowoc, WI 54220
- Reassigned Medicare billing, Wisconsin enrollment
- 350 clinicians in this Medicare group
Urbana, IL 61801
- Reassigned Medicare billing, Illinois enrollment
- 83 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,338 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,439 clinicians in this Medicare group
Scottsdale, AZ 85254
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Apogee Medical Group Wisconsin Sc
- 112 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bellin Memorial Hospital
Acute Care Hospitals · Green Bay, WIHoly Family Memorial
Acute Care Hospitals · Manitowoc, WIBellin Health Oconto Hospital
Critical Access Hospitals · Oconto, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54303 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Lloyd Cassidy's NPI number?
The NPI number for Lloyd Cassidy is 1457795569. It was assigned to this individual provider in the NPPES registry on April 18, 2013.
Where is Lloyd Cassidy located?
Lloyd Cassidy practices at 124 Siegler St, Green Bay, WI 54303. The listed phone number is (920) 605-3115.
What is Lloyd Cassidy's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Lloyd Cassidy enrolled in Medicare?
Yes. Lloyd Cassidy 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 Lloyd Cassidy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lloyd Cassidy reassigns Medicare benefits to 9 organizations: Green Bay Emergency Medicine Services S.C. (Green Bay, WI), St Gianna Molla Clinic, Inc (De Pere, WI), Thedacare, Incorporated (Menasha, WI), Thedacare Medical Center - Shawano, Inc. (Shawano, WI), Froedtert Manitowoc Medical Group, LLC (Manitowoc, WI) and 4 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 Lloyd Cassidy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lloyd Cassidy accept?
Health plans from Anthem Blue Cross and Blue Shield, Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CareSource (Common Ground Healthcare) and HealthPartners and 1 other insurer list Lloyd Cassidy 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.
Is Lloyd Cassidy affiliated with any hospitals?
According to CMS data, Lloyd Cassidy is affiliated with Bellin Memorial Hospital, Holy Family Memorial and Bellin Health Oconto Hospital.
When was this NPI record last updated?
The NPPES record for Lloyd Cassidy was last updated on January 27, 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.
# Dr. Lloyd Charles Cassidy IV, MD · NPI 1457795569
Family Medicine physician in Green Bay, Wisconsin. Individual provider, active in the CMS NPPES registry since April 18, 2013.
## Identity
- **NPI:** 1457795569 (Entity type: Individual)
- **Enumerated:** April 18, 2013
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 70125 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 124 SIEGLER ST, Green Bay, WI 54303-2636
- **Phone:** (920) 605-3115 · **Fax:** (920) 486-6826
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Green Bay Emergency Medicine Services S.C. (NPI 1366424111, Green Bay, WI); St Gianna Molla Clinic, Inc (NPI 1104426477, De Pere, WI); Thedacare, Incorporated (NPI 1306959515, Menasha, WI); Thedacare Medical Center - Shawano, Inc. (NPI 1548260839, Shawano, WI); Froedtert Manitowoc Medical Group, LLC (NPI 1437829975, Manitowoc, WI); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** January 27, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1457795569) · Data from the CMS NPPES public registry.