DUFFY M CASEY MD
NPI 1346478161
Obstetrics & Gynecology in Minocqua, WI
About Duffy M Casey Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DUFFY M CASEY MD (NPI 1346478161) is an individual obstetrics & gynecology provider in Minocqua, Wisconsin, licensed in Wisconsin (82138) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS and is a graduate of Eastern Virginia Medical School (2009).
NPPES Registry Identity
Specialties & Licenses
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
Duffy M Casey 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
7Medicare enrollment records show Duffy Casey reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Minocqua, WI 54548
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Waupun, WI 53963
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Kahului, HI 96732
- Reassigned Medicare billing, Hawaii enrollment
- 35 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 54548 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
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 Duffy Casey's NPI number?
The NPI number for Duffy Casey is 1346478161. It was assigned to this individual provider in the NPPES registry on July 1, 2009.
Where is Duffy Casey located?
Duffy Casey practices at 9576 Highway 70, Minocqua, WI 54548. The listed phone number is (715) 358-1000.
What is Duffy Casey's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Duffy Casey enrolled in Medicare?
Yes. Duffy Casey 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 Duffy Casey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Duffy Casey reassigns Medicare benefits to 7 organizations: Mchs Hospitals Inc (Minocqua, WI), Flambeau Hospital Inc (Park Falls, WI), Marshfield Clinic Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI) and 2 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 Duffy Casey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Duffy Casey accept?
Health plans from Anthem Blue Cross and Blue Shield, HMSA and Sanford Health Plan list Duffy Casey 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 Duffy Casey was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 days 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.
# Duffy M Casey, MD · NPI 1346478161
Obstetrics & Gynecology physician in Minocqua, Wisconsin. Individual provider, active in the CMS NPPES registry since July 1, 2009.
## Identity
- **NPI:** 1346478161 (Entity type: Individual)
- **Enumerated:** July 1, 2009
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 82138 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9576 HIGHWAY 70, Minocqua, WI 54548-9067
- **Phone:** (715) 358-1000
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Mchs Hospitals Inc (NPI 1942854716, Minocqua, WI); Flambeau Hospital Inc (NPI 1194317966, Park Falls, WI); Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Memorial Hospital, Inc (NPI 1679746747, Neillsville, WI); Lakeview Medical Center Inc Of Rice Lake (NPI 1659008605, Chetek, WI); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Eastern Virginia Medical School, class of 2009
## Record status
- **NPPES last updated:** September 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1346478161) · Data from the CMS NPPES public registry.