LYDIA RITA ASSIOUN M.D.
NPI 1487049128
Hospitalist in Milwaukee, WI
About Lydia Rita Assioun M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LYDIA RITA ASSIOUN M.D. (NPI 1487049128) is an individual hospitalist provider in Milwaukee, Wisconsin, licensed in Wisconsin (72657) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, is affiliated with New Liberty Hospital District, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses 2
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
Lydia Rita Assioun M.d. 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
2Medicare enrollment records show Lydia Assioun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Plattsburg, MO 64477
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: New Liberty Hospital Corporation
- 166 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 6
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New Liberty Hospital District
Acute Care Hospitals · Liberty, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53211 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.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Lydia Assioun's NPI number?
The NPI number for Lydia Assioun is 1487049128. It was assigned to this individual provider in the NPPES registry on March 31, 2015.
Where is Lydia Assioun located?
Lydia Assioun practices at 2320 N Lake Dr, Milwaukee, WI 53211. The listed phone number is (414) 270-4932.
What is Lydia Assioun's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Lydia Assioun enrolled in Medicare?
Yes. Lydia Assioun 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 Lydia Assioun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lydia Assioun reassigns Medicare benefits to 2 organizations: Columbia St. Mary's Hospital Milwaukee, Inc (Milwaukee, WI) and New Liberty Hospital Coporation (Plattsburg, MO). 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 Lydia Assioun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lydia Assioun accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City and Oscar Insurance Company list Lydia Assioun 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 Lydia Assioun affiliated with any hospitals?
According to CMS data, Lydia Assioun is affiliated with New Liberty Hospital District.
When was this NPI record last updated?
The NPPES record for Lydia Assioun was last updated on August 4, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Lydia Rita Assioun, M.D. · NPI 1487049128
Hospitalist physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since March 31, 2015.
## Identity
- **NPI:** 1487049128 (Entity type: Individual)
- **Enumerated:** March 31, 2015
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 72657 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2320 N LAKE DR, Milwaukee, WI 53211-4507
- **Phone:** (414) 270-4932
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1023064482, Milwaukee, WI); New Liberty Hospital Coporation (NPI 1396564019, Plattsburg, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** August 4, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1487049128) · Data from the CMS NPPES public registry.