MARY LUDVIGSEN N.P.
NPI 1194740514
Nurse Practitioner - Family in Oak Park, IL
About Mary Ludvigsen N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY LUDVIGSEN N.P. (NPI 1194740514) is an individual family provider in Oak Park, Illinois, licensed in Illinois (209.003905) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains 5 additional practice locations, and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 5
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
Mary Ludvigsen N.p. 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
6Medicare enrollment records show Mary Ludvigsen reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60641
- Reassigned Medicare billing, Illinois enrollment
- 366 clinicians in this Medicare group
Mishawaka, IN 46545
- Reassigned Medicare billing, Indiana and Michigan enrollments
- 166 clinicians in this Medicare group
Huber Heights, OH 45424
- Reassigned Medicare billing, Ohio enrollment
- Medicare enrollment name: Hometown Urgent Care Of Michigan PC
- 168 clinicians in this Medicare group
Liverpool, NY 13090
- Reassigned Medicare billing, Illinois, New York and Pennsylvania enrollments
- Medicare enrollment name: Wellnow Urgent Care, P.C.
- 195 clinicians in this Medicare group
Mobile, AL 36609
- Reassigned Medicare billing, Alabama enrollment
- Medicare enrollment name: Immediate Care Center Of The South, LLC
- 24 clinicians in this Medicare group
Foley, AL 36535
- Reassigned Medicare billing, Alabama enrollment
- Medicare enrollment name: Immediate Care Foley, LLC
- 23 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60302 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Mary Ludvigsen's NPI number?
The NPI number for Mary Ludvigsen is 1194740514. It was assigned to this individual provider in the NPPES registry on July 13, 2006.
Where is Mary Ludvigsen located?
Mary Ludvigsen practices at 6831 North Ave, Oak Park, IL 60302. The listed phone number is (708) 298-0540.
What is Mary Ludvigsen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mary Ludvigsen enrolled in Medicare?
Yes. Mary Ludvigsen 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 Mary Ludvigsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Ludvigsen reassigns Medicare benefits to 6 organizations: Physicians Immediate Care North Chicago LLC (Chicago, IL), Pic Indiana PC (Mishawaka, IN), Hometown Urgent Care Of Michigan, P.C. (Huber Heights, OH), Wellnow Urgent Care, PC (Liverpool, NY), Jamus Mobile Urgent Care (Mobile, AL) and 1 more organization, 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 Mary Ludvigsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Ludvigsen accept?
Health plans from Anthem Blue Cross and Blue Shield list Mary Ludvigsen 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 Mary Ludvigsen was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 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.
# Mary Ludvigsen, N.P. · NPI 1194740514
Family physician in Oak Park, Illinois. Individual provider, active in the CMS NPPES registry since July 13, 2006.
## Identity
- **NPI:** 1194740514 (Entity type: Individual)
- **Enumerated:** July 13, 2006
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 209.003905 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 6831 NORTH AVE, Oak Park, IL 60302-1023
- **Phone:** (708) 298-0540
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Physicians Immediate Care North Chicago LLC (NPI 1205814118, Chicago, IL); Pic Indiana PC (NPI 1942546890, Mishawaka, IN); Hometown Urgent Care Of Michigan, P.C. (NPI 1790030385, Huber Heights, OH); Wellnow Urgent Care, PC (NPI 1669825162, Liverpool, NY); Jamus Mobile Urgent Care (NPI 1326294414, Mobile, AL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** September 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1194740514) · Data from the CMS NPPES public registry.