MARY L BROWN APN
NPI 1508127051
Nurse Practitioner - Family in Chicago, IL
About Mary L Brown Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY L BROWN APN (NPI 1508127051) is an individual family provider in Chicago, Illinois, licensed in Illinois (209006041) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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
Mary L Brown Apn 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
3Medicare enrollment records show Mary Brown reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60615
- Reassigned Medicare billing, Illinois enrollment
- 132 clinicians in this Medicare group
Oak Park, IL 60302
- Reassigned Medicare billing, Illinois enrollment
- 221 clinicians in this Medicare group
Oak Park, IL 60301
- Reassigned Medicare billing, Illinois enrollment
- 4 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 60615 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60615
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 Brown's NPI number?
The NPI number for Mary Brown is 1508127051. It was assigned to this individual provider in the NPPES registry on May 31, 2012.
Where is Mary Brown located?
Mary Brown practices at 800 E 55th St, Chicago, IL 60615. The listed phone number is (773) 702-0660.
What is Mary Brown's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mary Brown enrolled in Medicare?
Yes. Mary Brown 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 Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Brown reassigns Medicare benefits to 3 organizations: Friend Family Health Center Inc (Chicago, IL), Pcc Community Wellness Center (Oak Park, IL) and Greenbax Health Solutions, LLC (Oak Park, IL). 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 Brown's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Brown accept?
Health plans from Oscar Health and UnitedHealthcare list Mary Brown 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 Brown was last updated on March 5, 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.
# Mary L Brown, APN · NPI 1508127051
Family physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since May 31, 2012.
## Identity
- **NPI:** 1508127051 (Entity type: Individual)
- **Enumerated:** May 31, 2012
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 209006041 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 800 E 55TH ST, Chicago, IL 60615
- **Phone:** (773) 702-0660
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Friend Family Health Center Inc (NPI 1245842863, Chicago, IL); Pcc Community Wellness Center (NPI 1871516799, Oak Park, IL); Greenbax Health Solutions, LLC (NPI 1538792221, Oak Park, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** March 5, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1508127051) · Data from the CMS NPPES public registry.