KAREN T KELLER
NPI 1821411208
Nurse Practitioner - Family in Chicago, IL

Active since January 21, 2014PECOS EnrolledAccepts Medicare Assignment
5841 S MARYLAND AVE, M1035, CHICAGO, IL 60637(773) 926-9116 Get Directions Write a Review

NPPES record last updated: April 4, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Karen T Keller NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN T KELLER (NPI 1821411208) is an individual family provider in Chicago, Illinois, licensed in Illinois (209011228) and active in the NPI registry since January 2014. She is enrolled in Medicare PECOS, is affiliated with Osf Little Company Of Mary Medical Center, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1821411208
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKAREN T KELLER
Location Address5841 S MARYLAND AVE, M1035Chicago, IL 60637-1447
Mailing Address180 Harvester Dr, Suite 110Burr Ridge, IL 60527-7594 · (773) 702-1061
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateJanuary 21, 2014
Last NPPES UpdateApril 4, 2016
NPI 1821411208 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in IL · 209011228
5841 S MARYLAND AVE, Chicago, IL 60637

Other Identifiers 1

Other209011228IL · State Of Illinois

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Karen T Keller 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.

PECOS PAC ID4880811066
PECOS Enrollment IDI20140812001288
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Osf Little Company Of Mary Medical Center

Acute Care Hospitals · Evergreen Park, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140179
Location2800 W 95th StEvergreen Park, IL 60805 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60637 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Radiology (Diagnostic Radiology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Neurological Surgery
5841 S MARYLAND AVE
CHICAGO, IL 60637
Pathology (Hematology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637

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 Karen Keller's NPI number?

The NPI number for Karen Keller is 1821411208. It was assigned to this individual provider in the NPPES registry on January 21, 2014.

Where is Karen Keller located?

Karen Keller practices at 5841 S Maryland Ave M1035, Chicago, IL 60637. The listed phone number is (773) 926-9116.

What is Karen Keller's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Karen Keller enrolled in Medicare?

Yes. Karen Keller 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.

What insurance does Karen Keller accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Karen Keller 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 Karen Keller affiliated with any hospitals?

According to CMS data, Karen Keller is affiliated with Osf Little Company Of Mary Medical Center.

When was this NPI record last updated?

The NPPES record for Karen Keller was last updated on April 4, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.