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LAUREN PARTAIN APN
NPI 1285360156
Nurse Practitioner in Elmhurst, IL

Active since July 25, 2022PECOS EnrolledAccepts Medicare Assignment
91.35/100
CMS Quality Rating
133 E BRUSH HILL RD, ELMHURST, IL 60126(630) 279-8771(630) 348-3078 Get Directions Write a Review

NPPES record last updated: May 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 9, 2025, Aug 15, 2022, Jul 25, 2022 (3 updates tracked since 2022).

About Lauren Partain Apn NPPES

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

LAUREN PARTAIN APN (NPI 1285360156) is an individual nurse practitioner in Elmhurst, Illinois, licensed in Illinois (209.025564) and active in the NPI registry since July 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in Oak Park, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1285360156
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameLAUREN PARTAINCredential: APN
Location Address133 E BRUSH HILL RDElmhurst, IL 60126-5659
Mailing AddressPob 7132960Chicago, IL 60677-4025 · (630) 469-9200
Phone(630) 279-8771
Fax(630) 348-3078
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJuly 25, 2022
Last NPPES UpdateMay 9, 20253 updates tracked since enumeration
NPPES CertifiedMay 9, 2025
✔ NPI 1285360156 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in IL · 209.025564
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
133 E BRUSH HILL RD, Elmhurst, IL 60126
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Other Names 1

Former Name (1)Lauren Mascari

Secondary Practice Location 1

Location 11100 Lake St Ste 230Oak Park, IL 60301-1095 · Phone (331) 221-9000

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

Lauren Partain 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.

PECOS PAC ID2163805151
PECOS Enrollment IDI20220824002346
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Lauren Partain reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Elmhurst Memorial Healthcare
0.2 mi
Multi-Specialty
1200 S YORK ST
Elmhurst, IL 60126
  • Reassigned Medicare billing, Illinois enrollment
  • 240 clinicians in this Medicare group
NPI 1457493454 (331) 221-9000
Dupage Medical Group Ltd
4.8 mi
Multi-Specialty
1100 W 31ST ST, STE 300
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 184 clinicians in this Medicare group
NPI 1801833983 (630) 469-9200
Endeavor Health Medical Group
19 mi
Allergy & Immunology
1000 CENTRAL ST
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1497701882 (847) 570-5235

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
29 services28 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
27 services24 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60126 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

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.

91.35/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.71
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PABLO NICOLAS QUINTANA M.D.
Internal Medicine
133 E BRUSH HILL RD
ELMHURST, IL 60126
Dupage County (331) 221-8952
DANIEL PATRICK SULLIVAN MD
Internal Medicine (Interventional Cardiology)
133 E BRUSH HILL RD, SUITE 202
ELMHURST, IL 60126
Dupage County (630) 782-4050
MICHAEL L COHAN MD
Internal Medicine (Nephrology)
133 E BRUSH HILL RD, SUITE 310
ELMHURST, IL 60126
Dupage County (331) 221-9003
DENISE THERESA IBRAHIM D.O.
Orthopaedic Surgery
133 E BRUSH HILL RD
ELMHURST, IL 60126
Dupage County (630) 501-0630
SIVAKAMI KRISHNAN MD
Family Medicine
133 E BRUSH HILL RD
ELMHURST, IL 60126
Dupage County (630) 279-8771
MARIE A WADAS MD
Internal Medicine (Cardiovascular Disease)
133 E BRUSH HILL RD, SUITE 202
ELMHURST, IL 60126
Dupage County (630) 782-4050
SANDRA ELIZABETH BANDEL APN
Nurse Practitioner (Primary Care)
133 E BRUSH HILL RD
ELMHURST, IL 60126
Dupage County (630) 782-4050
CALEEL MEDICAL GROUP, LLC
Family Medicine
133 E BRUSH HILL RD, SUITE 205
ELMHURST, IL 60126
Dupage County (630) 882-0070

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 Lauren Partain's NPI number?

The NPI number for Lauren Partain is 1285360156. It was assigned to this individual provider in the NPPES registry on July 25, 2022. The provider is also known as Lauren Mascari.

Where is Lauren Partain located?

Lauren Partain practices at 133 E Brush Hill Rd, Elmhurst, IL 60126. The listed phone number is (630) 279-8771.

What is Lauren Partain's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Lauren Partain enrolled in Medicare?

Yes. Lauren Partain 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 Lauren Partain's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Partain reassigns Medicare benefits to 3 organizations: Elmhurst Memorial Healthcare (Elmhurst, IL), Dupage Medical Group Ltd (Downers Grove, IL) and Endeavor Health Medical Group (Evanston, 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 Lauren Partain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lauren Partain was last updated on May 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.