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LAUREN TEPFER ASTRUG M.D.
NPI 1780950386
Pediatrics in Chicago, IL

Active since March 28, 2012PECOS Enrolled
836 W WELLINGTON AVE STE 3604, CHICAGO, IL 60657(773) 296-5435 Get Directions Write a Review

NPPES record last updated: September 5, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 5, 2025, May 18, 2022, Oct 25, 2020 and 3 more (6 updates tracked since 2017).

About Lauren Tepfer Astrug M.d. NPPES

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

LAUREN TEPFER ASTRUG M.D. (NPI 1780950386) is an individual pediatrics provider in Chicago, Illinois, licensed in Illinois (036.137815) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1780950386
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameLAUREN TEPFER ASTRUGCredential: M.D.
Location Address836 W WELLINGTON AVE STE 3604Chicago, IL 60657
Mailing Address836 W Wellington Ave Ste 3604Chicago, IL 60657-5147 · (773) 296-5435
Phone(773) 296-5435
Sole ProprietorYes
Enumeration DateMarch 28, 2012
Last NPPES UpdateSeptember 5, 20256 updates tracked since enumeration
NPPES CertifiedSeptember 5, 2025
✔ NPI 1780950386 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 036.137815
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedPediatrics · Neonatal-Perinatal MedicineTaxonomy 2080N0001X · License 036137815 (IL)
Also ListedHospitalistTaxonomy 208M00000X · License 036137815 (IL)
836 W WELLINGTON AVE STE 3604, Chicago, IL 60657
Open in Google Maps ↗

Secondary Practice Locations 2

Location 15841 S Maryland Ave # Mc6054Chicago, IL 60637-1443 · Phone (773) 702-6176
Location 21555 Barrington Rd, 1st FLHoffman Estates, IL 60169-6016 · Phone (224) 299-4222

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lauren Tepfer Astrug M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Lauren Astrug reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Endeavor Health Medical Group
8.9 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
Bonaventure Medical Foundation, LLC
19 mi
Family Medicine
701 BIESTERFIELD RD UNIT 4D
Elk Grove Village, IL 60007
  • Reassigned Medicare billing, Illinois enrollment
  • 281 clinicians in this Medicare group
NPI 1588775647 (855) 692-6482

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 60657 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.

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 Astrug's NPI number?

The NPI number for Lauren Astrug is 1780950386. It was assigned to this individual provider in the NPPES registry on March 28, 2012.

Where is Lauren Astrug located?

Lauren Astrug practices at 836 W Wellington Ave Ste 3604, Chicago, IL 60657. The listed phone number is (773) 296-5435.

What is Lauren Astrug's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Lauren Astrug enrolled in Medicare?

Yes. Lauren Astrug is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Lauren Astrug's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Astrug reassigns Medicare benefits to 2 organizations: Endeavor Health Medical Group (Evanston, IL) and Bonaventure Medical Foundation, LLC (Elk Grove Village, 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 Astrug's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lauren Astrug accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Lauren Astrug 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 Lauren Astrug was last updated on September 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.