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DR. JENNY K HASLER M.D.
NPI 1760476550
Pediatrics in Chicago, IL

Active since September 07, 2005PECOS Enrolled
2300 N CHILDRENS PLZ, OUTREACH PHYSICIAN SERVICES, CHICAGO, IL 60614(773) 880-6903(773) 880-3068 Get Directions Write a Review

NPPES record last updated: October 30, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Jenny K Hasler M.d. NPPES

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

DR. JENNY K HASLER M.D. (NPI 1760476550) is an individual pediatrics provider in Chicago, Illinois, licensed in Illinois (036-097035) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1760476550
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. JENNY K HASLERCredential: M.D.
Location Address2300 N CHILDRENS PLZ, OUTREACH PHYSICIAN SERVICESChicago, IL 60614-3363
Mailing Address2300 N Childrens Plz, Box 152Chicago, IL 60614-3363 · (773) 880-6903 · Fax (773) 880-3068
Phone(773) 880-6903
Fax(773) 880-3068
Sole ProprietorNo
Enumeration DateSeptember 7, 2005
Last NPPES UpdateOctober 30, 2020
NPPES CertifiedOctober 30, 2020
✔ NPI 1760476550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 036-097035
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.
2300 N CHILDRENS PLZ, Chicago, IL 60614
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Other Names 1

Former Name (1)Dr. Jenny N Koo M.d.

Other Identifiers 1

Medicaid036097035IL

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jenny K Hasler 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 Jenny Hasler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Swedish Covenant Management Services, Inc.
4.4 mi
Obstetrics & Gynecology
5140 N CALIFORNIA AVE
Chicago, IL 60625
  • Reassigned Medicare billing, Illinois enrollment
  • 350 clinicians in this Medicare group
NPI 1760432348 (847) 570-2040
Endeavor Health Medical Group
9.8 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60614 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.

DR. JEANNINE PICCINICH M.D.
Pediatrics
2300 N CHILDRENS PLZ, OUTREACH PHYSICIAN SERVICES
CHICAGO, IL 60614
Cook County (773) 880-6903
DR. MAYSAN ALSHAAR M.D.
Pediatrics
2300 N CHILDRENS PLZ, OUTREACH PHYSICIAN SERVICES
CHICAGO, IL 60614
Cook County (773) 880-6903
MRS. HEATHER MARIE HOGAN MA, CCC-SLP
Speech-Language Pathologist
2300 N CHILDRENS PLZ, BOX 76
CHICAGO, IL 60614
Cook County (773) 880-4441
MRS. DEBORAH BISHOP JEFFERSON APN-CNP
Nurse Practitioner
2300 N CHILDRENS PLZ, DIVISION OF CARDIOLOGY
CHICAGO, IL 60614
Cook County (773) 880-6957
MRS. LESLIE ANN SONDEEN OPILA RN/APN/NP
Nurse Practitioner (Pediatrics)
2300 N CHILDRENS PLZ
CHICAGO, IL 60614
Cook County (773) 880-4929
DR. TAMAR BEN-AMI M.D.
Radiology (Diagnostic Radiology)
2300 N CHILDRENS PLZ, RADIOLOGY
CHICAGO, IL 60614
Cook County (773) 880-4000
MS. ANN MARIE SIMONELLI APN/CNP
Nurse Practitioner (Neonatal)
2300 N CHILDRENS PLZ
CHICAGO, IL 60614
Cook County (773) 880-4000
TORD ALDEN MD
Neurological Surgery
2300 N CHILDRENS PLZ
CHICAGO, IL 60614
Cook County (773) 880-4000

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 Jenny Hasler's NPI number?

The NPI number for Jenny Hasler is 1760476550. It was assigned to this individual provider in the NPPES registry on September 7, 2005. The provider is also known as Dr. Jenny N Koo M.D..

Where is Jenny Hasler located?

Jenny Hasler practices at 2300 N Childrens Plz Outreach Physician Services, Chicago, IL 60614. The listed phone number is (773) 880-6903.

What is Jenny Hasler's specialty?

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

Is Jenny Hasler enrolled in Medicare?

Yes. Jenny Hasler is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Jenny Hasler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jenny Hasler reassigns Medicare benefits to 2 organizations: Swedish Covenant Management Services, Inc. (Chicago, 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 Jenny Hasler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jenny Hasler accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Jenny Hasler 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 Jenny Hasler was last updated on October 30, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.