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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ANN MARIE HOUSER D.O.
NPI 1356518658
Pediatrics in Barrington, IL

Active since May 15, 2008PECOS Enrolled
450 W HIGHWAY 22, BARRINGTON, IL 60010(847) 842-4120(847) 842-4421 Get Directions Write a Review

NPPES record last updated: October 26, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 26, 2026, Mar 17, 2023 (2 updates tracked since 2023).

About Dr. Ann Marie Houser D.o. NPPES

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

DR. ANN MARIE HOUSER D.O. (NPI 1356518658) is an individual pediatrics provider in Barrington, Illinois, licensed in Illinois (036119756) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS and maintains a secondary practice location in Park Ridge.

NPPES Registry Identity

NPI1356518658
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. ANN MARIE HOUSERCredential: D.O.
Location Address450 W HIGHWAY 22Barrington, IL 60010-1919
Mailing Address29373 Network PlChicago, IL 60673-1143 · (847) 390-5900
Phone(847) 842-4120
Fax(847) 842-4421
Sole ProprietorNo
Enumeration DateMay 15, 2008
Last NPPES UpdateOctober 26, 20262 updates tracked since enumeration
NPPES CertifiedOctober 26, 2026
✔ NPI 1356518658 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 036119756
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.
450 W HIGHWAY 22, Barrington, IL 60010
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Secondary Practice Location 1

Location 11775 Dempster StPark Ridge, IL 60068-1143 · Phone (847) 723-6993

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ann Marie Houser D.o. 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 Reassignment

Medicare enrollment records show Ann Marie Houser reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lutheran General Hospital
18 mi
Cardiovascular Disease
1775 DEMPSTER ST
Park Ridge, IL 60068
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1801809306 (847) 723-2210

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 60010 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.

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.

ROBERT CARRARA
Dietitian, Registered
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 842-4349
MRS. CAROL LYNN GARDNER OTRL
Occupational Therapist
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 842-4418
RAVNEET KAUR GILL MPH, MD
Family Medicine (Hospice and Palliative Medicine)
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 842-4002
MICHAEL G BRAUN MD
Emergency Medicine (Emergency Medical Services)
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 381-9600
MR. BRANDON MICHAEL OTTERSON RN
Registered Nurse
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 381-9600
MARK D THOMPSON MD
Emergency Medicine
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 381-9600
DR. LAURA INVERARITY D.O.
Anesthesiology
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 381-9600
PUJA MEHROTRA MD
Pediatrics
450 W HIGHWAY 22
BARRINGTON, IL 60010
Cook County (847) 842-4120

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 Ann Marie Houser's NPI number?

The NPI number for Ann Marie Houser is 1356518658. It was assigned to this individual provider in the NPPES registry on May 15, 2008.

Where is Ann Marie Houser located?

Ann Marie Houser practices at 450 W Highway 22, Barrington, IL 60010. The listed phone number is (847) 842-4120.

What is Ann Marie Houser's specialty?

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

Is Ann Marie Houser enrolled in Medicare?

Yes. Ann Marie Houser is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ann Marie Houser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann Marie Houser reassigns Medicare benefits to Lutheran General Hospital (Park Ridge, IL). The 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 Ann Marie Houser'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 Ann Marie Houser was last updated on October 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.