ANN MARIE THOMAS
NPI 1699193490
Pediatrics in Evanston, IL

Q: What is Ann Thomas's NPI number?

The NPI number for Ann Thomas is 1699193490. It was assigned to this individual provider in the NPPES registry on March 31, 2014.

Q: What is Ann Thomas's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ann Thomas was last updated on April 26, 2021. 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.

Active since March 31, 2014PECOS Enrolled

2650 RIDGE AVE., PEDIATRIC HOSPITALISTS, EVANSTON, IL 60201(847) 564-2891 Get Directions Write a Review

NPPES record last updated: April 26, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 26, 2021, Apr 10, 2017 (2 updates tracked since 2017).

On this page

About Ann Marie Thomas NPPES

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

ANN MARIE THOMAS (NPI 1699193490) is an individual pediatrics provider in Evanston, Illinois, licensed in Illinois (036.142679) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699193490

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameANN MARIE THOMAS

Location Address2650 RIDGE AVE., PEDIATRIC HOSPITALISTSEvanston, IL 60201-1718

Mailing Address2650 Ridge Ave., Pediatric HospitalistsEvanston, IL 60201-1718 · (847) 570-2833 · Fax (847) 570-1510

Phone(847) 564-2891

Sole ProprietorNo

Enumeration DateMarch 31, 2014

Last NPPES UpdateApril 26, 20212 updates tracked since enumeration

NPPES CertifiedMarch 31, 2021

✔ NPI 1699193490 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in IL · 036.142679

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.

2650 RIDGE AVE., Evanston, IL 60201

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ann Marie Thomas 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

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

Endeavor Health Medical Group

Same address

Anesthesiology

2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
Evanston, IL 60201

Reassigned Medicare billing, Illinois enrollment
4,841 clinicians in this Medicare group

NPI 1265695944 (847) 570-2760

Swedish Covenant Management Services, Inc

6.3 mi

Emergency Medicine

5140 N CALIFORNIA AVE
Chicago, IL 60625

Reassigned Medicare billing, Illinois enrollment
350 clinicians in this Medicare group

NPI 1962049551 (847) 570-2040

Lutheran General Hospital

8.6 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 60201 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.

JAMES FRANCIS KELLY DO

Hospitalist

2650 RIDGE AVE., IM HOSPITALISTS STE 4206
EVANSTON, IL 60201

Cook County (847) 570-1010

DR. MARY TILLEY JENKINS VOGEL MD

Obstetrics & Gynecology (Gynecologic Oncology)

2650 RIDGE AVE., KELLOGG CANCER CENTER
EVANSTON, IL 60201

Cook County (847) 570-2639

SUNITHA CHITRA SURESH MD

Obstetrics & Gynecology (Maternal & Fetal Medicine)

2650 RIDGE AVE., SUITE 1420
EVANSTON, IL 60201

Cook County (847) 570-2860

BHAVIK KHAJURIA

Radiology (Diagnostic Radiology)

2650 RIDGE AVE., DEPT. OF RADIOLOGY
EVANSTON, IL 60201

Cook County (847) 570-2477

WAJDEY NESHEIWAT PA-C

Physician Assistant (Surgical)

2650 RIDGE AVE., DEPT. OF SURGERY WALGREEN 2507
EVANSTON, IL 60201

Cook County (847) 570-2560

AYMAN NAJIB MD

Hospitalist

2650 RIDGE AVE., IM HOSPITALISTS STE 4206
EVANSTON, IL 60201

Cook County (847) 570-1010

MATTHEW JOSEPH SADLOWSKY APN-CRNA

Nurse Anesthetist, Certified Registered

2650 RIDGE AVE., DEPARTMENT OF ANESTHESIA
EVANSTON, IL 60201

Cook County (847) 570-2760

KYLE PETTY MD

Anesthesiology

2650 RIDGE AVE., DEPT. OF ANESTHESIA
EVANSTON, IL 60201

Cook County (847) 570-2760

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 Thomas's NPI number?

The NPI number for Ann Thomas is 1699193490. It was assigned to this individual provider in the NPPES registry on March 31, 2014.

Where is Ann Thomas located?

Ann Thomas practices at 2650 Ridge Ave. Pediatric Hospitalists, Evanston, IL 60201. The listed phone number is (847) 564-2891.

What is Ann Thomas's specialty?

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

Is Ann Thomas enrolled in Medicare?

Yes. Ann Thomas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ann Thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann Thomas reassigns Medicare benefits to 3 organizations: Endeavor Health Medical Group (Evanston, IL), Swedish Covenant Management Services, Inc (Chicago, IL) and Lutheran General Hospital (Park Ridge, 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 Ann Thomas'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 Thomas was last updated on April 26, 2021. 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.