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EMILY CHATSKIS MD
NPI 1790771434
Internal Medicine in Chicago, IL

Active since September 27, 2005PECOS Enrolled
5327 N SHERIDAN RD, STE D, CHICAGO, IL 60640(773) 275-8042(773) 275-1910 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Emily Chatskis Md NPPES

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

EMILY CHATSKIS MD (NPI 1790771434) is an individual internal medicine provider in Chicago, Illinois and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790771434
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameEMILY CHATSKISCredential: MD
Location Address5327 N SHERIDAN RD, STE DChicago, IL 60640-2531
Mailing Address2592 Violet StGlenview, IL 60026-8033 · (847) 657-0053 · Fax (773) 275-1910
Phone(773) 275-8042
Fax(773) 275-1910
Sole ProprietorNo
Enumeration DateSeptember 27, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1790771434 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5327 N SHERIDAN RD, Chicago, IL 60640
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Other Identifiers 2

Other9049076Phcs
Other01626778Bcbs

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Emily Chatskis Md 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 Emily Chatskis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Thompson Medical Incorporated
1.0 mi
Primary Care
4564 N BROADWAY ST
Chicago, IL 60640
  • Reassigned Medicare billing, Illinois enrollment
  • 2 clinicians in this Medicare group
NPI 1356814503 (773) 271-9700

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 60640 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
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 4

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

SIGLIN MEDICAL ASSOCIATES, LTD
Internal Medicine
5327 N SHERIDAN RD, SUITE A
CHICAGO, IL 60640
Cook County (773) 989-1111
REGENCY HEALTH & PROFESSIONALS PLLC
Nurse Practitioner
5327 N SHERIDAN RD
CHICAGO, IL 60640
Cook County (833) 221-4169
MARTIN GOULD SIGLIN M.D.
Internal Medicine
5327 N SHERIDAN RD, SUITE A
CHICAGO, IL 60640
Cook County (773) 989-1111
DR. DEIRDRE L. TANNEN PSY.D.
Psychologist (Clinical)
5327 N SHERIDAN RD, SUITE A
CHICAGO, IL 60640
Cook County (773) 989-1111

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 Emily Chatskis's NPI number?

The NPI number for Emily Chatskis is 1790771434. It was assigned to this individual provider in the NPPES registry on September 27, 2005.

Where is Emily Chatskis located?

Emily Chatskis practices at 5327 N Sheridan Rd Ste D, Chicago, IL 60640. The listed phone number is (773) 275-8042.

What is Emily Chatskis's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Emily Chatskis enrolled in Medicare?

Yes. Emily Chatskis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Emily Chatskis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Emily Chatskis reassigns Medicare benefits to Thompson Medical Incorporated (Chicago, 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 Emily Chatskis'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 Emily Chatskis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.