CHICAGO SLEEP HEALTH
NPI 1023498730
Psychiatry & Neurology - Sleep Medicine in Chicago, IL

Q: What is Margaret Park MD Sc's NPI number?

The NPI number for Margaret Park MD Sc is 1023498730. It was assigned to this organization in the NPPES registry on June 8, 2015. The provider is doing business as Chicago Sleep Health.

Q: What is Margaret Park MD Sc's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Sleep Medicine, with taxonomy code 2084S0012X.

Active since June 08, 2015

405 N WABASH AVE UNIT 4403, CHICAGO, IL 60611(312) 955-8787(312) 955-8789 Get Directions Write a Review

NPPES record last updated: December 27, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Chicago Sleep Health NPPES

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

CHICAGO SLEEP HEALTH (NPI 1023498730) is a healthcare organization registered as a sleep medicine in Chicago, Illinois and active in the NPI registry since June 2015. The organization lists Margaret Park, President, as its authorized official.

NPPES Registry Identity

NPI1023498730

Entity TypeOrganization

Primary Taxonomy2084S0012X

Legal Business NameMARGARET PARK MD SC

Location Address405 N WABASH AVE UNIT 4403Chicago, IL 60611-3527

Mailing Address405 N Wabash Ave Unit 4403Chicago, IL 60611-3527 · (312) 955-8787

Phone(312) 955-8787

Fax(312) 955-8789

Organization SubpartNo

Authorized OfficialMargaret ParkPresident · (312) 343-4686

Enumeration DateJune 8, 2015

Last NPPES UpdateDecember 27, 2023

NPPES CertifiedDecember 27, 2023

✔ NPI 1023498730 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2084S0012X

License✔ Licensed in IL · 036.113340

Definition

A Psychiatrist or Neurologist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

405 N WABASH AVE UNIT 4403, Chicago, IL 60611

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Other Names 1

Doing Business AsChicago Sleep Health

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chicago Sleep Health is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Chicago Sleep Health, which bills Medicare for the services this clinician delivers.

Clinician (1)

Margaret Park, MD

Neurology

NPI 1396754735

405 N WABASH AVE UNIT 4403
Chicago, IL 60611

(312) 955-8787

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Margaret Park MD Sc's NPI number?

The NPI number for Margaret Park MD Sc is 1023498730. It was assigned to this organization in the NPPES registry on June 8, 2015. The provider is doing business as Chicago Sleep Health.

Where is Margaret Park MD Sc located?

Margaret Park MD Sc is located at 405 N Wabash Ave Unit 4403, Chicago, IL 60611. The listed phone number is (312) 955-8787.

What is Margaret Park MD Sc's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Sleep Medicine, with taxonomy code 2084S0012X.

Is Margaret Park MD Sc enrolled in Medicare?

Yes. Margaret Park MD Sc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Margaret Park MD Sc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Neurology) reassigns their Medicare billing to Margaret Park MD Sc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Margaret Park MD Sc was last updated on December 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.