GREAT LAKES PULMONARY & SLEEP ASSOCIATES, INC
NPI 1003096504
Internal Medicine - Pulmonary Disease in Gary, IN

Q: What is Great Lakes Pulmonary & Sleep Associates, Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Active since November 13, 2007

650 GRANT ST STE 7, GARY, IN 46404(219) 882-0255(219) 738-6714 Get Directions Write a Review

NPPES record last updated: July 10, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Great Lakes Pulmonary & Sleep Associates, Inc NPPES

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

GREAT LAKES PULMONARY & SLEEP ASSOCIATES, INC (NPI 1003096504) is a healthcare organization registered as a pulmonary disease in Gary, Indiana and active in the NPI registry since November 2007. The organization lists Olusegun Apata, Physician/owner, as its authorized official.

NPPES Registry Identity

NPI1003096504

Entity TypeOrganization

Primary Taxonomy207RP1001X

Legal Business NameGREAT LAKES PULMONARY & SLEEP ASSOCIATES, INC

Location Address650 GRANT ST STE 7Gary, IN 46404-1551

Mailing AddressPo Box 10068Merrillville, IN 46411-0068 · (219) 882-0255 · Fax (219) 738-6714

Phone(219) 882-0255

Fax(219) 738-6714

Organization SubpartNo

Authorized OfficialOlusegun ApataPhysician/owner · (219) 882-0255

Enumeration DateNovember 13, 2007

Last NPPES UpdateJuly 10, 2012

✔ NPI 1003096504 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in IN · 01064140

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 01064140 (IN)

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License 01064140 (IN)

650 GRANT ST STE 7, Gary, IN 46404

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Other Identifiers 4

Medicaid200881250AIN

Medicare UPINF94947WI

Medicare PIN254540A INDIVIDUALIN

Medicare PIN245540IN

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Great Lakes Pulmonary & Sleep Associates, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 3 clinicians reassign Medicare billing to Great Lakes Pulmonary & Sleep Associates, Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

Olusegun Apata, M.D.

Pulmonary Disease

NPI 1043298961

650 GRANT ST STE 7
Gary, IN 46404

(219) 882-9900

✔ PECOS✔ Accepts MedicareSame address

Vanaja Thotten, NP

Nurse Practitioner

NPI 1083253546

8012 S.CRANDON AVE
Chicago, IL 60617

(773) 356-5000

✔ PECOS15 mi

Nurudeen Afolabi

Nurse Practitioner

NPI 1568096147

4714 S EVANS AVE APT 1S
Chicago, IL 60615

(312) 383-7925

✔ PECOS19 mi

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 Great Lakes Pulmonary & Sleep Associates, Inc's NPI number?

The NPI number for Great Lakes Pulmonary & Sleep Associates, Inc is 1003096504. It was assigned to this organization in the NPPES registry on November 13, 2007.

Where is Great Lakes Pulmonary & Sleep Associates, Inc located?

Great Lakes Pulmonary & Sleep Associates, Inc is located at 650 Grant St Ste 7, Gary, IN 46404. The listed phone number is (219) 882-0255.

What is Great Lakes Pulmonary & Sleep Associates, Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Great Lakes Pulmonary & Sleep Associates, Inc enrolled in Medicare?

Yes. Great Lakes Pulmonary & Sleep Associates, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Great Lakes Pulmonary & Sleep Associates, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Great Lakes Pulmonary & Sleep Associates, Inc, in Nurse Practitioner and Pulmonary Disease. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Great Lakes Pulmonary & Sleep Associates, Inc accept?

Health plans from Anthem Blue Cross and Blue Shield list Great Lakes Pulmonary & Sleep Associates, Inc 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 Great Lakes Pulmonary & Sleep Associates, Inc was last updated on July 10, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.