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SPECIALIZED MEDICAL CARE, LLC
NPI 1427350776
Internal Medicine - Endocrinology, Diabetes & Metabolism in Chicago, IL

Active since November 18, 2010CLIA 14D2093198 · Waiver
211 E CHICAGO AVE, SUITE 1050, CHICAGO, IL 60611(312) 337-2288(312) 337-2288 Get Directions Write a Review

NPPES record last updated: November 10, 2011. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Specialized Medical Care, Llc NPPES

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

SPECIALIZED MEDICAL CARE, LLC (NPI 1427350776) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Chicago, Illinois and active in the NPI registry since November 2010. The organization holds a CLIA Waiver certificate valid through March 22, 2027 and lists David S Oyer, Owner, as its authorized official.

NPPES Registry Identity

NPI1427350776
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameSPECIALIZED MEDICAL CARE, LLC
Location Address211 E CHICAGO AVE, SUITE 1050Chicago, IL 60611-2637
Mailing Address211 E Chicago Ave, Suite 1050Chicago, IL 60611-2637 · (630) 718-0200
Phone(312) 337-2288
Fax(312) 337-2288
Organization SubpartNo
Authorized OfficialDavid S OyerOwner · (630) 718-0200
Enumeration DateNovember 18, 2010
Last NPPES UpdateNovember 10, 2011
✔ NPI 1427350776 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in IL · 036050957
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
211 E CHICAGO AVE, Chicago, IL 60611
Open in Google Maps ↗

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)

Specialized Medical Care, Llc 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 Specialized Medical Care, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

David Oyer, M.D.
Endocrinology
NPI 1134226467
211 E CHICAGO AVE STE 1700
Chicago, IL 60611
(312) 944-6677
✔ 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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D2093198

Specialized Medical Care LLC · Chicago, IL
Active · expires Mar 22, 2027
CLIA Number14D2093198
Laboratory TypePhysician Office
Certificate Effective DateMarch 23, 2025
Certificate Expiration DateMarch 22, 2027
Laboratory DirectorDavid Oyer MD
Laboratory Phone(312) 252-9999
Laboratory LocationSpecialized Medical Care LLC211 E Chicago Ave, Ste 1700, Chicago, IL 60611
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

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 Specialized Medical Care, LLC's NPI number?

The NPI number for Specialized Medical Care, LLC is 1427350776. It was assigned to this organization in the NPPES registry on November 18, 2010.

Where is Specialized Medical Care, LLC located?

Specialized Medical Care, LLC is located at 211 E Chicago Ave Suite 1050, Chicago, IL 60611. The listed phone number is (312) 337-2288.

What is Specialized Medical Care, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Specialized Medical Care, LLC enrolled in Medicare?

Yes. Specialized Medical Care, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Specialized Medical Care, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Endocrinology) reassigns their Medicare billing to Specialized Medical Care, LLC. 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.

Does Specialized Medical Care, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D2093198) is associated with this NPI, valid through March 22, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Specialized Medical Care, LLC was last updated on November 10, 2011. 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.