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GARY WIESMAN MD. LTD
NPI 1215180757
Otolaryngology - Otolaryngology/Facial Plastic Surgery in Chicago, IL

Active since October 28, 2008
712 N DEARBORN ST, CHICAGO, IL 60654(312) 796-5550(312) 981-1292 Get Directions Write a Review

NPPES record last updated: April 10, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gary Wiesman Md. Ltd NPPES

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

GARY WIESMAN MD. LTD (NPI 1215180757) is a healthcare organization registered as an otolaryngology/facial plastic surgery in Chicago, Illinois and active in the NPI registry since October 2008. The organization lists Gary G Wiesman, President, as its authorized official.

NPPES Registry Identity

NPI1215180757
Entity TypeOrganization
Primary Taxonomy207YX0905X
Legal Business NameGARY WIESMAN MD. LTD
Location Address712 N DEARBORN STChicago, IL 60654-3846
Mailing Address712 N Dearborn StChicago, IL 60654-3846 · (312) 796-5550 · Fax (312) 981-1292
Phone(312) 796-5550
Fax(312) 981-1292
Organization SubpartNo
Authorized OfficialGary G WiesmanPresident · (312) 796-5550
Enumeration DateOctober 28, 2008
Last NPPES UpdateApril 10, 2020
NPPES CertifiedApril 10, 2020
✔ NPI 1215180757 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngology · Otolaryngology/Facial Plastic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207YX0905X
License✔ Licensed in IL · 036042623
Definition
An otolaryngologist who specializes in the diagnosis and surgical treatment of head and neck conditions.
712 N DEARBORN ST, Chicago, IL 60654
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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.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)

Gary Wiesman Md. Ltd 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 Gary Wiesman MD. Ltd, which bills Medicare for the services this clinician delivers.

Clinician (1)

Gary Wiesman, MD
Otolaryngology
NPI 1821191404
712 N DEARBORN ST
Chicago, IL 60654
(312) 796-5550
✔ 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 Gary Wiesman MD. Ltd's NPI number?

The NPI number for Gary Wiesman MD. Ltd is 1215180757. It was assigned to this organization in the NPPES registry on October 28, 2008.

Where is Gary Wiesman MD. Ltd located?

Gary Wiesman MD. Ltd is located at 712 N Dearborn St, Chicago, IL 60654. The listed phone number is (312) 796-5550.

What is Gary Wiesman MD. Ltd's specialty?

The primary specialty registered for this NPI is Otolaryngology, specializing in Otolaryngology/Facial Plastic Surgery, with taxonomy code 207YX0905X.

Is Gary Wiesman MD. Ltd enrolled in Medicare?

Yes. Gary Wiesman MD. Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gary Wiesman MD. Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Otolaryngology) reassigns their Medicare billing to Gary Wiesman MD. Ltd. 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.

What insurance does Gary Wiesman MD. Ltd accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Gary Wiesman MD. Ltd 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 Gary Wiesman MD. Ltd was last updated on April 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.