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ROBERT H GELLER, MD SC
NPI 1508977034
Specialist in Elmhurst, IL

Active since August 31, 2006
1200 S YORK STREET, SUITE 4240, ELMHURST, IL 60126(708) 450-0462(708) 632-5602 Get Directions Write a Review

NPPES record last updated: August 3, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Robert H Geller, Md Sc NPPES

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

ROBERT H GELLER, MD SC (NPI 1508977034) is a healthcare organization registered as a specialist in Elmhurst, Illinois and active in the NPI registry since August 2006. The organization lists Jacob A Mathew, Business Office Manager, as its authorized official.

NPPES Registry Identity

NPI1508977034
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameROBERT H GELLER, MD SC
Location Address1200 S YORK STREET, SUITE 4240Elmhurst, IL 60126-5651
Mailing AddressP.o. Box 7230Westchester, IL 60154-7230 · (708) 632-5600 · Fax (708) 632-5602
Phone(708) 450-0462
Fax(708) 632-5602
Organization SubpartNo
Authorized OfficialJacob A MathewBusiness Office Manager · (708) 632-5600
Enumeration DateAugust 31, 2006
Last NPPES UpdateAugust 3, 2023
NPPES CertifiedAugust 3, 2023
✔ NPI 1508977034 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in IL · 036055119
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
1200 S YORK STREET, SUITE 4240, Elmhurst, IL 60126
Open in Google Maps ↗

Other Identifiers 2

Medicaid036055119IL
Other1326068677IL · Npi

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)

Robert H Geller, Md Sc 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 Robert H Geller, MD Sc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Robert Geller, M.D.
General Surgery
NPI 1326068677
1200 S YORK ST STE 4240
Elmhurst, IL 60126
(708) 450-0462
✔ 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 Robert H Geller, MD Sc's NPI number?

The NPI number for Robert H Geller, MD Sc is 1508977034. It was assigned to this organization in the NPPES registry on August 31, 2006.

Where is Robert H Geller, MD Sc located?

Robert H Geller, MD Sc is located at 1200 S York Street, Suite 4240, Elmhurst, IL 60126. The listed phone number is (708) 450-0462.

What is Robert H Geller, MD Sc's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Robert H Geller, MD Sc enrolled in Medicare?

Yes. Robert H Geller, MD Sc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Robert H Geller, MD Sc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Surgery) reassigns their Medicare billing to Robert H Geller, 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.

What insurance does Robert H Geller, MD Sc accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Robert H Geller, MD Sc 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 Robert H Geller, MD Sc was last updated on August 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.