DR. ROBERT G. KOSS M.D.
NPI 1821078759
Obstetrics & Gynecology in Park Ridge, IL

Q: What is Robert Koss's NPI number?

The NPI number for Robert Koss is 1821078759. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Q: What is Robert Koss's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Robert Koss was last updated on December 5, 2019. 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.

Active since January 18, 2006PECOS Enrolled

1875 DEMPSTER ST, SUITE 465, PARK RIDGE, IL 60068(847) 825-1100(847) 825-0994 Get Directions Write a Review

NPPES record last updated: December 5, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Robert G. Koss M.d. NPPES

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

DR. ROBERT G. KOSS M.D. (NPI 1821078759) is an individual obstetrics & gynecology provider in Park Ridge, Illinois, licensed in Illinois (036.071750) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821078759

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameDR. ROBERT G. KOSSCredential: M.D.

Location Address1875 DEMPSTER ST, SUITE 465Park Ridge, IL 60068-1186

Mailing Address1875 Dempster St, Suite 465Park Ridge, IL 60068-1186 · (847) 825-1100 · Fax (847) 825-0994

Phone(847) 825-1100

Fax(847) 825-0994

Sole ProprietorYes

Enumeration DateJanuary 18, 2006

Last NPPES UpdateDecember 5, 2019

✔ NPI 1821078759 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in IL · 036.071750

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

1875 DEMPSTER ST, Park Ridge, IL 60068

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Other Identifiers 1

Medicaid036071750IL

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, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert G. Koss M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Robert Koss reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lutheran General Hospital

0.1 mi

Cardiovascular Disease

1775 DEMPSTER ST
Park Ridge, IL 60068

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Advocate Health And Hospitals Corporation
4,870 clinicians in this Medicare group

NPI 1801809306 (847) 723-2210

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60068 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMY MINER APN-CNP

Nurse Practitioner (Family)

1875 DEMPSTER ST
PARK RIDGE, IL 60068

Cook County (844) 725-5238

DR. MANOJ SHAH MD

Surgery

1875 DEMPSTER ST, SUITE 280
PARK RIDGE, IL 60068

Cook County (847) 318-9071

DR. MICHAEL LAYLAND MD

Otolaryngology (Otolaryngology/Facial Plastic Surgery)

1875 DEMPSTER ST, STE 301
PARK RIDGE, IL 60068

Cook County (847) 685-1000

BRIAN PETER MCCULLOCH M.D.

Obstetrics & Gynecology (Maternal & Fetal Medicine)

1875 DEMPSTER ST, SUITE 325
PARK RIDGE, IL 60068

Cook County (847) 723-8610

DR. DAVID P TOJO MD

Otolaryngology (Otolaryngology/Facial Plastic Surgery)

1875 DEMPSTER ST, STE 301
PARK RIDGE, IL 60068

Cook County (847) 685-1000

ANDREA MAGYAR GADSON MPT

Physical Therapist (Sports)

1875 DEMPSTER ST
PARK RIDGE, IL 60068

Cook County (847) 723-7856

MR. JAN R DELARIMAN O.T.

Occupational Therapist (Hand)

1875 DEMPSTER ST, SUITE G10
PARK RIDGE, IL 60068

Cook County (847) 723-7059

ILLINOIS UROGYNECOLOGY, LTD.

Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)

1875 DEMPSTER ST, SUITE 665
PARK RIDGE, IL 60068

Cook County (847) 825-1590

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 Koss's NPI number?

The NPI number for Robert Koss is 1821078759. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Where is Robert Koss located?

Robert Koss practices at 1875 Dempster St Suite 465, Park Ridge, IL 60068. The listed phone number is (847) 825-1100.

What is Robert Koss's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Robert Koss enrolled in Medicare?

Yes. Robert Koss is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Robert Koss's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Koss reassigns Medicare benefits to Lutheran General Hospital (Park Ridge, IL). The 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 Robert Koss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Robert Koss was last updated on December 5, 2019. 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.