ROBERT DE WILTON MARSH MD
NPI 1174564116
Internal Medicine - Medical Oncology in Evanston, IL

Q: What is Robert Marsh's NPI number?

The NPI number for Robert Marsh is 1174564116. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Q: What is Robert Marsh's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for Robert Marsh was last updated on February 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 June 09, 2006PECOS Enrolled

93.08/100

CMS Quality Rating

2650 RIDGE AVE, KELLOGG CANCER CENTER, EVANSTON, IL 60201(847) 570-2112(847) 570-1041 Get Directions Write a Review

NPPES record last updated: February 12, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 12, 2021, Oct 21, 2019 (2 updates tracked since 2019).

On this page

About Robert De Wilton Marsh Md NPPES

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

ROBERT DE WILTON MARSH MD (NPI 1174564116) is an individual medical oncology provider in Evanston, Illinois, licensed in Illinois (036061670) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174564116

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameROBERT DE WILTON MARSHCredential: MD

Location Address2650 RIDGE AVE, KELLOGG CANCER CENTEREvanston, IL 60201

Mailing Address2650 Ridge Ave, Kellogg Cancer CenterEvanston, IL 60201-1718 · (847) 570-2112 · Fax (847) 570-1041

Phone(847) 570-2112

Fax(847) 570-1041

Sole ProprietorNo

Enumeration DateJune 9, 2006

Last NPPES UpdateFebruary 12, 20212 updates tracked since enumeration

NPPES CertifiedFebruary 12, 2021

✔ NPI 1174564116 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in IL · 036061670

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

2650 RIDGE AVE, Evanston, IL 60201

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert De Wilton Marsh Md 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 Marsh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Endeavor Health Medical Group

Same address

Anesthesiology

2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
Evanston, IL 60201

Reassigned Medicare billing, Illinois enrollment
4,841 clinicians in this Medicare group

NPI 1265695944 (847) 570-2760

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

168 services45 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

158 services107 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60201 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

$183.39 typical visit price

range $60.08 – $183.39

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

Most-billed visit code 99205

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

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

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.08/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

80.79

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Capecitabine, oral, 500 mg J8521

Treatment-Treatment - Miscellaneous · category RX029N

2 suppliers15 claims950 services$0.59 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

2 suppliers13 claims13 services$17.53 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. THOMAS LEE CIBULL M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201

Cook County (847) 570-2040

LAUREN ANDERSON MD

Hospitalist

2650 RIDGE AVE
EVANSTON, IL 60201

Cook County (847) 570-1027

DR. DANIEL K. WEST MD

Radiology (Diagnostic Radiology)

2650 RIDGE AVE, DEPARTMENT OF RADIOLOGY, G507
EVANSTON, IL 60201

Cook County (847) 570-2475

JOEL BERNSTEIN M.D.

Radiology (Diagnostic Radiology)

2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201

Cook County (847) 570-1206

MATTHEW R. SHERWOOD MD

Internal Medicine

2650 RIDGE AVE, DIVISION OF INTERNAL MEDICINE RM 4324
EVANSTON, IL 60201

Cook County (847) 570-1010

MICHAEL T. GILLAM M.D.

Emergency Medicine

2650 RIDGE AVE, EMERGENCY MEDICINE RM G909
EVANSTON, IL 60201

Cook County (847) 570-2114

MARLENE ANGELICO CNP

Nurse Practitioner (Acute Care)

2650 RIDGE AVE, EMERGENCY MEDICINE, RM G903C
EVANSTON, IL 60201

Cook County (847) 570-1355

MINA KEROLOS MD

Hospitalist

2650 RIDGE AVE
EVANSTON, IL 60201

Cook County (847) 570-1010

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 Marsh's NPI number?

The NPI number for Robert Marsh is 1174564116. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Where is Robert Marsh located?

Robert Marsh practices at 2650 Ridge Ave Kellogg Cancer Center, Evanston, IL 60201. The listed phone number is (847) 570-2112.

What is Robert Marsh's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Robert Marsh enrolled in Medicare?

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

Which organization bills Medicare for Robert Marsh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Marsh reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, 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 Marsh'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 Marsh was last updated on February 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.