ILLINOIS PROTON CENTER LLC
NPI 1972824142
Clinic/Center - Oncology, Radiation in Warrenville, IL

Active since June 22, 2010

4455 WEAVER PKWY, WARRENVILLE, IL 60555(630) 821-6400(630) 821-6474 Get Directions Write a Review

NPPES record last updated: February 12, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 12, 2025, Feb 6, 2025 (2 updates tracked since 2025).

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About Illinois Proton Center Llc NPPES

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

ILLINOIS PROTON CENTER LLC (NPI 1972824142), doing business as Northwestern Medicine Chicago Proton Center, is a healthcare organization registered as an oncology, radiation in Warrenville, Illinois and active in the NPI registry since June 2010. The organization lists Michael Mullen, Vp, Hospital Revenue Cycle, Nmhc, as its authorized official.

NPPES Registry Identity

NPI1972824142

Entity TypeOrganization

Primary Taxonomy261QX0203X

Legal Business NameILLINOIS PROTON CENTER LLC

Location Address4455 WEAVER PKWYWarrenville, IL 60555-3269

Mailing AddressDept 5777Carol Stream, IL 60122

Phone(630) 821-6400

Fax(630) 821-6474

Organization SubpartNo

Authorized OfficialMichael MullenVp, Hospital Revenue Cycle, Nmhc · (630) 938-6076

Enumeration DateJune 22, 2010

Last NPPES UpdateFebruary 12, 20252 updates tracked since enumeration

NPPES CertifiedFebruary 12, 2025

✔ NPI 1972824142 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Oncology, RadiationAmbulatory Health Care Facilities

Taxonomy Code261QX0203X

4455 WEAVER PKWY, Warrenville, IL 60555

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Other Names 1

Doing Business AsNorthwestern Medicine Chicago Proton Center

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Illinois Proton Center Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

18

Medicare enrollment records show 18 clinicians reassign Medicare billing to Illinois Proton Center LLC, which bills Medicare for the services they deliver. Of these, 7 practice at this address. They are listed nearest first.

Clinicians, nearest first (18)

Adil Akthar, M.D.

Radiation Oncology

NPI 1598175531

4455 WEAVER PKWY
Warrenville, IL 60555

✔ PECOS✔ Accepts MedicareSame address

Neal Andruska, MD, PHD

Radiation Oncology

NPI 1972035798

4455 WEAVER PKWY
Warrenville, IL 60555

✔ PECOS✔ Accepts MedicareSame address

Vinai Gondi, MD

Radiation Oncology

NPI 1457516395

4405 WEAVER PKWY
Warrenville, IL 60555

✔ PECOS✔ Accepts MedicareSame address

Nasiruddin Mohammed

Radiation Oncology

NPI 1912111527

4405 WEAVER PKWY
Warrenville, IL 60555

✔ PECOS✔ Accepts MedicareSame address

Arpi Thukral, MD

Radiation Oncology

NPI 1619032885

4405 WEAVER PKWY
Warrenville, IL 60555

✔ PECOS✔ Accepts MedicareSame address

Douglas Tippin, M.D., PHD

Radiation Oncology

NPI 1013900281

4405 WEAVER PKWY
Warrenville, IL 60555

✔ PECOS✔ Accepts MedicareSame address

Zaid Iftekaruddin, MD

Radiation Oncology

NPI 1437611761

4405 WEAVER PKWY
Warrenville, IL 60555

✔ PECOS✔ Accepts MedicareSame address

Shwetha Manjunath, M.D.

Radiation Oncology

NPI 1497281588

304 RANDALL RD
Geneva, IL 60134

✔ PECOS✔ Accepts Medicare11 mi

Michael Stutz, M.D.

Radiation Oncology

NPI 1649261603

304 RANDALL RD
Geneva, IL 60134

✔ PECOS✔ Accepts Medicare11 mi

Amishi Bajaj, MD

Radiation Oncology

NPI 1932606654

1325 N MEACHAM RD
Schaumburg, IL 60173

✔ PECOS✔ Accepts Medicare18 mi

Michael Gutman, MD

Radiation Oncology

NPI 1326622937

5841 S MARYLAND AVE # MC9006
Chicago, IL 60637

✔ PECOS✔ Accepts Medicare29 mi

Anne Mccall, MD

Radiation Oncology

NPI 1275568453

5841 S MARYLAND AVE
Chicago, IL 60637

✔ PECOS✔ Accepts Medicare29 mi

Radiation Oncology

NPI 1255597167

10 HEALTH SERVICES DR STE 2
Dekalb, IL 60115

✔ PECOS✔ Accepts Medicare31 mi

Santosh Yajnik, M.D.

Radiation Oncology

NPI 1083605067

9200 W WISCONSIN AVE
Milwaukee, WI 53226

✔ PECOS✔ Accepts Medicare85 mi

Daniella Dang, M.D.

Radiation Oncology

NPI 1093006603

2600 KINGS HWY
Shreveport, LA 71103

✔ PECOS✔ Accepts Medicare713 mi

Donald Jenkins, MD

Radiation Oncology

NPI 1518942879

1255 BROAD ST
Clifton, NJ 07013

✔ PECOS✔ Accepts Medicare729 mi

Nguyen Dang, M.D.

Radiation Oncology

NPI 1447493986

608 N ACADIA RD
Thibodaux, LA 70301

✔ PECOS✔ Accepts Medicare842 mi

Stephen Mihalcik, M.D., PH.D.

Radiation Oncology

NPI 1598031205

75 FRANCIS ST
Boston, MA 02115

✔ PECOS✔ Accepts Medicare876 mi

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 18

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.

Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy G6002

Stereoscopic x-ray guidance is a technique used in radiation therapy. It involves taking multiple X-ray images from different angles to create a 3D picture of the area to be treated. This helps accurately pinpoint the exact location for radiation delivery, ensuring the therapy is as effective as possible.

3,858 services189 patients

Complex proton beam radiation treatment 77525

Complex proton beam radiation treatment is a highly precise form of radiation therapy. It uses protons, a type of subatomic particle, to destroy cancer cells. Unlike traditional radiation, it can target a specific area, reducing damage to healthy tissue.

1,551 services72 patients

Intermediate proton beam radiation treatment 77523

Intermediate proton beam radiation treatment is a precise type of radiation therapy. It uses protons instead of X-rays to treat certain types of cancer and other diseases. The protons can be directed to target the disease area with minimal damage to surrounding healthy tissue.

1,301 services90 patients

Simple proton beam radiation treatment with compensation 77522

Proton beam radiation therapy is a type of treatment that uses energy from positively charged particles, called protons. The therapy precisely targets tumors, minimizing damage to healthy tissues. Compensation refers to adjustments made to ensure the correct dose reaches the tumor.

1,019 services43 patients

Continuing radiation therapy consultation per week 77336

Continuing radiation therapy consultation per week involves regular meetings with your healthcare team. These sessions help monitor your progress, manage side effects, and adjust your treatment plan if necessary. It's a key part of ensuring the effectiveness of your radiation therapy.

796 services197 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

533 services192 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

213 services65 patients

High precision radiation therapy planning 77301

High precision radiation therapy planning involves detailed mapping of your body to target cancer cells accurately. Advanced imaging techniques help identify the exact location of the tumor, minimizing harm to healthy tissues. This personalized approach enhances effectiveness and reduces side effects.

187 services173 patients

Injection of biodegradable material next to prostate 55874

This procedure involves the introduction of a biodegradable substance near a gland located in the lower abdomen. This substance helps to create a barrier between the gland and nearby tissues, aiding in the precise delivery of treatment to the intended area.

104 services104 patients

Ct guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

84 services56 patients

Special radiation treatment 77470

Special radiation treatment is a medical procedure that uses high-energy rays to destroy or damage cancer cells. It's a targeted approach that aims to minimize harm to healthy tissues. The treatment duration varies based on individual health conditions.

72 services71 patients

Cranial lesion surgery using radiation over multiple sessions 77373

Cranial lesion surgery using radiation involves targeting abnormal tissue in the brain with high-energy rays. This non-invasive procedure is done over multiple sessions to gradually destroy the lesion without harming healthy tissue. It's a precise, painless process often used when traditional surgery isn't possible.

71 services15 patients

Design and construction of simple radiation treatment device 77332

A simple radiation treatment device is designed and built to target specific areas in your body with high energy rays. This process is carefully planned to ensure that the radiation accurately reaches the area needing treatment, while minimizing exposure to healthy tissues.

39 services39 patients

Special medical radiation therapy consultation 77370

A special medical radiation therapy consultation involves discussing the use of high-energy radiation to treat diseases, primarily cancer. It's a chance to understand the process, potential side effects, and benefits. It is a key step in planning your treatment.

29 services28 patients

Obtaining respiratory data needed to develop the optimal radiation treatment 77293

Obtaining respiratory data is vital for optimal radiation treatment. This involves tracking your breathing patterns to ensure the precise delivery of radiation to the target area, minimizing damage to healthy tissue. It's a non-invasive process and contributes to effective treatment.

23 services23 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

16 services15 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

15 services15 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

15 services14 patients

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 Illinois Proton Center LLC's NPI number?

The NPI number for Illinois Proton Center LLC is 1972824142. It was assigned to this organization in the NPPES registry on June 22, 2010. The provider is doing business as Northwestern Medicine Chicago Proton Center.

Where is Illinois Proton Center LLC located?

Illinois Proton Center LLC is located at 4455 Weaver Pkwy, Warrenville, IL 60555. The listed phone number is (630) 821-6400.

What is Illinois Proton Center LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Oncology, Radiation, with taxonomy code 261QX0203X.

Is Illinois Proton Center LLC enrolled in Medicare?

Yes. Illinois Proton Center LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Illinois Proton Center LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 18 clinicians, all in Radiation Oncology, reassign their Medicare billing to Illinois Proton Center 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. Of these, 7 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Illinois Proton Center LLC was last updated on February 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.

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