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DR. R DEVA NATHAN MD
NPI 1700987708
Internal Medicine - Medical Oncology in Chicago, IL

Active since September 25, 2006PECOS Enrolled
3800 N CENTRAL AVE, CHICAGO, IL 60634(773) 205-8415(773) 205-8436 Get Directions Write a Review

NPPES record last updated: April 21, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. R Deva Nathan Md NPPES

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

DR. R DEVA NATHAN MD (NPI 1700987708) is an individual medical oncology provider in Chicago, Illinois, licensed in Illinois (036043661) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700987708
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameDR. R DEVA NATHANCredential: MD
Location Address3800 N CENTRAL AVEChicago, IL 60634-2718
Mailing Address3800 N Central AveChicago, IL 60634-2718
Phone(773) 205-8415
Fax(773) 205-8436
Sole ProprietorNo
Enumeration DateSeptember 25, 2006
Last NPPES UpdateApril 21, 2025
NPPES CertifiedApril 21, 2025
✔ NPI 1700987708 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in IL · 036043661
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036043661 (IL)
Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License 036043661 (IL)
3800 N CENTRAL AVE, Chicago, IL 60634
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Other Identifiers 1

Medicaid036043661IL

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. R Deva Nathan 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 Reassignments

4

Medicare enrollment records show R Deva Nathan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

North Shore Infusion Ltd
8.2 mi
Oncology
1800 SHERMAN AVE, STE 350
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 5 clinicians in this Medicare group
NPI 1528107794 (847) 492-3040
Rockford Health Physicians
66 mi
Multi-Specialty
8201 E RIVERSIDE BLVD
Rockford, IL 61114
  • Reassigned Medicare billing, Illinois enrollment
  • 1,375 clinicians in this Medicare group
NPI 1043242886 (608) 314-2428
Sarah Bush Lincoln Health Center
172 mi
Family Medicine
1000 HEALTH CENTER DR
Mattoon, IL 61938
  • Reassigned Medicare billing, Illinois enrollment
  • 652 clinicians in this Medicare group
NPI 1568581379 (217) 258-2525
Physician Services Corporation Of Southern Illinois Inc.
258 mi
Internal Medicine
4218 LINCOLNSHIRE DR
Mount Vernon, IL 62864
  • Reassigned Medicare billing, Illinois enrollment
  • 296 clinicians in this Medicare group
NPI 1831101807 (618) 899-3600

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 3

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.
34 services31 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
22 services22 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.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60634 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.

Other Providers at the Same Location NPPES 3

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

DR. JOANNA STANKIEWICZ M.D.
Internal Medicine (Hematology & Oncology)
3800 N CENTRAL AVE
CHICAGO, IL 60634
Cook County (773) 205-8415
R DEVA NATHAN MD SC
Internal Medicine (Hematology & Oncology)
3800 N CENTRAL AVE
CHICAGO, IL 60634
Cook County (773) 205-8415
JOANNA STANKIEWICZ MD SC
Specialist
3800 N CENTRAL AVE
CHICAGO, IL 60634
Cook County (773) 205-8415

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 R Deva Nathan's NPI number?

The NPI number for R Deva Nathan is 1700987708. It was assigned to this individual provider in the NPPES registry on September 25, 2006.

Where is R Deva Nathan located?

R Deva Nathan practices at 3800 N Central Ave, Chicago, IL 60634. The listed phone number is (773) 205-8415.

What is R Deva Nathan's specialty?

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

Is R Deva Nathan enrolled in Medicare?

Yes. R Deva Nathan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for R Deva Nathan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), R Deva Nathan reassigns Medicare benefits to 4 organizations: North Shore Infusion Ltd (Evanston, IL), Rockford Health Physicians (Rockford, IL), Sarah Bush Lincoln Health Center (Mattoon, IL) and Physician Services Corporation Of Southern Illinois Inc. (Mount Vernon, IL). Each 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 R Deva Nathan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does R Deva Nathan accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list R Deva Nathan 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 R Deva Nathan was last updated on April 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.