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NAPERVILLE INTERNIST
NPI 1073695284
Internal Medicine in Naperville, IL

Active since October 19, 2006CLIA 14D0998986 · Waiver
1190 S NAPER BLVD, NAPERVILLE, IL 60540(630) 527-6390(630) 527-6392 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2022, Dec 9, 2021 (2 updates tracked since 2021).

About Naperville Internist NPPES

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

NAPERVILLE INTERNIST (NPI 1073695284) is a healthcare organization registered as an internal medicine in Naperville, Illinois and active in the NPI registry since October 2006. The organization holds a CLIA Waiver certificate valid through April 29, 2028 and lists Sandra Lovitt, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1073695284
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameRAKESH MARWAHA M.D. S.C.
Location Address1190 S NAPER BLVDNaperville, IL 60540-8331
Mailing AddressPo Box 6010Woodridge, IL 60517-7010 · (630) 527-6390 · Fax (630) 527-6392
Phone(630) 527-6390
Fax(630) 527-6392
Organization SubpartNo
Authorized OfficialSandra LovittOffice Manager · (630) 527-6390
Enumeration DateOctober 19, 2006
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
NPPES CertifiedDecember 9, 2021
✔ NPI 1073695284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1190 S NAPER BLVD, Naperville, IL 60540
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Other Names 1

Doing Business AsNaperville Internist

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Naperville Internist is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by January 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateIllinoisEnrollment IDO20040318001182Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Naperville Internist, which bills Medicare for the services they deliver. Of these, 6 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Sandeep Kalra, M.D.
Internal Medicine
NPI 1376622092
640 S WASHINGTON ST STE 380
Naperville, IL 60540
(630) 527-6390
✔ PECOS✔ Accepts Medicare2.0 mi
Naila Khurshid, M.D.
Internal Medicine
NPI 1487736799
640 S WASHINGTON ST STE 380
Naperville, IL 60540
(630) 527-6390
✔ PECOS✔ Accepts Medicare2.0 mi
Rachit Marwaha, M.D
Internal Medicine
NPI 1285168526
640 S WASHINGTON ST STE 380
Naperville, IL 60540
(630) 527-6390
✔ PECOS✔ Accepts Medicare2.0 mi
Rakesh Marwaha, M.D.
Internal Medicine
NPI 1164539094
640 S WASHINGTON ST STE 380
Naperville, IL 60540
(630) 527-6390
✔ PECOS✔ Accepts Medicare2.0 mi
Kriti Puthenpurakal, DPM
Podiatry
NPI 1710319959
640 S WASHINGTON ST STE 380
Naperville, IL 60540
(630) 272-6441
✔ PECOS2.0 mi
Iva Patel, APRN, CNP
Nurse Practitioner
NPI 1619715281
1800 N MAIN ST STE 219
Wheaton, IL 60187
(630) 614-4960
✔ PECOS9.1 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D0998986

Naperville Internists Ltd · Naperville, IL
Active · expires Apr 29, 2028
CLIA Number14D0998986
Laboratory TypePhysician Office
Certificate Effective DateApril 30, 2026
Certificate Expiration DateApril 29, 2028
Laboratory DirectorRakejh Marwaha
Laboratory Phone(630) 527-6390
Laboratory LocationNaperville Internists Ltd1190 S Naper Blvd, Naperville, IL 60540
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Rakesh Marwaha M.D. S.C.'s NPI number?

The NPI number for Rakesh Marwaha M.D. S.C. is 1073695284. It was assigned to this organization in the NPPES registry on October 19, 2006. The provider is doing business as Naperville Internist.

Where is Rakesh Marwaha M.D. S.C. located?

Rakesh Marwaha M.D. S.C. is located at 1190 S Naper Blvd, Naperville, IL 60540. The listed phone number is (630) 527-6390.

What is Rakesh Marwaha M.D. S.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Rakesh Marwaha M.D. S.C. enrolled in Medicare?

Yes. Rakesh Marwaha M.D. S.C. is registered in the Medicare PECOS enrollment system.

When is Rakesh Marwaha M.D. S.C.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Illinois, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Rakesh Marwaha M.D. S.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Rakesh Marwaha M.D. S.C.. 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. The largest specialties are Internal Medicine (4), Nurse Practitioner (1) and Podiatry (1). Of these, 6 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Rakesh Marwaha M.D. S.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D0998986) is associated with this NPI, valid through April 29, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Rakesh Marwaha M.D. S.C. accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Rakesh Marwaha M.D. S.C. 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 Rakesh Marwaha M.D. S.C. was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.