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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SHOBHA MAHADEVAN M.D.
NPI 1821082231
Internal Medicine in Dekalb, IL

Active since August 31, 2005PECOS Enrolled
HEALTH SERVICES, NORTHERN ILLINOIS UNIVERSITY, WIRTZ DRIVE, DEKALB, IL 60115(815) 753-1311(815) 753-5906 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Shobha Mahadevan M.d. NPPES

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

DR. SHOBHA MAHADEVAN M.D. (NPI 1821082231) is an individual internal medicine provider in Dekalb, Illinois and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821082231
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. SHOBHA MAHADEVANCredential: M.D.
Location AddressHEALTH SERVICES, NORTHERN ILLINOIS UNIVERSITY, WIRTZ DRIVEDekalb, IL 60115
Mailing AddressHealth Services, Northern Illinois University, Wirtz DriveDekalb, IL 60115 · (815) 753-1311 · Fax (815) 753-5906
Phone(815) 753-1311
Fax(815) 753-5906
Sole ProprietorNo
Enumeration DateAugust 31, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1821082231 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.
HEALTH SERVICES, Dekalb, IL 60115
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Other Identifiers 1

Medicaid036-096889-1IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Shobha Mahadevan 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60115 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
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
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. SUJATA A OAK MD
Internal Medicine
HEALTH SERVICES, NORTHERN ILLINOIS UNIVERSITY
DEKALB, IL 60115
Dekalb County (815) 753-1311
DR. JOHN LANDIS BOWMAN MD
General Practice
HEALTH SERVICES, NORTHERN ILLINOIS UNIVERSITY
DEKALB, IL 60115
Dekalb County (815) 753-1311
DR. MICHAEL LOUIS BROWN MD
Family Medicine
HEALTH SERVICES, NORTHERN ILLINOIS UNIVERSITY
DEKALB, IL 60115
Dekalb County (815) 753-9598

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 Shobha Mahadevan's NPI number?

The NPI number for Shobha Mahadevan is 1821082231. It was assigned to this individual provider in the NPPES registry on August 31, 2005.

Where is Shobha Mahadevan located?

Shobha Mahadevan practices at Health Services Northern Illinois University, Wirtz Drive, Dekalb, IL 60115. The listed phone number is (815) 753-1311.

What is Shobha Mahadevan's specialty?

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

Is Shobha Mahadevan enrolled in Medicare?

Yes. Shobha Mahadevan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Shobha Mahadevan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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.