DR. NIROSUTHAN RAJASINGAM MD
NPI 1790125474
Internal Medicine in Chicago, IL

Active since June 26, 2013PECOS Enrolled
80.83/100
CMS Quality Rating
1500 S FAIRFIELD AVE, AP, CHICAGO, IL 60608(773) 542-2000 Get Directions Write a Review

NPPES record last updated: June 26, 2013. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Dr. Nirosuthan Rajasingam Md NPPES

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

DR. NIROSUTHAN RAJASINGAM MD (NPI 1790125474) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (125.064095) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790125474
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. NIROSUTHAN RAJASINGAMCredential: MD
Location Address1500 S FAIRFIELD AVE, APChicago, IL 60608-1782
Mailing Address555 E 33rd Pl, Apt 504Chicago, IL 60616-4136 · (630) 456-8661
Sole ProprietorNo
Enumeration DateJune 26, 2013
NPI 1790125474 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in IL · 125.064095
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.

1500 S FAIRFIELD AVE, Chicago, IL 60608

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. Nirosuthan Rajasingam 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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Follow-up hospital inpatient care per day, typically 35 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
171 services70 patients
Follow-up hospital inpatient care per day, typically 25 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
98 services33 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
34 services34 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
23 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60608 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
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.

80.83/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.96
Promoting Interoperability72
Improvement Activities40
Cost63.15

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.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier29 claims29 services$14.14 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier29 claims29 services$59.99 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.

Family Medicine
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
General Acute Care Hospital (Children)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Emergency Medicine
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1500 S FAIRFIELD AVE, F-908
CHICAGO, IL 60608
Internal Medicine
1500 S FAIRFIELD AVE, DEPARTMENT OF INTERNAL MEDICINE
CHICAGO, IL 60608
Registered Nurse (Diabetes Educator)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
Radiology (Vascular & Interventional Radiology)
1500 S FAIRFIELD AVE
CHICAGO, IL 60608
General Acute Care Hospital
1500 S FAIRFIELD AVE
CHICAGO, IL 60608

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790125474, enumerated as an "individual" on June 26, 2013.

The provider is located at 1500 S FAIRFIELD AVE AP CHICAGO, IL 60608 and the phone number is (773) 542-2000.

Internal Medicine with taxonomy code 207R00000X.