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DINESH KUMAR RENGARAJAN M.D.
NPI 1194166595
Internal Medicine in Chicago, IL

Active since July 13, 2013PECOS EnrolledAccepts Medicare Assignment
1969 W OGDEN AVE, CHICAGO, IL 60612(312) 864-6000 Get Directions Write a Review

NPPES record last updated: July 13, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dinesh Kumar Rengarajan M.d. NPPES

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

DINESH KUMAR RENGARAJAN M.D. (NPI 1194166595) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (125063431) and active in the NPI registry since July 2013. He is enrolled in Medicare PECOS, is affiliated with Mt Sinai Hospital Medical Center, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1194166595
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDINESH KUMAR RENGARAJANCredential: M.D.
Location Address1969 W OGDEN AVEChicago, IL 60612-3765
Mailing Address100 Forest Pl, 1301Oak Park, IL 60301-1145 · (312) 860-6946
Phone(312) 864-6000
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateJuly 13, 2013
✔ NPI 1194166595 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 · 125063431
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.
1969 W OGDEN AVE, Chicago, IL 60612
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dinesh Kumar Rengarajan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID244536472
PECOS Enrollment IDI20160930002080
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 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 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.
167 services84 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 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.
102 services53 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.
72 services67 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
20 services20 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mt Sinai Hospital Medical Center

Acute Care Hospitals · Chicago, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140018
Location1500 S Fairfield AveChicago, IL 60608 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Powered pressure reducing mattress overlay/pad, alternating, with pump, includes heavy duty E0181
DME-Other DME · category DE000N
1 supplier17 claims17 services$10.87 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier17 claims17 services$47.41 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier43 claims43 services$14.65 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 supplier43 claims43 services$62.41 avg. paid by Medicare
Lightweight wheelchair K0003
DME-Wheelchairs · category DD000N
1 supplier22 claims22 services$30.23 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.

DR. VIGNESH CHIDAMBARAM MD, MPH
Internal Medicine (Cardiovascular Disease)
1969 W OGDEN AVE
CHICAGO, IL 60612
Cook County (312) 864-6000
LUCAS KUZMANIC DO
Internal Medicine
1969 W OGDEN AVE
CHICAGO, IL 60612
Cook County (312) 864-6000
KEERTHIKA VIJAYAKUMAR MBBS
Internal Medicine
1969 W OGDEN AVE
CHICAGO, IL 60612
Cook County (312) 864-6000
DR. KEVIN BOUBOULEIX
Emergency Medicine
1969 W OGDEN AVE
CHICAGO, IL 60612
Cook County (312) 864-6000
NABEEL ZIA AHMED
Internal Medicine
1969 W OGDEN AVE
CHICAGO, IL 60612
Cook County (312) 864-6000
DR. VAMSI KRISHNA KAZA M.D., MBBS
Internal Medicine
1969 W OGDEN AVE
CHICAGO, IL 60612
Cook County (312) 864-6000
CHRISTINE MARIA WHIPPLE LCSW
Social Worker (Clinical)
1969 W OGDEN AVE, ROOM 1698
CHICAGO, IL 60612
Cook County (312) 864-1466
LESLIE FENIO PA-C
Physician Assistant
1969 W OGDEN AVE
CHICAGO, IL 60612
Cook County (312) 864-7761

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 Dinesh Kumar Rengarajan's NPI number?

The NPI number for Dinesh Kumar Rengarajan is 1194166595. It was assigned to this individual provider in the NPPES registry on July 13, 2013.

Where is Dinesh Kumar Rengarajan located?

Dinesh Kumar Rengarajan practices at 1969 W Ogden Ave, Chicago, IL 60612. The listed phone number is (312) 864-6000.

What is Dinesh Kumar Rengarajan's specialty?

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

Is Dinesh Kumar Rengarajan enrolled in Medicare?

Yes. Dinesh Kumar Rengarajan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Dinesh Kumar Rengarajan affiliated with any hospitals?

According to CMS data, Dinesh Kumar Rengarajan is affiliated with Mt Sinai Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Dinesh Kumar Rengarajan was last updated on July 13, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.