NIVAN CHOWATTUKUNNEL
NPI 1629537816
Internal Medicine - Hematology & Oncology in Chicago, IL

Q: What is Nivan Chowattukunnel's NPI number?

The NPI number for Nivan Chowattukunnel is 1629537816. It was assigned to this individual provider in the NPPES registry on March 18, 2019.

Q: What is Nivan Chowattukunnel's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Active since March 18, 2019PECOS EnrolledAccepts Medicare Assignment

900 W NELSON ST, CHICAGO, IL 60657(773) 296-7089 Get Directions Write a Review

NPPES record last updated: September 29, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 4, 2025, Mar 18, 2019 (2 updates tracked since 2019).

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About Nivan Chowattukunnel NPPES

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

NIVAN CHOWATTUKUNNEL (NPI 1629537816) is an individual hematology & oncology provider in Chicago, Illinois, licensed in Illinois (036.175156) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Indiana University School Of Medicine (2019).

NPPES Registry Identity

NPI1629537816

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameNIVAN CHOWATTUKUNNEL

Location Address900 W NELSON STChicago, IL 60657-6704

Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900

Phone(773) 296-7089

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 2019

Enumeration DateMarch 18, 2019

Last NPPES UpdateSeptember 29, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 29, 2025

✔ NPI 1629537816 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in IL · 036.175156

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

900 W NELSON ST, Chicago, IL 60657

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

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

Nivan Chowattukunnel 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 ID3072982537

PECOS Enrollment IDI20250725000204

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.

Hospital Affiliations CMS Care Compare

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

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140182

Location836 West Wellington AvenueChicago, IL 60657 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60657 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.

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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. RYAN MATTHEW RHOME MD, PHD

Radiology (Radiation Oncology)