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SIMONA C CHIVU MD
NPI 1942416235
Internal Medicine - Hematology & Oncology in New Lenox, IL

Active since May 15, 2007PECOS EnrolledAccepts Medicare Assignment
97.71/100
CMS Quality Rating
1850 SILVER CROSS BLVD, NEW LENOX, IL 60451(815) 300-1100 Get Directions Write a Review

NPPES record last updated: February 21, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Simona C Chivu Md NPPES

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

SIMONA C CHIVU MD (NPI 1942416235) is an individual hematology & oncology provider in New Lenox, Illinois, licensed in Illinois (036128555) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1942416235
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameSIMONA C CHIVUCredential: MD
Location Address1850 SILVER CROSS BLVDNew Lenox, IL 60451
Mailing Address1850 Silver Cross BlvdNew Lenox, IL 60451-9508
Phone(815) 300-1100
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateMay 15, 2007
Last NPPES UpdateFebruary 21, 2019
✔ NPI 1942416235 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 · 036128555
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.
1850 SILVER CROSS BLVD, New Lenox, IL 60451
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Other Identifiers 1

Other036128555IL · Il License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Simona C Chivu Md 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 ID4486825858
PECOS Enrollment IDI20110914000692
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Simona Chivu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Little Company Of Mary Affiliated Services Inc
17 mi
Urgent Care
5660 W 95TH ST, SUITE 1
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • 67 clinicians in this Medicare group
NPI 1033162086 (708) 499-2273
The University Of Chicago Medical Center
26 mi
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
26 mi
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200

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

Areas of Expertise CMS Part B claims 7

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
374 services123 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
358 services240 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.
284 services120 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.
110 services93 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
56 services50 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
53 services52 patients

Hospital Affiliations CMS Care Compare 3

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

The University Of Chicago Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140088
Location5841 South MarylandChicago, IL 60637 · Cook County
Emergency services Birthing friendly

Ingalls Memorial Hospital

Acute Care Hospitals · Harvey, IL
2/5 CMS rating
OwnershipPhysician
CMS Certification Number140191
Location1 Ingalls DriveHarvey, IL 60426 · Cook County
Emergency services Birthing friendly

Silver Cross Hospital And Medical Centers

Acute Care Hospitals · New Lenox, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140213
Location1900 Silver Cross BlvdNew Lenox, IL 60451 · Will County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60451 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
$181.38 typical visit price
range $59.81 – $181.38
Typical copayment $45.34 (range $14.95 – $45.34)
Most-billed visit code 99205
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

97.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality75.43
Promoting Interoperability100
Improvement Activities40

Reported Quality Measures

Breast Cancer Screening
Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer
67%180 patients3/55-star benchmark: 92%
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
26%218 patients2/55-star benchmark: 85%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
97%1,022 patients4/55-star benchmark: 100%
Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
30%202 patients2/55-star benchmark: 90%
Preventive Care and Screening: Influenza Immunization
Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization
23%283 patients2/55-star benchmark: 88%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 99% · 216 patients
99%220 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

MARY ELLEN WEEG AGCNS-BC
Clinical Nurse Specialist
1850 SILVER CROSS BLVD
NEW LENOX, IL 60451
Will County (815) 300-5783
DR. DARIO MARTIN VILLAMAR M.D.
Internal Medicine (Hematology & Oncology)
1850 SILVER CROSS BLVD
NEW LENOX, IL 60451
Will County (815) 300-1400
GABRIELA RODRIGUEZ APRN
Nurse Practitioner (Adult Health)
1850 SILVER CROSS BLVD
NEW LENOX, IL 60451
Will County (815) 300-1400

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 Simona Chivu's NPI number?

The NPI number for Simona Chivu is 1942416235. It was assigned to this individual provider in the NPPES registry on May 15, 2007.

Where is Simona Chivu located?

Simona Chivu practices at 1850 Silver Cross Blvd, New Lenox, IL 60451. The listed phone number is (815) 300-1100.

What is Simona Chivu's specialty?

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

Is Simona Chivu enrolled in Medicare?

Yes. Simona Chivu 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.

Which organizations bill Medicare for Simona Chivu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Simona Chivu reassigns Medicare benefits to 3 organizations: Little Company Of Mary Affiliated Services Inc (Oak Lawn, IL), The University Of Chicago Medical Center (Chicago, IL) and University Of Chicago (Chicago, IL). Each 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 Simona Chivu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Simona Chivu accept?

Health plans from Oscar Health list Simona Chivu 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.

Is Simona Chivu affiliated with any hospitals?

According to CMS data, Simona Chivu is affiliated with The University Of Chicago Medical Center, Ingalls Memorial Hospital and Silver Cross Hospital And Medical Centers.

When was this NPI record last updated?

The NPPES record for Simona Chivu was last updated on February 21, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.