NATALIE REIZINE M.D.
NPI 1194106724
Internal Medicine - Medical Oncology in Chicago, IL

Q: What is Natalie Reizine's NPI number?

The NPI number for Natalie Reizine is 1194106724. It was assigned to this individual provider in the NPPES registry on June 9, 2015.

Q: What is Natalie Reizine's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for Natalie Reizine was last updated on March 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.

Active since June 09, 2015PECOS EnrolledAccepts Medicare Assignment

87.08/100

CMS Quality Rating

5841 S MARYLAND AVE # MC3051, CHICAGO, IL 60637(773) 702-6840(773) 702-2230 Get Directions Write a Review

NPPES record last updated: March 14, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Natalie Reizine M.d. NPPES

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

NATALIE REIZINE M.D. (NPI 1194106724) is an individual medical oncology provider in Chicago, Illinois, licensed in Illinois (036146006) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with University Of Illinois Hospital And Clinics, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2015).

NPPES Registry Identity

NPI1194106724

Entity TypeIndividualFemale

Primary Taxonomy207RX0202X

Provider Legal NameNATALIE REIZINECredential: M.D.

Location Address5841 S MARYLAND AVE # MC3051Chicago, IL 60637-1447

Mailing Address5841 S Maryland Ave # Mc3051Chicago, IL 60637-1447 · (773) 702-6840 · Fax (773) 702-2230

Phone(773) 702-6840

Fax(773) 702-2230

Sole ProprietorNo

Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2015

Enumeration DateJune 9, 2015

Last NPPES UpdateMarch 14, 2025

NPPES CertifiedMarch 14, 2025

✔ NPI 1194106724 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in IL · 036146006

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036146006 (IL)

5841 S MARYLAND AVE # MC3051, Chicago, IL 60637

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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

Natalie Reizine 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 ID3274846498

PECOS Enrollment IDI20210809003860

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 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.

64 services17 patients

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.

32 services19 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.

31 services20 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.

15 services15 patients

Hospital Affiliations CMS Care Compare

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

University Of Illinois Hospital And Clinics

Acute Care Hospitals · Chicago, IL

2/5 CMS rating

OwnershipGovernment - State

CMS Certification Number140150

Location1740 West Taylor St Suite 1400Chicago, IL 60612 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60637 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.

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.

87.08/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

70.79

Promoting Interoperability

100

Improvement Activities

Cost

52.82

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JENNA MICHELE MARK

Nurse Practitioner (Acute Care)

5841 S MARYLAND AVE # MC3051
CHICAGO, IL 60637

Cook County (773) 219-2011

KRIYA PATEL

Internal Medicine

5841 S MARYLAND AVE # MC3051
CHICAGO, IL 60637

Cook County (773) 702-6840

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 Natalie Reizine's NPI number?

The NPI number for Natalie Reizine is 1194106724. It was assigned to this individual provider in the NPPES registry on June 9, 2015.

Where is Natalie Reizine located?

Natalie Reizine practices at 5841 S Maryland Ave # Mc3051, Chicago, IL 60637. The listed phone number is (773) 702-6840.

What is Natalie Reizine's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Natalie Reizine enrolled in Medicare?

Yes. Natalie Reizine 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 Natalie Reizine affiliated with any hospitals?

According to CMS data, Natalie Reizine is affiliated with University Of Illinois Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Natalie Reizine was last updated on March 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.