OANA OLARU MD
NPI 1669466447
Hospitalist in Naperville, IL

Active since September 07, 2005PECOS EnrolledAccepts Medicare Assignment
91.35/100
CMS Quality Rating
801 S WASHINGTON ST, NAPERVILLE, IL 60540(630) 527-3000 Get Directions Write a Review

NPPES record last updated: March 31, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Oana Olaru Md NPPES

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

OANA OLARU MD (NPI 1669466447) is an individual hospitalist provider in Naperville, Illinois, licensed in Illinois (036.110061) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS, is affiliated with Edward Hospital, and is a graduate of Other (1997).

NPPES Registry Identity

NPI1669466447
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameOANA OLARUCredential: MD
Location Address801 S WASHINGTON STNaperville, IL 60540-7430
Mailing Address801 S Washington StNaperville, IL 60540-7430 · (630) 527-3000 · Fax (630) 527-3702
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateSeptember 7, 2005
Last NPPES UpdateMarch 31, 2021
NPPES CertifiedMarch 23, 2021
NPI 1669466447 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in IL · 036.110061
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036.110061 (IL)
801 S WASHINGTON ST, Naperville, IL 60540

Other Identifiers 1

Medicaid200525670IN

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

Oana Olaru 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 ID9032149943
PECOS Enrollment IDI20070731000288
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 6

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.
518 services249 patients
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.
338 services180 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.
163 services159 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.
153 services148 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
56 services55 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
39 services38 patients

Hospital Affiliations CMS Care Compare

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

Edward Hospital

Acute Care Hospitals · Naperville, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140231
Location801 South WashingtonNaperville, IL 60540 · Du Page County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
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.

91.35/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.71
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims

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

Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier11 claims11 services$3.41 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.

Pain Medicine (Interventional Pain Medicine)
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Emergency Medicine
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Emergency Medicine
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Family Medicine (Hospice and Palliative Medicine)
801 S WASHINGTON ST
NAPERVILLE, IL 60540
General Acute Care Hospital
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Internal Medicine (Infectious Disease)
801 S WASHINGTON ST, EDWARD HOSPITAL, ADMINISTRATION, VPMA OFFICE
NAPERVILLE, IL 60540
Radiology (Diagnostic Radiology)
801 S WASHINGTON ST
NAPERVILLE, IL 60540
Emergency Medicine
801 S WASHINGTON ST
NAPERVILLE, IL 60540

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 Oana Olaru's NPI number?

The NPI number for Oana Olaru is 1669466447. It was assigned to this individual provider in the NPPES registry on September 7, 2005.

Where is Oana Olaru located?

Oana Olaru practices at 801 S Washington St, Naperville, IL 60540. The listed phone number is (630) 527-3000.

What is Oana Olaru's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Oana Olaru enrolled in Medicare?

Yes. Oana Olaru 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 Oana Olaru affiliated with any hospitals?

According to CMS data, Oana Olaru is affiliated with Edward Hospital.

When was this NPI record last updated?

The NPPES record for Oana Olaru was last updated on March 31, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.