Dr. Oana Olaru, MD
- Medicare services, 2024
- 1,267
- Medicare patients, 2024
- 484
- Part D claims, 2024
- 138
- MIPS score, 2024
- 85
- Hospital affiliations
- 1
- Practice address
- 801 South Washington, Naperville, IL 60540
- Practice phone
- Call (630) 527-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Olaru's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Oana Olaru is a hospitalist in Naperville, Illinois
Dr. Olaru practices at Edward Hospital in Naperville, Illinois, part of Endeavor Health.
Dr. Olaru's NPI, 1669466447, was assigned on September 7, 2005. Dr. Olaru holds Illinois license 036.110061.
- NPI
- 1669466447NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032149943
- NPI enumeration date
- September 7, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 527-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Oana Olaru practices at Edward Hospital in Naperville, Illinois
Dr. Olaru's primary practice is Edward Hospital, at 801 South Washington, Naperville, IL 60540 in Du Page County. The practice phone is (630) 527-3000.
- Edward Hospital801 South Washington, Naperville, IL 60540 · Du Page CountyPhone(630) 527-3000
Source: Dmand AI Affiliation Data
Dr. Oana Olaru is affiliated with 1 site of care and 2 medical groups
Dr. Olaru's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Olaru to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Oana Olaru's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Olaru practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Edward Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Endeavor Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Oana Olaru is one of 1,321 hospitalists in Illinois
Hospitalist is Dr. Olaru's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Olaru is licensed in Illinois.
Specialties and state licenses
- Hospitalist, IllinoisPrimary
Hospitalists near Dr. Olaru
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Oana Olaru billed Medicare for 1,267 services in 2024
CMS data shows 1,267 Medicare services from Dr. Olaru across 6 procedure codes in 2024, for 484 Medicare patients. Medicare paid $119,909 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Olaru's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1732024: 1,2678%
Dr. Olaru compared with the Illinois median for hospitalists, 2024
- Dr. Olaru
- Illinois median
- Medicare services
- 1,267vs 5432.3 times
- Medicare patients
- 484vs 2422.0 times
- Part D claims
- 28vs 5347% below
Medians across 1,248 hospitalists in Illinois with Dmand AI profiles that report each measure.
Dr. Olaru's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Olaru?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Olaru and other hospitalists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Oana Olaru treated 484 Medicare patients in 2024, average age 77
CMS counts 484 Medicare patients who saw Dr. Olaru in 2024. The largest group is 75 to 84, with 207 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.47, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Olaru's median patient age at 74, with 55% women.
Dr. Olaru's Medicare patients by age, 2024
Dr. Olaru's Medicare patients by sex, 2024
- Women26655%
- Men21845%
Chronic conditions among Dr. Olaru's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
- Ischemic heart disease50%
- Mood disorders49%
- Chronic kidney disease48%
- Anxiety45%
- Depression45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Olaru's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Oana Olaru wrote 138 Medicare Part D claims in 2024
In 2024, Dr. Olaru wrote 138 Medicare Part D claims for 88 patients. 89% of them were for generic drugs. CMS names the drug for 28 of them, across 2 drugs with 11 or more claims each, at $131 in total drug cost. In 2023, CMS named 24 claims across 2 drugs.
Dr. Olaru's Part D claims by kind of drug, 2024
- Generic123 claims89%
- Brand-name and other15 claims11%
Dr. Olaru's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Olaru's Part D claims, 2024
- Opioids14%19 of 138 claims
- Antibiotics31%43 of 138 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 242024: 2817%
Drugs named by CMS: 2 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Oana Olaru scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Olaru for performance year 2024, reported as part of a group. Dr. Olaru accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Olaru's MIPS scores, performance year 2024
- 85of 100Final score
- 75.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Oana Olaru received $122 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Olaru from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $122.
Companies that paid Dr. Olaru the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Oana Olaru's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Oana Olaru
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Oana Olaru's NPI number?
Dr. Oana Olaru's NPI number is 1669466447. It was assigned on September 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Oana Olaru?
Dr. Oana Olaru is a hospitalist in Naperville, Illinois. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Oana Olaru practice?
Dr. Olaru practices at 801 South Washington, Naperville, IL 60540. Dr. Olaru's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. Dmand AI also links Dr. Olaru to 1 medical group.
What is Dr. Oana Olaru's office phone number?
The practice phone on file for Dr. Olaru is (630) 527-3000.
What is Dr. Oana Olaru's medical license number?
Dr. Olaru holds Illinois license 036.110061.
Which hospitals is Dr. Oana Olaru affiliated with?
Dr. Olaru practices at Edward Hospital in Naperville, Illinois.
What medical group is Dr. Oana Olaru part of?
Dr. Olaru is linked to Endeavor Health Medical Group. Dmand AI links Dr. Olaru to 1 more medical group.
Does Dr. Oana Olaru accept Medicare?
Yes. CMS data shows Dr. Olaru billed Medicare for 1,267 services in 2024, and Dr. Olaru accepts Medicare assignment.
What is Dr. Oana Olaru's MIPS score?
Dr. Olaru's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Oana Olaru see?
CMS counts 484 Medicare patients who saw Dr. Olaru in 2024, with an average age of 77.
Show 4 more questionsShow fewer questions
What services does Dr. Oana Olaru bill to Medicare?
In 2024, Dr. Olaru's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
What drugs does Dr. Oana Olaru prescribe most?
In 2024 Medicare Part D data, Dr. Olaru's most prescribed drugs by claims were Cephalexin and Hydrocodone-Acetaminophen.
Has Dr. Oana Olaru received payments from drug or device companies?
CMS Open Payments shows $122 in general payments to Dr. Olaru from 1 company from 2020 to 2020. The largest total came from Boston Scientific Corporation.
How long has Dr. Oana Olaru been practicing?
Dr. Olaru graduated from medical school in 1997, 29 years ago.
Selling to hospitalist practices?
See hospitalists in Illinois by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card