Maria E. Onak, Apncnp
- Medicare patients, 2024
- 149
- Part D claims, 2024
- 169
- MIPS score, 2024
- 85
- Hospital affiliations
- 1
- Medical groups
- 3
- Practice address
- 800 W Central Road, Arlington Heights, IL 60005
- Practice phone
- Call (847) 618-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Maria Onak'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.
Maria E. Onak is a nurse practitioner in Arlington Heights, Illinois
Maria Onak practices at Northwest Community Hospital in Arlington Heights, Illinois, part of Endeavor Health.
Maria Onak's NPI, 1700074754, was assigned on October 3, 2007. Maria Onak graduated from Rush Medical College of Rush University in 2007. Maria Onak holds Illinois license 209006771.
- NPI
- 1700074754NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941390405
- NPI enumeration date
- October 3, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 618-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Maria E. Onak practices at Northwest Community Hospital in Arlington Heights, Illinois
Maria Onak's primary practice is Northwest Community Hospital, at 800 W Central Road, Arlington Heights, IL 60005 in Cook County. The practice phone is (847) 618-1000.
- Northwest Community Hospital800 W Central Road, Arlington Heights, IL 60005 · Cook CountyPhone(847) 618-1000
Source: Dmand AI Affiliation Data
Maria E. Onak is affiliated with 4 sites of care and 3 medical groups
Maria Onak's primary practice is Northwest Community Hospital in Arlington Heights, Illinois, part of Endeavor Health. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Maria Onak to 2 more medical groups, 1 group practice or clinic, 1 hospice and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Maria E. Onak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Maria Onak practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwest Community Hospital | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Maria E. Onak is one of 4,254 nurse practitioners in Illinois
Nurse practitioner is Maria Onak's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Maria Onak is licensed in Illinois.
Specialties and state licenses
- Nurse practitioner, IllinoisPrimary
Nurse practitioners near Maria Onak
Counts of nurse practitioners 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
Maria E. Onak treated 149 Medicare patients in 2024, average age 81
CMS counts 149 Medicare patients who saw Maria Onak in 2024. The largest group is 85 and over, with 68 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 41% are also on Medicaid. Their average risk score is 3.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Maria Onak's median patient age at 79, with 54% women.
Maria Onak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Maria Onak's Medicare patients by sex, 2024
- Women8255%
- Men6745%
Chronic conditions among Maria Onak's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis67%
- Mood disorders58%
- Heart failure55%
- Anxiety52%
- Chronic kidney disease52%
- Ischemic heart disease52%
Share of Medicare patients with each condition. A patient can have several.
Maria Onak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Maria E. Onak wrote 169 Medicare Part D claims in 2024
In 2024, Maria Onak wrote 169 Medicare Part D claims for 23 patients. 99% of them were for generic drugs.
Maria Onak's Part D claims by kind of drug, 2024
- Generic168 claims99%
- Brand-name and other1 claims1%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Maria E. Onak 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 Maria Onak for performance year 2024, reported as part of a group. Maria Onak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Maria Onak'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
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Maria E. Onak graduated from Rush Medical College of Rush University
Maria Onak graduated from Rush Medical College of Rush University in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Maria E. Onak'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 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 (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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Maria E. Onak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Maria E. Onak's NPI number?
Maria E. Onak's NPI number is 1700074754. It was assigned on October 3, 2007, and it is active in the NPI Registry.
What does Maria E. Onak specialize in?
Maria E. Onak is a nurse practitioner in Arlington Heights, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Maria E. Onak practice?
Maria Onak practices at 800 W Central Road, Arlington Heights, IL 60005. Maria Onak's primary practice is Northwest Community Hospital in Arlington Heights, Illinois, part of Endeavor Health. Dmand AI also links Maria Onak to 2 medical groups, 1 group practice or clinic, 1 hospice and 1 hospital outpatient department.
What is Maria E. Onak's office phone number?
The practice phone on file for Maria Onak is (847) 618-1000.
What is Maria E. Onak's medical license number?
Maria Onak holds Illinois license 209006771.
Which hospitals is Maria E. Onak affiliated with?
Maria Onak practices at Northwest Community Hospital in Arlington Heights, Illinois.
What medical group is Maria E. Onak part of?
Maria Onak is linked to Endeavor Health Medical Group. Dmand AI links Maria Onak to 2 more medical groups.
Does Maria E. Onak accept Medicare?
Yes. CMS lists Maria Onak as accepting Medicare assignment.
What is Maria E. Onak's MIPS score?
Maria Onak's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Maria E. Onak see?
CMS counts 149 Medicare patients who saw Maria Onak in 2024, with an average age of 81.
Where did Maria E. Onak go to medical school?
Maria Onak graduated from Rush Medical College of Rush University in 2007.
How long has Maria E. Onak been practicing?
Maria Onak graduated from medical school in 2007, 19 years ago.
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