Leslie A. Greskowiak, Apncnp
- Medicare patients, 2024
- 49
- Part D claims, 2024
- 731
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Industry payments
- $17
- Practice address
- 120 Osler Dr, 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
Edward Health Ventures
Naperville, Illinois
Find Leslie Greskowiak'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.
Leslie A. Greskowiak is a nurse practitioner in Naperville, Illinois
Leslie Greskowiak practices at Edward Health Ventures in Naperville, Illinois.
Leslie Greskowiak's NPI, 1164998332, was assigned on October 15, 2018. Leslie Greskowiak holds Illinois license 209018380.
- NPI
- 1164998332NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496087967
- NPI enumeration date
- October 15, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (630) 527-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Leslie A. Greskowiak practices at Edward Health Ventures in Naperville, Illinois
Leslie Greskowiak's primary practice is Edward Health Ventures, at 120 Osler Dr, Naperville, IL 60540 in Dupage County. The practice phone is (630) 527-3000.
- Edward Health Ventures120 Osler Dr, Naperville, IL 60540 · Dupage CountyPhone(630) 527-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Leslie A. Greskowiak is affiliated with 5 sites of care and 2 medical groups
Leslie Greskowiak's primary practice is Edward Health Ventures in Naperville, Illinois. Leslie Greskowiak is also affiliated with Edward Hospital. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Leslie Greskowiak to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Leslie A. Greskowiak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leslie Greskowiak practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Edward Health Ventures | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Leslie A. Greskowiak is one of 4,254 nurse practitioners in Illinois
Nurse practitioner is Leslie Greskowiak's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Leslie Greskowiak is licensed in Illinois.
Specialties and state licenses
- Nurse practitioner, IllinoisPrimary
Nurse practitioners near Leslie Greskowiak
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
Leslie A. Greskowiak treated 49 Medicare patients in 2024, average age 69
CMS counts 49 Medicare patients who saw Leslie Greskowiak in 2024. The largest group is 65 to 74, with 28 patients. 75% of them have high cholesterol, and 53% have arthritis. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Leslie Greskowiak's median patient age at 49, with 82% women.
Leslie Greskowiak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Leslie Greskowiak's Medicare patients, 2024
- High cholesterol75%
- Arthritis53%
- High blood pressure49%
- Anxiety45%
- Mood disorders33%
- Depression31%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Leslie Greskowiak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women82%
- Men17%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Leslie A. Greskowiak wrote 731 Medicare Part D claims in 2024
In 2024, Leslie Greskowiak wrote 731 Medicare Part D claims for 105 patients. 91% of them were for generic drugs.
Leslie Greskowiak's Part D claims by kind of drug, 2024
- Generic667 claims91%
- Brand-name64 claims9%
Drug classes CMS tracks in Leslie Greskowiak's Part D claims, 2024
- Antibiotics2%18 of 731 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Leslie A. Greskowiak 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 Leslie Greskowiak for performance year 2024, reported as part of a group. Leslie Greskowiak accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Leslie Greskowiak as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Leslie Greskowiak'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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Leslie A. Greskowiak received $17 in industry payments in 2025
CMS Open Payments shows 1 general payment to Leslie Greskowiak from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $17.
Companies that paid Leslie Greskowiak the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Leslie A. Greskowiak'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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 Leslie A. Greskowiak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leslie A. Greskowiak's NPI number?
Leslie A. Greskowiak's NPI number is 1164998332. It was assigned on October 15, 2018, and it is active in the NPI Registry.
What does Leslie A. Greskowiak specialize in?
Leslie A. Greskowiak is a nurse practitioner in Naperville, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Leslie A. Greskowiak practice?
Leslie Greskowiak practices at 120 Osler Dr, Naperville, IL 60540. Leslie Greskowiak's primary practice is Edward Health Ventures in Naperville, Illinois. Dmand AI also links Leslie Greskowiak to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Leslie A. Greskowiak's office phone number?
The practice phone on file for Leslie Greskowiak is (630) 527-3000.
What is Leslie A. Greskowiak's medical license number?
Leslie Greskowiak holds Illinois license 209018380.
Which hospitals is Leslie A. Greskowiak affiliated with?
Leslie Greskowiak is affiliated with Edward Hospital. Dmand AI links Leslie Greskowiak to 1 more hospital.
What medical group is Leslie A. Greskowiak part of?
Leslie Greskowiak is linked to Endeavor Health Medical Group. Dmand AI links Leslie Greskowiak to 1 more medical group.
Does Leslie A. Greskowiak accept Medicare?
Yes. CMS lists Leslie Greskowiak as accepting Medicare assignment.
Does Leslie A. Greskowiak offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Leslie Greskowiak as offering telehealth services.
What is Leslie A. Greskowiak's MIPS score?
Leslie Greskowiak's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
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How many Medicare patients does Leslie A. Greskowiak see?
CMS counts 49 Medicare patients who saw Leslie Greskowiak in 2024, with an average age of 69.
Has Leslie A. Greskowiak received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Leslie Greskowiak from 1 company from 2025 to 2025. The largest total came from Hologic Inc.
How long has Leslie A. Greskowiak been practicing?
Leslie Greskowiak graduated from medical school in 2018, 8 years ago.
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