Eileen Kosztowny
Family Nurse Practitioner · Lake Orion, MI
Eileen Kosztowny is a family nurse practitioner with a practice address in Lake Orion, Michigan, and NPI 1881061299, issued on Sep 1, 2015. Check the license (Michigan 4704279336, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Eileen Kosztowny
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 4704279336 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2961 Walmsley Circle Dr, Lake Orion, MI 48360
- Phone
- (248) 941-4217
- Enumerated
- Sep 1, 2015
- Record last updated
- Oct 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151229001360); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,356 in Michigan → Look up another NPI →
Verify Eileen Kosztowny in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704279336Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average family nurse practitioner in 2024
301 Medicare Part D claims for 247 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin61 claims
- Amoxicillin-Clavulanate Potass51 claims
- Prednisone42 claims
- Amoxicillin20 claims
- Doxycycline Hyclate16 claims
- Erythromycin11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Wellstreet Urgent Care OF MichiganBloomfield Township, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eileen Kosztowny among 5,356 family nurse practitioner records in Michigan
Eileen Kosztowny is one of 5,356 family nurse practitioner records with a practice address in Michigan. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 24% of them.
- NPI issued2015 · 24% of these records are older, 71% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2015 · median 2019 among the 3,254 with a school on file
- Record last updated2021 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 family nurse practitioner records list a practice address in Lake Orion
They are 25 of the 448 NPPES records with a practice address in Lake Orion, and 5,356 family nurse practitioner records in Michigan.
All 5,356 in Michigan → Every provider in Lake Orion → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Apneet Bal, FNP-CLake Orion, MI 483601265038020
- Shawna CudaLake Orion, MI 483601487136552
- Joanna Eddy, RN, BSN, MSN, FNP-CLake Orion, MI 483601063931863
- Colleen Ellis, FNP-CLake Orion, MI 483601437539681
- Kaycie Grusnick, FNP-CLake Orion, MI 483601902209802
- Allison Laprise, FNP-CLake Orion, MI 483601962866533
- Suzana Marku, NPLake Orion, MI 483601285125625
- Haneet Multani, NPLake Orion, MI 483601679042949
Common questions
What is Eileen Kosztowny's NPI number?
Eileen Kosztowny's National Provider Identifier (NPI) is 1881061299, issued on Sep 1, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Eileen Kosztowny located?
The NPPES record lists a practice address at 2961 Walmsley Circle Dr, Lake Orion, MI, 48360. Phone: (248) 941-4217. Providers update this record themselves, so call before visiting.
How can I verify Eileen Kosztowny's license?
NPPES lists Michigan license number 4704279336, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Eileen Kosztowny prescribe under Medicare Part D?
In 2024, Eileen Kosztowny had 301 Medicare Part D claims for 247 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Eileen Kosztowny's MIPS final score?
The 2023 MIPS final score is 77.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.