Sarah Koslakiewicz, MD
Family Medicine Physician · Saint Clair Shores, MI
Sarah Koslakiewicz, MD is a family medicine physician with a practice address in Saint Clair Shores, Michigan, and NPI 1538891528, issued on Jun 28, 2022. Check the license (Michigan 4301515006, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Sarah Koslakiewicz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301515006 MI
Self-reported in NPPES; status is on the state search - Practice location
- 22646 E 9 Mile RD, Saint Clair Shores, MI 48080
- Phone
- (586) 498-4800
- Enumerated
- Jun 28, 2022
- Record last updated
- Oct 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20250922000303); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 22646 E 9 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric McCutcheon, DDSDentist1295827020
- Monica Szmyd, MDFamily Medicine Physician1205416674
Verify Sarah Koslakiewicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301515006Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
175 Medicare Part D claims for 52 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Omeprazole14 claims
- Atorvastatin Calcium11 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.
Bills Medicare through one group practice
- Oakwood Ambulatory LLCBelleville, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah Koslakiewicz among 6,013 family medicine physician records in Michigan
Sarah Koslakiewicz, MD is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 89% of them.
- NPI issued2022 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2022 · median 2008 among the 3,493 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
79 family medicine physician records list a practice address in Saint Clair Shores
They are 79 of the 1,255 NPPES records with a practice address in Saint Clair Shores, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Saint Clair Shores → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kenneth Bollin, MDSaint Clair Shores, MI 480801144212788
- Paul Burgoyne, MDSaint Clair Shores, MI 480801407823339
- Margaret Eckel, D.O.St Clair Shores, MI 480801144212325
- Kathleen Fulgenzi, MDSt Clair Shores, MI 480801588656102
- Donna Hoban, M.D.St Clair Shores, MI 480801205828498
- Mark Holowinski, M.D.Saint Clair Shores, MI 480801023010063
- Sigmund McIntyre, MDSaint Clair Shores, MI 480801275525966
- Mary Murphy, MDSt Clair Shores, MI 480801306838834
Common questions
What is Sarah Koslakiewicz, MD's NPI number?
Sarah Koslakiewicz, MD's National Provider Identifier (NPI) is 1538891528, issued on Jun 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Koslakiewicz, MD located?
The NPPES record lists a practice address at 22646 E 9 Mile RD, Saint Clair Shores, MI, 48080. Phone: (586) 498-4800. Providers update this record themselves, so call before visiting.
How can I verify Sarah Koslakiewicz, MD's license?
NPPES lists Michigan license number 4301515006, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sarah Koslakiewicz, MD prescribe under Medicare Part D?
In 2024, Sarah Koslakiewicz, MD had 175 Medicare Part D claims for 52 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.