Leslie Sleuwen, MD
Family Medicine Physician · Hinsdale, IL
Leslie Sleuwen, MD is a family medicine physician with a practice address in Hinsdale, Illinois, and NPI 1063464741, issued on May 17, 2006. Check the license (Illinois 36099994, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leslie Sleuwen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 36099994 IL
Self-reported in NPPES; status is on the state search - Practice location
- 135 N Oak St, Hinsdale, IL 60521
- Phone
- (630) 856-6865
- Enumerated
- May 17, 2006
- Record last updated
- Mar 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (630) 856-6813
- Medicaid ID
- 036099994 IL
- Medicare enrollment
- Enrolled (PECOS I20090114000366); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 135 N Oak St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erik Abramson, MDStudent in an Organized Health Care Education/Training Program1154056257
- Mariam Alam, DOStudent in an Organized Health Care Education/Training Program1487549952
- Natalie Albanito, DOStudent in an Organized Health Care Education/Training Program1093659492
- Farahnaz Ali, DOFamily Medicine Physician1487034195
- Kristofer Apellido, DOStudent in an Organized Health Care Education/Training Program1508623372
- Nasiha Asadullah, DOFamily Medicine Physician1386210979
Verify Leslie Sleuwen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 36099994Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average family medicine physician in 2024
677 Medicare Part D claims for 62 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium57 claims
- Levothyroxine Sodium38 claims
- Lisinopril38 claims
- Alendronate Sodium35 claims
- Metformin Hcl Er25 claims
- Rosuvastatin Calcium23 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.
Industry payments in 2024: $5,734.70
6 payments; by number, the most common kind was compensation for serving as faculty or as a speaker for a medical education program; the largest payer was Organon Llc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Adventist Midwest HealthHinsdale, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leslie Sleuwen among 6,215 family medicine physician records in Illinois
Leslie Sleuwen, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1995 · median 2006 among the 3,714 with a school on file
- Record last updated2021 · 54% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
50 family medicine physician records list a practice address in Hinsdale
They are 50 of the 1,290 NPPES records with a practice address in Hinsdale, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Hinsdale → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joel Brown, MDHinsdale, IL 605211831157452
- Clara Carls, DOHinsdale, IL 605211649220336
- Lisa Fortman, MDHinsdale, IL 605211225095565
- Ashwani Garg, MDHinsdale, IL 605211013958388
- Kate Gunnell, MDHinsdale, IL 605211164470670
- Zewdu Haile, MDHinsdale, IL 605211639150121
- Lisa Holmes, MDHinsdale, IL 605211871550798
- Margaret Kirkegaard, MDHinsdale, IL 605211558312918
Common questions
What is Leslie Sleuwen, MD's NPI number?
Leslie Sleuwen, MD's National Provider Identifier (NPI) is 1063464741, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leslie Sleuwen, MD located?
The NPPES record lists a practice address at 135 N Oak St, Hinsdale, IL, 60521. Phone: (630) 856-6865. Providers update this record themselves, so call before visiting.
How can I verify Leslie Sleuwen, MD's license?
NPPES lists Illinois license number 36099994, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leslie Sleuwen, MD prescribe under Medicare Part D?
In 2024, Leslie Sleuwen, MD had 677 Medicare Part D claims for 62 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.