Leonard Potempa, MD
Nephrology Physician · La Grange Highlands, IL
Leonard Potempa, MD is a nephrology physician with a practice address in La Grange Highlands, Illinois, and NPI 1710984646, issued on Jul 7, 2005. Check the license (Illinois 036066846, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leonard Potempa
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 036066846 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5201 Willow Springs RD, La Grange Highlands, IL 60525
- Phone
- (708) 354-1306
- Enumerated
- Jul 7, 2005
- Record last updated
- Apr 29, 2025
- Fax
- (708) 354-1538
- Medicaid ID
- 03666846 IL
- Medicare enrollment
- Enrolled (PECOS I20091228000525); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 5201 Willow Springs RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Afzal Ahmad, CSASurgical Technologist1619295094
- Mark Benjamin, MDOphthalmology Physician1366433138
- Sami Bittar, M.D.Plastic and Reconstructive Surgery Physician1568428886
- Barbara Borgione, PA-CPhysician Assistant1124363619
- May Chow, MDNephrology Physician1770580870
Verify Leonard Potempa 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 036066846Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average nephrology physician in 2024
1,410 Medicare Part D claims for 194 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Spironolactone122 claims
- Losartan Potassium105 claims
- Amlodipine Besylate93 claims
- Hydralazine Hcl85 claims
- Torsemide77 claims
- Farxiga65 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: $58.12
2 payments; by number, the most common kind was food and beverage; the largest payer was Vifor Pharma, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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 2 group practices
- Nani Elk GroveElk Grove Village, IL
- Nephrology Associates OF Northern Illinois LtdElk Grove Village, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leonard Potempa among 572 nephrology physician records in Illinois
Leonard Potempa, MD is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1982 · median 2002 among the 433 with a school on file
- Record last updated2025 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 nephrology physician records list a practice address in La Grange Highlands
They are 3 of the 85 NPPES records with a practice address in La Grange Highlands, and 572 nephrology physician records in Illinois.
All 572 in Illinois → Every provider in La Grange Highlands → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- May Chow, MDLa Grange Highlands, IL 605251770580870
- Sadaf Elahi, M.D.La Grange, IL 605251124071147
- Ryan Weiss, MDLa Grange Highlands, IL 605251295239762
- John Asplin, MDBurr Ridge, IL 605271275695728
- Bryan Becker, MDBurr Ridge, IL 605271386611903
- John Daugirdas, MDBurr Ridge, IL 605271316133614
- Orly Kohn, MDBurr Ridge, IL 605271760544217
- Arthur Morris, MDOak Brook, IL 605231033111042
Common questions
What is Leonard Potempa, MD's NPI number?
Leonard Potempa, MD's National Provider Identifier (NPI) is 1710984646, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Potempa, MD located?
The NPPES record lists a practice address at 5201 Willow Springs RD, La Grange Highlands, IL, 60525. Phone: (708) 354-1306. Providers update this record themselves, so call before visiting.
How can I verify Leonard Potempa, MD's license?
NPPES lists Illinois license number 036066846, 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 Leonard Potempa, MD prescribe under Medicare Part D?
In 2024, Leonard Potempa, MD had 1,410 Medicare Part D claims for 194 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.