NPPES file of Aug 9, 2026

Ryan Michael Weiss, MD

Nephrology Physician · La Grange Highlands, IL

Ryan Michael Weiss, MD is a nephrology physician with a practice address in La Grange Highlands, Illinois, and NPI 1295239762, issued on Mar 20, 2018. Check the license (Illinois 036.155384, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295239762
Name
Ryan Michael Weiss
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
036.155384 IL
54096 KY
Self-reported in NPPES; status is on the state search
Practice location
5201 Willow Springs RD Ste 260, La Grange Highlands, IL 60525
Phone
(708) 354-1306
Enumerated
Mar 20, 2018
Record last updated
Aug 4, 2025
Fax
(708) 354-1538
Medicare enrollment
Enrolled (PECOS I20230421002475); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5201 Willow Springs RD Ste 260

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Leonor Banez, NP-CNurse Practitioner1386987352

Verify Ryan Michael Weiss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036.155384
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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71% fewer Medicare Part D claims than the average nephrology physician in 2024

422 Medicare Part D claims for 93 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Ryan Weiss422
  2. Specialty average1,465

Most prescribed

  1. Lisinopril46 claims
  2. Jardiance38 claims
  3. Farxiga31 claims
  4. Metoprolol Succinate26 claims
  5. Amlodipine Besylate25 claims
  6. Furosemide25 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: $526.57

22 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.

  1. Ryan Weiss$526.57
  2. Specialty average$3,091.37

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

  1. Nephrology Associates OF Northern Illinois LtdLa Grange Highlands, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ryan Michael Weiss among 572 nephrology physician records in Illinois

Ryan Michael Weiss, 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 2018, is newer than 88% of them.

  • NPI issued2018 · 88% of these records are older, 10% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2017 · 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.

The 8 nephrology physician records with the nearest ZIP codes

  1. May Chow, MDLa Grange Highlands, IL 605251770580870
  2. Sadaf Elahi, M.D.La Grange, IL 605251124071147
  3. Leonard Potempa, MDLa Grange Highlands, IL 605251710984646
  4. John Asplin, MDBurr Ridge, IL 605271275695728
  5. Bryan Becker, MDBurr Ridge, IL 605271386611903
  6. John Daugirdas, MDBurr Ridge, IL 605271316133614
  7. Orly Kohn, MDBurr Ridge, IL 605271760544217
  8. Arthur Morris, MDOak Brook, IL 605231033111042

Common questions

What is Ryan Michael Weiss, MD's NPI number?

Ryan Michael Weiss, MD's National Provider Identifier (NPI) is 1295239762, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Michael Weiss, MD located?

The NPPES record lists a practice address at 5201 Willow Springs RD Ste 260, La Grange Highlands, IL, 60525. Phone: (708) 354-1306. Providers update this record themselves, so call before visiting.

How can I verify Ryan Michael Weiss, MD's license?

NPPES lists Illinois license number 036.155384, 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 Ryan Michael Weiss, MD prescribe under Medicare Part D?

In 2024, Ryan Michael Weiss, MD had 422 Medicare Part D claims for 93 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.