James J. Rydel, MD
Nephrology Physician · Oak Lawn, IL
James J. Rydel, MD is a nephrology physician with a practice address in Oak Lawn, Illinois, and NPI 1225078413, issued on Jun 7, 2006. Check the license (Illinois 036081397, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- James J. Rydel
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 036081397 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4542 W 95TH St, Oak Lawn, IL 60453
- Phone
- (708) 425-0522
- Enumerated
- Jun 7, 2006
- Record last updated
- Dec 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 036081397 IL
- Medicare enrollment
- Enrolled (PECOS I20040203000491); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1988
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 4542 W 95TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Arvan, MDNephrology Physician1336195528
- Sreya Pallath, MDNephrology Physician1467489583
Verify James J. Rydel 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 036081397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average nephrology physician in 2024
1,710 Medicare Part D claims for 289 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide111 claims
- Farxiga104 claims
- Sevelamer Carbonate97 claims
- Allopurinol94 claims
- Amlodipine Besylate88 claims
- Nifedipine Er81 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: $189.03
3 payments; by number, the most common kind was food and beverage; the largest payer was Esperion Therapeutics, 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 one group practice
- J R Nephology And Associates IncOak Lawn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James J. Rydel among 572 nephrology physician records in Illinois
James J. Rydel, 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1988 · median 2002 among the 433 with a school on file
- Record last updated2021 · 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).
Nephrology Physician providers in Illinois
There are 572 nephrology physician records in Illinois.
All 572 in Illinois → Every provider in Oak Lawn → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Hani Alsharif, MDOak Lawn, IL 604531598974149
- Kent Armbruster, M.D.Oak Lawn, IL 604531972528321
- Michael Arvan, MDOak Lawn, IL 604531336195528
- Mohamad Barakat, MDOak Lawn, IL 604531770523201
- Darshika Chhabra, MDOak Lawn, IL 604531003015116
- Sonja Marcic, MDOak Lawn, IL 604531700823192
- Jeanette McLaughlin, MDOak Lawn, IL 604531922138254
- Georgeous Morcos, MDOak Lawn, IL 604531306787338
Common questions
What is James J. Rydel, MD's NPI number?
James J. Rydel, MD's National Provider Identifier (NPI) is 1225078413, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James J. Rydel, MD located?
The NPPES record lists a practice address at 4542 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 425-0522. Providers update this record themselves, so call before visiting.
How can I verify James J. Rydel, MD's license?
NPPES lists Illinois license number 036081397, 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 James J. Rydel, MD prescribe under Medicare Part D?
In 2024, James J. Rydel, MD had 1,710 Medicare Part D claims for 289 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.