Aaron Gurfinchel, MD
Nephrology Physician · Joliet, IL
Aaron Gurfinchel, MD is a nephrology physician with a practice address in Joliet, Illinois, and NPI 1639392939, issued on Apr 11, 2007. Check the license (Illinois 036103677, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Aaron Gurfinchel
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 036103677 IL
036-103677 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3100 Theodore Street, Joliet, IL 60435
- Phone
- (815) 744-5550
- Enumerated
- Apr 11, 2007
- Record last updated
- Apr 28, 2025
- Fax
- (815) 744-5428
- Medicaid ID
- 036103677 IL
- Medicare enrollment
- Enrolled (PECOS I20040817000574); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 3100 Theodore Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zdzislawa Majka-Kravets, MDNephrology Physician1467560961
- Preeti Nagarkatte, MDNephrology Physician1841308335
Verify Aaron Gurfinchel 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 036103677Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average nephrology physician in 2024
907 Medicare Part D claims for 193 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Calcitriol127 claims
- Amlodipine Besylate92 claims
- Allopurinol67 claims
- Furosemide66 claims
- Hydrochlorothiazide59 claims
- Calcium Acetate52 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: $44.08
3 payments; by number, the most common kind was education; 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.
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
- Nephrology Associates OF Northern Illinois LtdJoliet, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron Gurfinchel among 572 nephrology physician records in Illinois
Aaron Gurfinchel, 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 43% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1989 · 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).
Nephrology Physician providers in Illinois
There are 572 nephrology physician records in Illinois.
All 572 in Illinois → Every provider in Joliet → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Naila Ahmed, MDJoliet, IL 604351447368949
- Morufu Alausa, M.DJoliet, IL 604351730135955
- Stella Awua-Larbi, M.D.Joliet, IL 604351316117443
- Rashmi Bisla, M.D.Joliet, IL 604351265758635
- Jennifer Bond, DOJoliet, IL 604351124382783
- Bhuvan Chawla, M.D.Joliet, IL 604351275660169
- Beata Kisiel, M.D.Joliet, IL 604351033222104
- Zdzislawa Majka-Kravets, MDJoliet, IL 604351467560961
Common questions
What is Aaron Gurfinchel, MD's NPI number?
Aaron Gurfinchel, MD's National Provider Identifier (NPI) is 1639392939, issued on Apr 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Gurfinchel, MD located?
The NPPES record lists a practice address at 3100 Theodore Street, Joliet, IL, 60435. Phone: (815) 744-5550. Providers update this record themselves, so call before visiting.
How can I verify Aaron Gurfinchel, MD's license?
NPPES lists Illinois license number 036103677, 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 Aaron Gurfinchel, MD prescribe under Medicare Part D?
In 2024, Aaron Gurfinchel, MD had 907 Medicare Part D claims for 193 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.