Ryan Cullen, MD
Nephrology Physician · Evanston, IL
Ryan Cullen, MD is a nephrology physician with a practice address in Evanston, Illinois, and NPI 1538782636, issued on May 22, 2020. Check the license (Illinois 036174068, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ryan Cullen
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 036174068 IL
11023195A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Central St Ste 800, Evanston, IL 60201
- Phone
- (847) 570-2512
- Enumerated
- May 22, 2020
- Record last updated
- May 15, 2025
- Fax
- (847) 570-1696
- Medicare enrollment
- Enrolled (PECOS I20250522000230); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2020
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 1000 Central St Ste 800
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Acree, M.D.Infectious Disease Physician1336378348
- Vincent Biank, MDPediatric Gastroenterology Physician1811948243
- Christina Boutsicaris, MDRheumatology Physician1063832996
- Jyoti Eknoor Brar, M.B.B.S.Nephrology Physician1609193028
- Jeffrey Brow, DORheumatology Physician1811481062
- Franco Campanella, D.O.Neurology Physician1609886332
Verify Ryan Cullen 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 036174068Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average nephrology physician in 2024
46 Medicare Part D claims for 17 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Endeavor Health Medical GroupEvanston, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Cullen among 572 nephrology physician records in Illinois
Ryan Cullen, 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 2020, is newer than 92% of them.
- NPI issued2020 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2020 · 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 Evanston → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Jyoti Eknoor Brar, M.B.B.S.Evanston, IL 602011609193028
- Louisa Ho, MDEvanston, IL 602011932122322
- George Kim, MDEvanston, IL 602011548280605
- Kevin Nash, MDEvanston, IL 602011518988260
- Liliana Osadchuk, M.D.Evanston, IL 602011255643987
- Subramanyam Santhanam, MDEvanston, IL 602011225112741
- Stuart Sprague, DOEvanston, IL 602011114947124
- Ajit Kesani, M.D.Evanston, IL 602021043269210
Common questions
What is Ryan Cullen, MD's NPI number?
Ryan Cullen, MD's National Provider Identifier (NPI) is 1538782636, issued on May 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Cullen, MD located?
The NPPES record lists a practice address at 1000 Central St Ste 800, Evanston, IL, 60201. Phone: (847) 570-2512. Providers update this record themselves, so call before visiting.
How can I verify Ryan Cullen, MD's license?
NPPES lists Illinois license number 036174068, 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 Cullen, MD prescribe under Medicare Part D?
In 2024, Ryan Cullen, MD had 46 Medicare Part D claims for 17 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.