Jillian Kateri Warejko-Rossi, MD
Pediatric Nephrology Physician · New Haven, CT
Jillian Kateri Warejko-Rossi, MD is a pediatric nephrology physician with a practice address in New Haven, Connecticut, and NPI 1811284920, issued on Jul 9, 2011. Check the license (Connecticut 56725, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jillian Kateri Warejko-Rossi
- Credential
- MD
- Primary taxonomy
- Pediatric Nephrology Physician 2080P0210X
- License number
- 56725 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1 Park Street, New Haven, CT 06510
- Phone
- (203) 785-4081
- Enumerated
- Jul 9, 2011
- Record last updated
- Jan 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20170911000282); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2011
- Entity
- Type 1 · individual
8 nearest pediatric nephrology physician records → All 17 in Connecticut → Look up another NPI →
Also registered at 1 Park Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cheyenne Beach, M.D.Pediatric Cardiology Physician1376854422
- Britton Keeshan, MD, MPHPediatric Cardiology Physician1881906147
- Samantha Pepe, AUDAudiologist1033803291
Verify Jillian Kateri Warejko-Rossi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 56725Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average pediatric nephrology physician in 2024
11 Medicare Part D claims, against an average of 67 among the 387 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jillian Kateri Warejko-Rossi among 17 pediatric nephrology physician records in Connecticut
Jillian Kateri Warejko-Rossi, MD is one of 17 pediatric nephrology physician records with a practice address in Connecticut. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 53% of them.
- NPI issued2011 · 53% of these records are older, 41% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2011 · median 2011 among the 10 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0210X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Nephrology Physician providers in Connecticut
There are 17 pediatric nephrology physician records in Connecticut.
All 17 in Connecticut → Every provider in New Haven → Pediatric Nephrology Physician nationwide →
The 8 pediatric nephrology physician records with the nearest ZIP codes
- Cynthia D'Alessandri-Silva, M.D.New Haven, CT 065101053559062
- Sandra Iragorri, M.D.New Haven, CT 065101912982463
- Hetal Kocinsky, MDNew Haven, CT 065101407830367
- James Nugent, M.D.New Haven, CT 065101144660549
- Chelsea Young, MDNew Haven, CT 065101609366194
- Jason Greenberg, M.D.New Haven, CT 065151497082648
- Christine BakhoumNew Haven, CT 065041063806024
- Alda Tufro, MD,PH.DNew Haven, CT 065041194801043
Common questions
What is Jillian Kateri Warejko-Rossi, MD's NPI number?
Jillian Kateri Warejko-Rossi, MD's National Provider Identifier (NPI) is 1811284920, issued on Jul 9, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Jillian Kateri Warejko-Rossi, MD located?
The NPPES record lists a practice address at 1 Park Street, New Haven, CT, 06510. Phone: (203) 785-4081. Providers update this record themselves, so call before visiting.
How can I verify Jillian Kateri Warejko-Rossi, MD's license?
NPPES lists Connecticut license number 56725, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jillian Kateri Warejko-Rossi, MD prescribe under Medicare Part D?
In 2024, Jillian Kateri Warejko-Rossi, MD had 11 Medicare Part D claims; the average among pediatric nephrology physician prescribers was 67. Part D covers Medicare prescriptions only.
What is Jillian Kateri Warejko-Rossi, MD's MIPS final score?
The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.