Katherine Nonna Parenti, MD
Family Medicine Physician · Hoffman Estates, IL
Katherine Nonna Parenti, MD is a family medicine physician with a practice address in Hoffman Estates, Illinois, and NPI 1922264605, issued on Aug 1, 2008. Check the license (Illinois 036-124528, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katherine Nonna Parenti
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036-124528 IL
125-052839 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2359 Hassell RD, Hoffman Estates, IL 60169
- Phone
- (630) 469-9200
- Enumerated
- Aug 1, 2008
- Record last updated
- Aug 16, 2023
- Medicare enrollment
- Enrolled (PECOS I20100811001029); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 2359 Hassell RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeanette Ackland, APRNNurse Practitioner1902625585
- Khursheed Ahmed, MDInternal Medicine Physician1619917523
- Saba Ahmed, DOFamily Medicine Physician1609339829
- Aelia Akbar, MDInternal Medicine Physician1164092060
- Katie Akers, APNNurse Practitioner1467920009
- Carl Albun, M.D.Gastroenterology Physician1457332231
Verify Katherine Nonna Parenti 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 036-124528Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average family medicine physician in 2024
4,708 Medicare Part D claims for 497 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Atorvastatin Calcium515 claims
- Levothyroxine Sodium359 claims
- Amlodipine Besylate313 claims
- Losartan Potassium250 claims
- Lisinopril219 claims
- Rosuvastatin Calcium153 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: $27.38
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 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
- Dupage Medical Group LtdSchaumburg, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Nonna Parenti among 6,215 family medicine physician records in Illinois
Katherine Nonna Parenti, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2006 among the 3,714 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Hoffman Estates
They are 23 of the 1,293 NPPES records with a practice address in Hoffman Estates, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Hoffman Estates → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sonia Abraham, MDHoffman Estates, IL 601691881824704
- Laura Baber, MDHoffman Estates, IL 601691134192636
- David Barnes, DOHoffman Estates, IL 601691275526741
- Calvin Fischer, D.O.Hoffman Estates, IL 601691932227725
- Roseann Gager, M.D.Hoffman Estates, IL 601691053569327
- Regeni George-Brown, M.D.Hoffman Estates, IL 601691912104340
- Shruti Gupta, MDHoffman Estates, IL 601691811256399
- Janice Ko, M.D.Hoffman Estates, IL 601691124348339
Common questions
What is Katherine Nonna Parenti, MD's NPI number?
Katherine Nonna Parenti, MD's National Provider Identifier (NPI) is 1922264605, issued on Aug 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Nonna Parenti, MD located?
The NPPES record lists a practice address at 2359 Hassell RD, Hoffman Estates, IL, 60169. Phone: (630) 469-9200. Providers update this record themselves, so call before visiting.
How can I verify Katherine Nonna Parenti, MD's license?
NPPES lists Illinois license number 036-124528, 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 Katherine Nonna Parenti, MD prescribe under Medicare Part D?
In 2024, Katherine Nonna Parenti, MD had 4,708 Medicare Part D claims for 497 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.