Cassia Victoria Zarzuela, M.D.
Pediatrics Physician · Oswego, IL
Cassia Victoria Zarzuela, M.D. is a pediatrics physician with a practice address in Oswego, Illinois, and NPI 1700012713, issued on Jun 4, 2009. Check the license (Illinois 036123389, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Cassia Victoria Zarzuela
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 036123389 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4789 Route 71, Oswego, IL 60543
- Phone
- (630) 898-5969
- Enumerated
- Jun 4, 2009
- Record last updated
- Jan 11, 2024
- Fax
- (630) 898-5837
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 3,176 in Illinois → Look up another NPI →
Also registered at 4789 Route 71
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Parul Bhatt, MDPediatrics Physician1427234426
- Moreen Butterworth, APRNFamily Nurse Practitioner1750169371
- Paul Granoff, M.D.Pediatrics Physician1861445033
- Wendy Greep, APN-CNPNurse Practitioner1205448636
- Virginia Hathcock, CRNPNurse Practitioner1497020234
- Nicole Hohman, APRN, FNP-BCFamily Nurse Practitioner1710508973
Verify Cassia Victoria Zarzuela 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 036123389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $232.13
13 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,580 providers of this specialty with any payment received $842.05 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.
Cassia Victoria Zarzuela among 3,176 pediatrics physician records in Illinois
Cassia Victoria Zarzuela, M.D. is one of 3,176 pediatrics physician records with a practice address in Illinois. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 55% of them.
- NPI issued2009 · 55% of these records are older, 42% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2024 · 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 208000000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 pediatrics physician records list a practice address in Oswego
They are 10 of the 516 NPPES records with a practice address in Oswego, and 3,176 pediatrics physician records in Illinois.
All 3,176 in Illinois → Every provider in Oswego → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Parul Bhatt, MDOswego, IL 605431427234426
- Karen Chorvat, MDOswego, IL 605431245402932
- Paul Granoff, M.D.Oswego, IL 605431861445033
- Danielle Hyatt, MDOswego, IL 605431013537687
- Nicole Keller, D.O.Oswego, IL 605431316214240
- Nicole PhelpsOswego, IL 605431184086381
- Jerome Skurka, MDOswego, IL 605431871609016
- James Webb, M.D.Oswego, IL 605431205893419
Common questions
What is Cassia Victoria Zarzuela, M.D.'s NPI number?
Cassia Victoria Zarzuela, M.D.'s National Provider Identifier (NPI) is 1700012713, issued on Jun 4, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Cassia Victoria Zarzuela, M.D. located?
The NPPES record lists a practice address at 4789 Route 71, Oswego, IL, 60543. Phone: (630) 898-5969. Providers update this record themselves, so call before visiting.
How can I verify Cassia Victoria Zarzuela, M.D.'s license?
NPPES lists Illinois license number 036123389, 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.
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.