Cassia Zarzuela, M.D.
NPI 1700012713 · Pediatrics Physician · Oswego, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassia Zarzuela, M.D. is a Pediatrics Physician provider in Oswego, IL (NPI 1700012713).
Provider details
- NPI number
- 1700012713
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036123389 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$232 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 4440 W 95th St Ste 2177hOak Lawn, IL 60453-2600Phone: (708) 684-5341Fax: (708) 684-4716
- 7600 W College DrPalos Heights, IL 60463-1001Phone: (708) 448-2438Fax: (708) 448-2482
Registry dates
- Enumerated
- 2009-06-04
- Last updated
- 2024-01-11
- Certified
- 2024-01-11
Frequently asked questions
- What is Cassia Zarzuela's NPI number?
- Cassia Zarzuela's National Provider Identifier (NPI) is 1700012713, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassia Zarzuela's specialty?
- Cassia Zarzuela is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Cassia Zarzuela located?
- Cassia Zarzuela's practice location on file with NPPES is 4789 Route 71, Oswego, IL 60543-7415.
- What is Cassia Zarzuela's phone number?
- The practice phone number listed in the NPPES registry for Cassia Zarzuela is (630) 898-5969.
- Does Cassia Zarzuela accept Medicare?
- Cassia Zarzuela is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassia Zarzuela's NPI active?
- Yes — Cassia Zarzuela's NPI (1700012713) is active in the NPPES registry as of the last update on 2024-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.