Isabella Castilla
NPI 1538950399 · Physician Assistant · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabella Castilla is a Physician Assistant provider in Chicago, IL (NPI 1538950399).
Provider details
- NPI number
- 1538950399
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-05-13
- Last updated
- 2025-05-13
- Certified
- 2025-05-13
Frequently asked questions
- What is Isabella Castilla's NPI number?
- Isabella Castilla's National Provider Identifier (NPI) is 1538950399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabella Castilla's specialty?
- Isabella Castilla is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Isabella Castilla located?
- Isabella Castilla's practice location on file with NPPES is 1430 N Bosworth Ave, Chicago, IL 60642-7598.
- What is Isabella Castilla's phone number?
- The practice phone number listed in the NPPES registry for Isabella Castilla is (847) 971-7067.
- Does Isabella Castilla accept Medicare?
- Isabella Castilla is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabella Castilla's NPI active?
- Yes — Isabella Castilla's NPI (1538950399) is active in the NPPES registry as of the last update on 2025-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.