DR. GONZALO CASTILLO MD
NPI 1407945553
Anesthesiology in Winfield, IL
About Dr. Gonzalo Castillo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GONZALO CASTILLO MD (NPI 1407945553) is an individual anesthesiology provider in Winfield, Illinois, licensed in Illinois (036093077) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and is a graduate of Rush Medical College Of Rush University (1992).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Gonzalo Castillo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Gonzalo Castillo reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Rosemont, IL 60018
- Reassigned Medicare billing, Illinois enrollment
- 60 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Delnor Community Hospital
Acute Care Hospitals · Geneva, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gonzalo Castillo's NPI number?
The NPI number for Gonzalo Castillo is 1407945553. It was assigned to this individual provider in the NPPES registry on October 12, 2006.
Where is Gonzalo Castillo located?
Gonzalo Castillo practices at On025 Winfield Rd., Winfield, IL 60190. The listed phone number is (630) 933-1600.
What is Gonzalo Castillo's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Gonzalo Castillo enrolled in Medicare?
Yes. Gonzalo Castillo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gonzalo Castillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gonzalo Castillo reassigns Medicare benefits to 3 organizations: Central Dupage Physician Group (Carol Stream, IL), Northwestern Medical Faculty Foundation (Carol Stream, IL) and West Central Anesthesiology Group Ltd (Rosemont, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gonzalo Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gonzalo Castillo affiliated with any hospitals?
According to CMS data, Gonzalo Castillo is affiliated with Northwestern Medicine Delnor Community Hospital and Northwestern Medicine Central Dupage Hospital.
When was this NPI record last updated?
The NPPES record for Gonzalo Castillo was last updated on January 4, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Gonzalo Castillo, MD · NPI 1407945553
Anesthesiology physician in Winfield, Illinois. Individual provider, active in the CMS NPPES registry since October 12, 2006.
## Identity
- **NPI:** 1407945553 (Entity type: Individual)
- **Enumerated:** October 12, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036093077 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** ON025 WINFIELD RD., Winfield, IL 60190
- **Phone:** (630) 933-1600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Central Dupage Physician Group (NPI 1033149844, Carol Stream, IL); Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL); West Central Anesthesiology Group Ltd (NPI 1396785648, Rosemont, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 1992
## Record status
- **NPPES last updated:** January 4, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1407945553) · Data from the CMS NPPES public registry.