Julio Cesar Castillo, MD
Julio Cesar Castillo is a Pediatrics Physician provider (Pediatrics) practicing in Prosper, TX, registered in the NPPES registry with NPI 1417989203 since 2006. The credential MD stands for Doctor of Medicine. Practices at Cook Childrens Medical Center - Prosper (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1417989203 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Julio Cesar Castillo |
| Credential | MD |
| Sex | Male |
| Practice address | 4100 W UNIVERSITY DR, Prosper, TX, 75078 |
| Phone | 9452044100 |
| Fax | 6828851903 |
| Enumeration date | 2006-07-06 |
| Last updated in NPPES | 2023-02-23 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208000000X | Pediatrics Physician | Primary | P4292 | TX |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Julio Castillo, MD NPI: 1417989203 Taxonomy: 208000000X (Pediatrics Physician) Address: 4100 W UNIVERSITY DR, Prosper, TX, 75078
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1689775603 | Lisa Thompson-Ross | Individual | Pediatric Nurse Practitioner | Prosper, TX |
| 1760523583 | Dirk Verbrugghe | Individual | Pediatric Emergency Medicine (Pediatrics) Physician | Prosper, TX |
| 1790980126 | Michele Young | Individual | Acute Care Nurse Practitioner | Prosper, TX |
| 1821273327 | Stacey Scott | Individual | Acute Care Nurse Practitioner | Prosper, TX |
| 1467774943 | Kristy Bybee | Individual | Pediatric Emergency Medicine (Pediatrics) Physician | Prosper, TX |
| 1417299413 | Shobhit Jain | Individual | Pediatric Emergency Medicine (Pediatrics) Physician | Prosper, TX |
| 1023456431 | Natalie Smith | Individual | Pediatric Emergency Medicine (Pediatrics) Physician | Prosper, TX |
| 1588085856 | Brittany Shore | Individual | Certified Registered Nurse Anesthetist | Prosper, TX |
Verify this record
Cross-check NPI 1417989203 against the authoritative CMS record: view Julio Cesar Castillo on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-02-23.