STEPHANIE CASTILLO MD
NPI 1902330723
Family Medicine - Addiction Medicine in San Ysidro, CA
About Stephanie Castillo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHANIE CASTILLO MD (NPI 1902330723) is an individual addiction medicine provider in San Ysidro, California, licensed in California (A159673) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Stephanie 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 Reassignment
Medicare enrollment records show Stephanie Castillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92173
- Reassigned Medicare billing, California enrollment
- 577 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92173 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN DIEGO, CA 92173
SAN DIEGO, CA 92173
SAN DIEGO, CA 92173
SAN YSIDRO, CA 92173
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 Stephanie Castillo's NPI number?
The NPI number for Stephanie Castillo is 1902330723. It was assigned to this individual provider in the NPPES registry on April 18, 2017.
Where is Stephanie Castillo located?
Stephanie Castillo practices at 1601 Precision Park Ln, San Ysidro, CA 92173. The listed phone number is (619) 662-4100.
What is Stephanie Castillo's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Addiction Medicine, with taxonomy code 207QA0401X.
Is Stephanie Castillo enrolled in Medicare?
Yes. Stephanie 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 organization bills Medicare for Stephanie Castillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Castillo reassigns Medicare benefits to Centro De Salud De La Comunidad De San Ysidro, Inc. (San Diego, CA). The 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 Stephanie Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Stephanie Castillo was last updated on August 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Stephanie Castillo, MD · NPI 1902330723
Addiction Medicine physician in San Ysidro, California. Individual provider, active in the CMS NPPES registry since April 18, 2017.
## Identity
- **NPI:** 1902330723 (Entity type: Individual)
- **Enumerated:** April 18, 2017
- **Primary specialty:** Family Medicine - Addiction Medicine · taxonomy 207QA0401X
- **State license:** A159673 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1601 PRECISION PARK LN, San Ysidro, CA 92173-1345
- **Phone:** (619) 662-4100
## 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:** Centro De Salud De La Comunidad De San Ysidro, Inc. (NPI 1124782685, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** August 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1902330723) · Data from the CMS NPPES public registry.