CASTLE HILLS DERMATOLOGY CLINIC
NPI 1013320258
Dermatology in San Antonio, TX
About Castle Hills Dermatology Clinic NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CASTLE HILLS DERMATOLOGY CLINIC (NPI 1013320258) is a healthcare organization registered as a dermatology in San Antonio, Texas and active in the NPI registry since June 2014. The organization holds 3 active CLIA laboratory certificates, maintains 2 additional practice locations, and lists Christy Shaffer Rainey, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 2
Secondary Practice Locations 2
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Castle Hills Dermatology Clinic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
5Medicare enrollment records show 5 clinicians reassign Medicare billing to Castle Hills Dermatology Clinic, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.
Clinicians, nearest first (5)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA 3
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 45D2246248
Downtown Dermatology PLLC Dba Rfsa Dermatology · San Antonio, TXCertificate of Waiver 45D2246201
Downtown Dermatology PLLC Dba Rfsa Dermatology · Floresville, TXCertificate for Provider-Performed Microscopy Procedures (PPMP) 45D2124797
Downtown Dermatology PLLC · San Antonio, TXFrequently 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 Downtown Dermatology PLLC's NPI number?
The NPI number for Downtown Dermatology PLLC is 1013320258. It was assigned to this organization in the NPPES registry on June 5, 2014. The provider is doing business as Castle Hills Dermatology Clinic and RFSA Dermatology.
Where is Downtown Dermatology PLLC located?
Downtown Dermatology PLLC is located at 4118 Mccullough Ave Ste 18, San Antonio, TX 78212. The listed phone number is (210) 901-9353.
What is Downtown Dermatology PLLC's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is Downtown Dermatology PLLC enrolled in Medicare?
Yes. Downtown Dermatology PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Downtown Dermatology PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Downtown Dermatology PLLC. A 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 the clinician's services. The largest specialties are Dermatology (3) and Nurse Practitioner (2). Of these, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Downtown Dermatology PLLC hold CLIA laboratory certificates?
Yes. 3 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.
What insurance does Downtown Dermatology PLLC accept?
Health plans from Imperial Insurance Companies, Inc. and WellPoint list Downtown Dermatology PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Downtown Dermatology PLLC was last updated on March 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Castle Hills Dermatology Clinic · NPI 1013320258
Dermatology organization in San Antonio, Texas. Organization record, active in the CMS NPPES registry since June 5, 2014.
## Identity
- **NPI:** 1013320258 (Entity type: Organization)
- **Enumerated:** June 5, 2014
- **Primary specialty:** Dermatology · taxonomy 207N00000X
- **Legal business name:** Downtown Dermatology Pllc
- **Also known as:** RFSA Dermatology (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Christy Rainey, PRESIDENT
## Practice location
- **Address:** 4118 MCCULLOUGH AVE STE 18, San Antonio, TX 78212-1905
- **Phone:** (210) 901-9353 · **Fax:** (210) 227-4297
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 5 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Dermatology (3), Nurse Practitioner (2); 1 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 25, 2022
- **Other identifiers:** Medicaid 339660801 (TX)
- **CLIA laboratory certificates:** 3 on file
---
Source: [NPI Profile](https://npiprofile.com/npi/1013320258) · Data from the CMS NPPES public registry.