ROSA A LOZADA SIERRA, LLC
NPI 1780339622
Ophthalmology - Cornea and External Diseases Specialist in Hato Rey, PR
About Rosa A Lozada Sierra, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROSA A LOZADA SIERRA, LLC (NPI 1780339622) is a healthcare organization registered as a cornea and external diseases specialist in Hato Rey, Puerto Rico and active in the NPI registry since February 2022. The organization lists Rosa A Lozada Sierra, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Rosa A Lozada Sierra, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Rosa A Lozada Sierra, LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Rosa A Lozada Sierra, LLC's NPI number?
The NPI number for Rosa A Lozada Sierra, LLC is 1780339622. It was assigned to this organization in the NPPES registry on February 18, 2022.
Where is Rosa A Lozada Sierra, LLC located?
Rosa A Lozada Sierra, LLC is located at Ave. Ponce De Leon #708 Ste 202, Hato Rey, PR 00918. The listed phone number is (787) 250-0812.
What is Rosa A Lozada Sierra, LLC's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.
Is Rosa A Lozada Sierra, LLC enrolled in Medicare?
Yes. Rosa A Lozada Sierra, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Rosa A Lozada Sierra, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Rosa A Lozada Sierra, LLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Rosa A Lozada Sierra, LLC was last updated on February 18, 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.
# Rosa A Lozada Sierra, Llc · NPI 1780339622
Cornea and External Diseases Specialist organization in Hato Rey, Puerto Rico. Organization record, active in the CMS NPPES registry since February 18, 2022.
## Identity
- **NPI:** 1780339622 (Entity type: Organization)
- **Enumerated:** February 18, 2022
- **Primary specialty:** Ophthalmology - Cornea and External Diseases Specialist · taxonomy 207WX0120X
- **Organization subpart:** No
- **Authorized official:** Rosa Lozada Sierra, PRESIDENT
## Practice location
- **Address:** AVE. PONCE DE LEON #708, STE 202, Hato Rey, PR 00918
- **Phone:** (787) 250-0812
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Ophthalmology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 18, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1780339622) · Data from the CMS NPPES public registry.