ULTRASONIDO DIAGNOSTICO
NPI 1336202753
Clinic/Center - Radiology, Mammography in Rio Piedras, PR
About Ultrasonido Diagnostico NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ULTRASONIDO DIAGNOSTICO (NPI 1336202753) is a healthcare organization registered as a radiology, mammography in Rio Piedras, Puerto Rico and active in the NPI registry since December 2006. The organization lists Roberto J Sein, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ultrasonido Diagnostico is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
10Medicare enrollment records show 10 clinicians reassign Medicare billing to Ultrasonido Diagnostico, which bills Medicare for the services they deliver. Of these, 4 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (10)
San Juan, PR 00921
San Juan, PR 00921
San Juan, PR 00927
San Juan, PR 00909
San Juan, PR 00921
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 Roberto J Sein & Rafael M Rivera Ptr's NPI number?
The NPI number for Roberto J Sein & Rafael M Rivera Ptr is 1336202753. It was assigned to this organization in the NPPES registry on December 18, 2006. The provider is doing business as Ultrasonido Diagnostico.
Where is Roberto J Sein & Rafael M Rivera Ptr located?
Roberto J Sein & Rafael M Rivera Ptr is located at Ave De Diego #201 Plaza San Francisco Ofice #30, Rio Piedras, PR 00926. The listed phone number is (787) 753-4631.
What is Roberto J Sein & Rafael M Rivera Ptr's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Radiology, Mammography, with taxonomy code 261QR0206X.
Is Roberto J Sein & Rafael M Rivera Ptr enrolled in Medicare?
Yes. Roberto J Sein & Rafael M Rivera Ptr is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Roberto J Sein & Rafael M Rivera Ptr?
According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians, all in Diagnostic Radiology, reassign their Medicare billing to Roberto J Sein & Rafael M Rivera Ptr. 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. Of these, 4 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Roberto J Sein & Rafael M Rivera Ptr was last updated on January 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Ultrasonido Diagnostico · NPI 1336202753
Radiology, Mammography organization in Rio Piedras, Puerto Rico. Organization record, active in the CMS NPPES registry since December 18, 2006.
## Identity
- **NPI:** 1336202753 (Entity type: Organization)
- **Enumerated:** December 18, 2006
- **Primary specialty:** Clinic/Center - Radiology, Mammography · taxonomy 261QR0206X
- **Legal business name:** Roberto J Sein & Rafael M Rivera Ptr
- **Organization subpart:** No
- **Authorized official:** Roberto Sein, PRESIDENT
## Practice location
- **Address:** AVE DE DIEGO #201, PLAZA SAN FRANCISCO OFICE #30, Rio Piedras, PR 00926
- **Phone:** (787) 753-4631
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 10 clinicians (Diagnostic Radiology) reassign Medicare billing to this organization (form CMS-855R); 4 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 28, 2011
- **Other identifiers:** Medicare ID-Type Unspecified 27499 (PR); Medicare UPIN C77543 (PR)
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Source: [NPI Profile](https://npiprofile.com/npi/1336202753) · Data from the CMS NPPES public registry.