DIANA O RIVERA-RUIZ M. D.
NPI 1720311889
Internal Medicine in Juncos, PR
About Diana O Rivera-ruiz M. D. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIANA O RIVERA-RUIZ M. D. (NPI 1720311889) is an individual internal medicine provider in Juncos, Puerto Rico, licensed in Puerto Rico (020202) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Diana O Rivera-ruiz M. D. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Diana Rivera-ruiz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cidra, PR 00739
- Reassigned Medicare billing, Puerto Rico enrollment
- 86 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 00777 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
JUNCOS, PR 00777
JUNCOS, PR 00777
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 Diana Rivera-ruiz's NPI number?
The NPI number for Diana Rivera-ruiz is 1720311889. It was assigned to this individual provider in the NPPES registry on September 8, 2009.
Where is Diana Rivera-ruiz located?
Diana Rivera-ruiz practices at 49 Calle Munoz Rivera, Juncos, PR 00777. The listed phone number is (787) 743-0525.
What is Diana Rivera-ruiz's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Diana Rivera-ruiz enrolled in Medicare?
Yes. Diana Rivera-ruiz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Diana Rivera-ruiz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Rivera-ruiz reassigns Medicare benefits to Cossma Inc (Cidra, PR). 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 Diana Rivera-ruiz'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 Diana Rivera-ruiz was last updated on November 20, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.