SOFIA MARGARITA LOPEZ DIAZ MD
NPI 1275063505
Obstetrics & Gynecology in San Juan, PR
About Sofia Margarita Lopez Diaz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOFIA MARGARITA LOPEZ DIAZ MD (NPI 1275063505) is an individual obstetrics & gynecology provider in San Juan, Puerto Rico, licensed in Puerto Rico (23081) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS and is a graduate of San Juan Bautista School Of Medicine (2017).
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 and accepts Medicare assignment
Sofia Margarita Lopez Diaz 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 Reassignments
3Medicare enrollment records show Sofia Lopez Diaz reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bayamon, PR 00959
- Reassigned Medicare billing, Puerto Rico enrollment
- 75 clinicians in this Medicare group
Voorhees, NJ 08043
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Regional Womens Health Group LLC
- 307 clinicians in this Medicare group
San Juan, PR 00907
- Reassigned Medicare billing, Puerto Rico enrollment
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 00917 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN JUAN, PR 00917
SAN JUAN, PR 00917
SAN JUAN, PR 00917
SAN JUAN, PR 00917
SAN JUAN, PR 00917
SAN JUAN, PR 00917
SAN JUAN, PR 00917
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 Sofia Lopez Diaz's NPI number?
The NPI number for Sofia Lopez Diaz is 1275063505. It was assigned to this individual provider in the NPPES registry on June 19, 2017.
Where is Sofia Lopez Diaz located?
Sofia Lopez Diaz practices at Puerto Rico Medical Center Bo Monacillos, San Juan, PR 00917. The listed phone number is (787) 480-2791.
What is Sofia Lopez Diaz's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Sofia Lopez Diaz enrolled in Medicare?
Yes. Sofia Lopez Diaz 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 organizations bill Medicare for Sofia Lopez Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sofia Lopez Diaz reassigns Medicare benefits to 3 organizations: Clinica Las Americas Guaynabo, Inc (Bayamon, PR), Regional Women's Health Group, LLC (Voorhees, NJ) and Sld Obgyn LLC (San Juan, PR). Each 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 Sofia Lopez Diaz'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 Sofia Lopez Diaz was last updated on August 2, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Sofia Margarita Lopez Diaz, MD · NPI 1275063505
Obstetrics & Gynecology physician in San Juan, Puerto Rico. Individual provider, active in the CMS NPPES registry since June 19, 2017.
## Identity
- **NPI:** 1275063505 (Entity type: Individual)
- **Enumerated:** June 19, 2017
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 23081 (Puerto Rico)
- **Sole proprietor:** Yes
## Practice location
- **Address:** PUERTO RICO MEDICAL CENTER, BO MONACILLOS, San Juan, PR 00917
- **Phone:** (787) 480-2791
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Clinica Las Americas Guaynabo, Inc (NPI 1033508197, Bayamon, PR); Regional Women's Health Group, LLC (NPI 1548215536, Voorhees, NJ); Sld Obgyn LLC (NPI 1457184921, San Juan, PR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** San Juan Bautista School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** August 2, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1275063505) · Data from the CMS NPPES public registry.