MRS. CARMEN J NEGRON MD
NPI 1821013335
Radiology - Diagnostic Ultrasound in San Juan, PR

Q: What is Carmen Negron's NPI number?

The NPI number for Carmen Negron is 1821013335. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Q: What is Carmen Negron's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Ultrasound, with taxonomy code 2085U0001X.

Q: When was this NPI record last updated?

The NPPES record for Carmen Negron was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.

Active since July 13, 2006PECOS Enrolled

AVE DE DIEGO #201, PLAZA SAN FCO OFIC #30, SAN JUAN, PR 00927(787) 751-3587(787) 753-4631 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Mrs. Carmen J Negron Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. CARMEN J NEGRON MD (NPI 1821013335) is an individual diagnostic ultrasound provider in San Juan, Puerto Rico, licensed in Puerto Rico (004746) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821013335

Entity TypeIndividualFemale

Primary Taxonomy2085U0001X

Provider Legal NameMRS. CARMEN J NEGRONCredential: MD

Location AddressAVE DE DIEGO #201, PLAZA SAN FCO OFIC #30San Juan, PR 00927

Mailing Address11 Calle Costa Azul, Paseo Las BrisqsSan Juan, PR 00926 · (787) 760-4232 · Fax (787) 760-4232

Phone(787) 751-3587

Fax(787) 753-4631

Sole ProprietorNo

Enumeration DateJuly 13, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1821013335 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic UltrasoundAllopathic & Osteopathic Physicians

Taxonomy Code2085U0001X

License✔ Licensed in PR · 004746

Definition

A Radiology doctor of Osteopathy that specializes in Diagnostic Ultrasound.

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License 004746 (PR)

Other Identifiers 1

Other27193Triples

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Carmen J Negron Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Carmen Negron reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Roberto J Sein & Rafael M Rivera Ptr

Radiology, Mammography

AVE DE DIEGO #201, PLAZA SAN FRANCISCO OFICE #30
Rio Piedras, PR 00926

Reassigned Medicare billing, Puerto Rico enrollment
10 clinicians in this Medicare group

NPI 1336202753 (787) 753-4631

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 Carmen Negron's NPI number?

The NPI number for Carmen Negron is 1821013335. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is Carmen Negron located?

Carmen Negron practices at Ave De Diego #201 Plaza San Fco Ofic #30, San Juan, PR 00927. The listed phone number is (787) 751-3587.

What is Carmen Negron's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Ultrasound, with taxonomy code 2085U0001X.

Is Carmen Negron enrolled in Medicare?

Yes. Carmen Negron is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Carmen Negron's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carmen Negron reassigns Medicare benefits to Roberto J Sein & Rafael M Rivera Ptr (Rio Piedras, 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 Carmen Negron'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 Carmen Negron was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.