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DR. DIANA KRYSTINA NIEVES CASTRO MD
NPI 1922842756
General Practice in Mayaguez, PR

Active since June 25, 2024PECOS Enrolled
10 CALLE BOSQUE APT 208, MAYAGUEZ, PR 00680(787) 431-3063 Get Directions Write a Review

NPPES record last updated: July 20, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 20, 2024, Jun 25, 2024 (2 updates tracked since 2024).

About Dr. Diana Krystina Nieves Castro Md NPPES

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

DR. DIANA KRYSTINA NIEVES CASTRO MD (NPI 1922842756) is an individual general practice provider in Mayaguez, Puerto Rico, licensed in Puerto Rico (24027) and active in the NPI registry since June 2024. She is enrolled in Medicare PECOS and is a graduate of San Juan Bautista School Of Medicine (2021).

NPPES Registry Identity

NPI1922842756
Entity TypeIndividualFemale
Primary Taxonomy208D00000X
Provider Legal NameDR. DIANA KRYSTINA NIEVES CASTROCredential: MD
Location Address10 CALLE BOSQUE APT 208Mayaguez, PR 00680-6750
Mailing Address10 Calle Bosque 208Mayaguez, PR 00680-6750
Phone(787) 431-3063
Sole ProprietorYes
Medical School CMSSan Juan Bautista School Of MedicineGraduated 2021
Enumeration DateJune 25, 2024
Last NPPES UpdateJuly 20, 20242 updates tracked since enumeration
NPPES CertifiedJuly 20, 2024
✔ NPI 1922842756 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in PR · 24027
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Diana Krystina Nieves Castro Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID648754606
PECOS Enrollment IDI20260318002389
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 Diana Nieves Castro reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Neomed Center, Inc
Federally Qualified Health Center (FQHC)
941 SAN ANTONIO FINAL ST RT, SALIDA BARRIO JAGUAS
Gurabo, PR 00778
  • Reassigned Medicare billing, Puerto Rico enrollment
  • 119 clinicians in this Medicare group
NPI 1790776334 (787) 737-2311

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 Diana Nieves Castro's NPI number?

The NPI number for Diana Nieves Castro is 1922842756. It was assigned to this individual provider in the NPPES registry on June 25, 2024.

Where is Diana Nieves Castro located?

Diana Nieves Castro practices at 10 Calle Bosque Apt 208, Mayaguez, PR 00680. The listed phone number is (787) 431-3063.

What is Diana Nieves Castro's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Diana Nieves Castro enrolled in Medicare?

Yes. Diana Nieves Castro is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diana Nieves Castro's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Nieves Castro reassigns Medicare benefits to Neomed Center, Inc (Gurabo, 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 Nieves Castro'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 Nieves Castro was last updated on July 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.