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DR. MARIA D DIAZ M.D
NPI 1639443385
General Practice in San Juan, PR

Active since February 28, 2012PECOS Enrolled
COND MONTEFLORES # 2007, CALLE LAS VIOLETAS 9 B, SAN JUAN, PR 00915(787) 461-3859 Get Directions Write a Review

NPPES record last updated: April 19, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Maria D Diaz M.d NPPES

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

DR. MARIA D DIAZ M.D (NPI 1639443385) is an individual general practice provider in San Juan, Puerto Rico, licensed in Puerto Rico (18405) and active in the NPI registry since February 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639443385
Entity TypeIndividualFemale
Primary Taxonomy208D00000X
Provider Legal NameDR. MARIA D DIAZCredential: M.D
Location AddressCOND MONTEFLORES # 2007, CALLE LAS VIOLETAS 9 BSan Juan, PR 00915-3509
Mailing AddressCond Monteflores # 2007, Calle Las Violetas 9 BSan Juan, PR 00915-3509 · (787) 461-3859
Phone(787) 461-3859
Sole ProprietorYes
Enumeration DateFebruary 28, 2012
Last NPPES UpdateApril 19, 2013
✔ NPI 1639443385 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 · 18405
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
COND MONTEFLORES # 2007, San Juan, PR 00915
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Other Names 1

Former Name (1)Maria D Diaz M.d

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Maria D Diaz M.d 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 Reassignments

2

Medicare enrollment records show Maria Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Centro Medico Del Turabo Inc
16 mi
Multi-Specialty
HIMA SAN PABLO CAGUAS, URB MARIOLGA #100 AVE LUIS MUNOZ MARIN
Caguas, PR 00725
  • Reassigned Medicare billing, Puerto Rico enrollment
  • 428 clinicians in this Medicare group
NPI 1710107883 (787) 653-3434
Gemipsc
Internal Medicine
B41 ELLIOT VELEZ STREET, URB. ATENAS
Manati, PR 00674
  • Reassigned Medicare billing, Puerto Rico enrollment
  • Medicare enrollment name: Gemi Psc
  • 25 clinicians in this Medicare group
NPI 1831592781 (787) 586-1861

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 Maria Diaz's NPI number?

The NPI number for Maria Diaz is 1639443385. It was assigned to this individual provider in the NPPES registry on February 28, 2012. The provider is also known as Maria D Diaz M.D.

Where is Maria Diaz located?

Maria Diaz practices at Cond Monteflores # 2007 Calle Las Violetas 9 B, San Juan, PR 00915. The listed phone number is (787) 461-3859.

What is Maria Diaz's specialty?

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

Is Maria Diaz enrolled in Medicare?

Yes. Maria Diaz is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Maria Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Diaz reassigns Medicare benefits to 2 organizations: Centro Medico Del Turabo Inc (Caguas, PR) and Gemipsc (Manati, 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 Maria 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 Maria Diaz was last updated on April 19, 2013. 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.