What is Anibal Diaz Santos's NPI number?

Anibal Diaz Santos's National Provider Identifier (NPI) is 1538434402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Anibal Diaz Santos's specialty?

Anibal Diaz Santos is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).

Where is Anibal Diaz Santos located?

Anibal Diaz Santos's practice location on file with NPPES is Calle 3, D-4, Juana Diaz, PR 00795.

What is Anibal Diaz Santos's phone number?

The practice phone number listed in the NPPES registry for Anibal Diaz Santos is (787) 837-2944.

Does Anibal Diaz Santos accept Medicare?

Anibal Diaz Santos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Anibal Diaz Santos's NPI active?

Yes — Anibal Diaz Santos's NPI (1538434402) is active in the NPPES registry as of the last update on 2012-03-12.

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Anibal Diaz Santos, MD

NPI 1538434402 · General Practice Physician · Juana Diaz, PR

Anibal Diaz Santos, MD is a General Practice Physician provider in Juana Diaz, PR (NPI 1538434402).

Provider details

NPI number: 1538434402
Entity type: Individual
Primary specialty: General Practice PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes
License: 18401 (PR)

Practice location

Calle 3, D-4

Ubr. Las Flores

Juana Diaz, PR 00795

Phone: (787) 837-2944

Street-level locationGet directions

More PR providers

Mailing address

Calle 3, D-4

Juana Diaz, PR 00795

Specialties & taxonomies

General Practice PhysicianPrimary208D00000XLicense 18401 (PR)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(83/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure33% of score
14 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
1 documented practice location
Open Payments transparency13% of score
Has Open Payments disclosures (2024)

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Tamsulosin Hcl	83	29
Methylprednisolone	63	59
Orphenadrine Citratebrand: Orphenadrine Citrate Er	51	48
Meloxicam	49	49
Finasteride	40	14
Montelukast Sodium	39	37
Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim	32

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$28 across 1 record (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2012-03-12
Last updated: 2012-03-12

Frequently asked questions

What is Anibal Diaz Santos's NPI number?: Anibal Diaz Santos's National Provider Identifier (NPI) is 1538434402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Anibal Diaz Santos's specialty?: Anibal Diaz Santos is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
Where is Anibal Diaz Santos located?: Anibal Diaz Santos's practice location on file with NPPES is Calle 3, D-4, Juana Diaz, PR 00795.
What is Anibal Diaz Santos's phone number?: The practice phone number listed in the NPPES registry for Anibal Diaz Santos is (787) 837-2944.
Does Anibal Diaz Santos accept Medicare?: Anibal Diaz Santos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Anibal Diaz Santos's NPI active?: Yes — Anibal Diaz Santos's NPI (1538434402) is active in the NPPES registry as of the last update on 2012-03-12.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments