What is Raul Marquez Santiago's NPI number?

Raul Marquez Santiago's National Provider Identifier (NPI) is 1063406643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Raul Marquez Santiago's specialty?

Raul Marquez Santiago is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Raul Marquez Santiago located?

Raul Marquez Santiago's practice location on file with NPPES is Ave Universidad Inter #112, San German, PR 00683.

What is Raul Marquez Santiago's phone number?

The practice phone number listed in the NPPES registry for Raul Marquez Santiago is (787) 264-0355.

Does Raul Marquez Santiago accept Medicare?

Raul Marquez Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Raul Marquez Santiago's NPI active?

Yes — Raul Marquez Santiago's NPI (1063406643) is active in the NPPES registry as of the last update on 2008-04-18.

IndividualActiveAccepts Medicare

Raul Marquez Santiago

NPI 1063406643 · Gastroenterology Physician · San German, PR

Raul Marquez Santiago is a Gastroenterology Physician provider in San German, PR (NPI 1063406643).

Provider details

NPI number: 1063406643
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Sex: Male
Sole proprietor: No
License: 10595 (PR)

Practice location

Ave Universidad Inter #112

San German, PR 00683

Phone: (787) 264-0355

Fax: (787) 264-0355

More PR providers

Mailing address

Box 5000-349

San German, PUERTO RICO 00683

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense 10595 (PR)
Allopathic & Osteopathic Physicians

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

Profile Score

Established profile(70/100 index)

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

Registry tenure25% of score
21 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
42 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	42	$89

Typical Medicare-allowed amounts for these services range $89–$89 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Famotidine	207	82
Pantoprazole Sodium	191	92
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C	165	162
Sucralfate	113	56
Sodium, Potassium,mag Sulfatesbrand: Suprep	90	88
Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf	29	29
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G

Transparency — industry payments

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

$104 across 4 records (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: 2005-09-09
Last updated: 2008-04-18

Frequently asked questions

What is Raul Marquez Santiago's NPI number?: Raul Marquez Santiago's National Provider Identifier (NPI) is 1063406643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Raul Marquez Santiago's specialty?: Raul Marquez Santiago is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Raul Marquez Santiago located?: Raul Marquez Santiago's practice location on file with NPPES is Ave Universidad Inter #112, San German, PR 00683.
What is Raul Marquez Santiago's phone number?: The practice phone number listed in the NPPES registry for Raul Marquez Santiago is (787) 264-0355.
Does Raul Marquez Santiago accept Medicare?: Raul Marquez Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Raul Marquez Santiago's NPI active?: Yes — Raul Marquez Santiago's NPI (1063406643) is active in the NPPES registry as of the last update on 2008-04-18.

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

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	42	$89

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Famotidine	207	82
Pantoprazole Sodium	191	92
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C	165	162
Sucralfate	113	56
Sodium, Potassium,mag Sulfatesbrand: Suprep	90	88
Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf	29	29
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G

Transparency — industry payments

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

$104 across 4 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

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 does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments