DR. XAVIER E. SANTIAGO-ALBIZU M.D.
NPI 1356627657
Internal Medicine in Santurce, PR

Q: What is Xavier Santiago-albizu's NPI number?

The NPI number for Xavier Santiago-albizu is 1356627657. It was assigned to this individual provider in the NPPES registry on October 31, 2011.

Q: What is Xavier Santiago-albizu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since October 31, 2011PECOS EnrolledAccepts Medicare Assignment

607 AVE CONDADO, CONDOMINO CONDADO OFICINA 401, SANTURCE, PR 00907(787) 234-2535 Get Directions Write a Review

NPPES record last updated: July 22, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Xavier E. Santiago-albizu M.d. NPPES

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

DR. XAVIER E. SANTIAGO-ALBIZU M.D. (NPI 1356627657) is an individual internal medicine provider in Santurce, Puerto Rico, licensed in Puerto Rico (19,926) and active in the NPI registry since October 2011. He is enrolled in Medicare PECOS and is a graduate of University Of Puerto Rico School Of Medicine (2011).

NPPES Registry Identity

NPI1356627657

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. XAVIER E. SANTIAGO-ALBIZUCredential: M.D.

Location Address607 AVE CONDADO, CONDOMINO CONDADO OFICINA 401Santurce, PR 00907-3845

Mailing Address607 Calle Condado Ofic 401, Condominio CondadoSanturce, PR 00907 · (787) 234-2535

Phone(787) 234-2535

Sole ProprietorYes

Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 2011

Enumeration DateOctober 31, 2011

Last NPPES UpdateJuly 22, 2015

✔ NPI 1356627657 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in PR · 19,926

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedAcupuncturistTaxonomy 171100000X · License 002548 (NY)

607 AVE CONDADO, Santurce, PR 00907

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Xavier E. Santiago-albizu M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID345550729

PECOS Enrollment IDI20151116001014

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

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

Hospital Menonita De Cayey

Specialist

RINCO INTERIOR 14ST
Cayey, PR 00737

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

NPI 1255461893 (787) 535-1001

Mennonite General Hospital Inc

Specialist

CALLE JOSE C VAZQUEZ, BO CAONILLAS
Aibonito, PR 00705

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

NPI 1043347768 (787) 535-1001

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00907 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$130.65 typical visit price

range $56.86 – $172.44

Typical copayment $32.66 (range $14.21 – $43.11)

Most-billed visit code 99204

Established Patient

$100.24 typical visit price

range $18.24 – $140.44

Typical copayment $25.06 (range $4.56 – $35.11)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DOMINGO J. MARQUES PSY.D.

Psychologist (Clinical)

607 AVE CONDADO, CONDOMINIO CONDADO 401
SANTURCE, PR 00907

San Juan Municipio (787) 725-5013

DR. ROSAMARI PENA PSY.D.

Psychologist

607 AVE CONDADO, COND. CONDADO STE. 401
SANTURCE, PR 00907

San Juan Municipio (787) 361-9205

RED METROPOLITANA DE PSICOLOGIA, CSP

Psychologist (Clinical)

607 AVE CONDADO, CONDOMINIO CONDADO SUITE 401
SANTURCE, PR 00907

San Juan Municipio (787) 725-5013

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 Xavier Santiago-albizu's NPI number?

The NPI number for Xavier Santiago-albizu is 1356627657. It was assigned to this individual provider in the NPPES registry on October 31, 2011.

Where is Xavier Santiago-albizu located?

Xavier Santiago-albizu practices at 607 Ave Condado Condomino Condado Oficina 401, Santurce, PR 00907. The listed phone number is (787) 234-2535.

What is Xavier Santiago-albizu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Xavier Santiago-albizu enrolled in Medicare?

Yes. Xavier Santiago-albizu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Xavier Santiago-albizu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Xavier Santiago-albizu reassigns Medicare benefits to 2 organizations: Hospital Menonita De Cayey (Cayey, PR) and Mennonite General Hospital Inc (Aibonito, 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 Xavier Santiago-albizu'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 Xavier Santiago-albizu was last updated on July 22, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.