DR. WALDO SANTIAGO MONTALVO M.D.
NPI 1386624716
Internal Medicine - Gastroenterology in Aguadilla, PR

Active since January 20, 2006PECOS EnrolledAccepts Medicare Assignment
23 CALLE SEVERIANO CUEVAS, AGUADILLA, PR 00603(787) 882-2929(787) 882-2929 Get Directions Write a Review

NPPES record last updated: October 24, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Waldo Santiago Montalvo M.d. NPPES

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

DR. WALDO SANTIAGO MONTALVO M.D. (NPI 1386624716) is an individual gastroenterology provider in Aguadilla, Puerto Rico, licensed in Puerto Rico (10425) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Hospital San Carlos Borromeo, and is a graduate of University Central Del Caribe Escuela De Medicina (1986).

NPPES Registry Identity

NPI1386624716
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. WALDO SANTIAGO MONTALVOCredential: M.D.
Location Address23 CALLE SEVERIANO CUEVASAguadilla, PR 00603-5713
Mailing AddressPo Box 633Cabo Rojo, PR 00623-0633 · (787) 882-2929 · Fax (787) 819-0130
Fax(787) 882-2929
Sole ProprietorYes
Medical School CMSUniversity Central Del Caribe Escuela De MedicinaGraduated 1986
Enumeration DateJanuary 20, 2006
Last NPPES UpdateOctober 24, 2016
NPI 1386624716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in PR · 10425
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Other Identifiers 2

Medicare UPING41600PR
Medicare ID-Type Unspecified84237PR · Gastroenterologist

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Waldo Santiago Montalvo 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 ID8729262803
PECOS Enrollment IDI20110414000307
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hospital San Carlos Borromeo

Acute Care Hospitals · Moca, PR
OwnershipVoluntary non-profit - Private
CMS Certification Number400111
LocationCalle Concepcion Vera Ayala #550 SMoca, PR 00676 · Moca County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00603 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.

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 Waldo Santiago Montalvo's NPI number?

The NPI number for Waldo Santiago Montalvo is 1386624716. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Where is Waldo Santiago Montalvo located?

Waldo Santiago Montalvo practices at 23 Calle Severiano Cuevas, Aguadilla, PR 00603. The listed phone number is (787) 882-2929.

What is Waldo Santiago Montalvo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Waldo Santiago Montalvo enrolled in Medicare?

Yes. Waldo Santiago Montalvo 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.

Is Waldo Santiago Montalvo affiliated with any hospitals?

According to CMS data, Waldo Santiago Montalvo is affiliated with Hospital San Carlos Borromeo.

When was this NPI record last updated?

The NPPES record for Waldo Santiago Montalvo was last updated on October 24, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.