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MR. GABRIEL MONTALVO-CASTRO M.D.
NPI 1851704589
General Practice in Bayamon, PR

Active since June 10, 2014PECOS Enrolled
66 CALLE SANTA CRUZ, INSTITUTO SAN PABLO SUITE 307, BAYAMON, PR 00961(787) 798-8486(787) 740-7170 Get Directions Write a Review

NPPES record last updated: February 21, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 19, 2022, Apr 22, 2022, Aug 3, 2021 and 3 more (6 updates tracked since 2017).

About Mr. Gabriel Montalvo-castro M.d. NPPES

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

MR. GABRIEL MONTALVO-CASTRO M.D. (NPI 1851704589) is an individual general practice provider in Bayamon, Puerto Rico, licensed in Puerto Rico (19155) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS and maintains a secondary practice location in Toa Baja.

NPPES Registry Identity

NPI1851704589
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameMR. GABRIEL MONTALVO-CASTROCredential: M.D.
Location Address66 CALLE SANTA CRUZ, INSTITUTO SAN PABLO SUITE 307Bayamon, PR 00961
Mailing AddressPo Box 360160San Juan, PR 00936-0160 · (787) 787-5151
Phone(787) 798-8486
Fax(787) 740-7170
Sole ProprietorYes
Enumeration DateJune 10, 2014
Last NPPES UpdateFebruary 21, 20246 updates tracked since enumeration
NPPES CertifiedFebruary 21, 2024
✔ NPI 1851704589 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
Licenses✔ Licensed in PR · 19155✔ Licensed in FL · ME141853✔ Licensed in NY · 316085
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

Secondary Practice Location 1

Location 1Hf16 Calle Lizzie GrahamToa Baja, PR 00949-3634 · Phone (293) 578-7795

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Gabriel Montalvo-castro 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 Reassignment

Medicare enrollment records show Gabriel Montalvo-castro reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Integrate Community Health System
Internal Medicine
4 CALLE GARCIA, URB SANTA CRUZ
Bayamon, PR 00956
  • Reassigned Medicare billing, Puerto Rico enrollment
  • 52 clinicians in this Medicare group
NPI 1003227125 (787) 772-9850

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

Other Providers at the Same Location NPPES 20

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

BAYAMON ONCOLOGY MEDICAL CSP
Clinic/Center (Oncology)
66 CALLE SANTA CRUZ, INST. SAN PABLO SUITE 509
BAYAMON, PR 00961
Bayamón Municipio (787) 269-4740
MR. RENE E PEREZ RIOS MD
Internal Medicine (Cardiovascular Disease)
66 CALLE SANTA CRUZ, INST SAN PABLO OFIC 202
BAYAMON, PR 00961
Bayamón Municipio (787) 798-6550
DR. ENRIQUE FRANCISCO BOSCH-GONSALVEZ M.D.
Pediatrics
66 CALLE SANTA CRUZ, INST. SAN PABLO SUITE 410
BAYAMON, PR 00961
Bayamón Municipio (787) 786-9008
DR. MARIO ESPINOSA GARCIA MD
Internal Medicine (Pulmonary Disease)
66 CALLE SANTA CRUZ, SUITE 404 INSTITUTO SAN PABLO
BAYAMON, PR 00961
Bayamón Municipio (787) 449-4486
ROGER POLISH P.S.C.
Clinic/Center (Medical Specialty)
66 CALLE SANTA CRUZ, INSTITUTO SAN PABLO, SUITE 502
BAYAMON, PR 00961
Bayamón Municipio (787) 778-0632
GRUPO FISIATRICO DE BAYAMON PTR
Physical Medicine & Rehabilitation
66 CALLE SANTA CRUZ, INSTITUTO SAN PABLO SUITE 301
BAYAMON, PR 00961
Bayamón Municipio (787) 740-2270
JUDY FERNANDEZ-GALLARDO M.D.
Psychiatry & Neurology (Psychiatry)
66 CALLE SANTA CRUZ, SUITE 508 INSTITUTO SAN PABLO
BAYAMON, PR 00961
Bayamón Municipio (787) 269-0059
AB PAIN LLC
Physical Medicine & Rehabilitation (Pain Medicine)
66 CALLE SANTA CRUZ, SUITE 308 INSTITUTO SAN PABLO
BAYAMON, PR 00961
Bayamón Municipio (787) 425-0060

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 Gabriel Montalvo-castro's NPI number?

The NPI number for Gabriel Montalvo-castro is 1851704589. It was assigned to this individual provider in the NPPES registry on June 10, 2014.

Where is Gabriel Montalvo-castro located?

Gabriel Montalvo-castro practices at 66 Calle Santa Cruz Instituto San Pablo Suite 307, Bayamon, PR 00961. The listed phone number is (787) 798-8486.

What is Gabriel Montalvo-castro's specialty?

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

Is Gabriel Montalvo-castro enrolled in Medicare?

Yes. Gabriel Montalvo-castro is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gabriel Montalvo-castro's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gabriel Montalvo-castro reassigns Medicare benefits to Integrate Community Health System (Bayamon, PR). The 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 Gabriel Montalvo-castro'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 Gabriel Montalvo-castro was last updated on February 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.