DR. MELISSA SANTIAGO GARRATON M.D.
NPI 1336436658
Emergency Medicine in San Juan, PR

Active since July 07, 2011PECOS Enrolled
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO MONACILLOS, SAN JUAN, PR 00935(787) 754-0101 Get Directions Write a Review

NPPES record last updated: July 7, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Melissa Santiago Garraton M.d. NPPES

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

DR. MELISSA SANTIAGO GARRATON M.D. (NPI 1336436658) is an individual emergency medicine provider in San Juan, Puerto Rico, licensed in Puerto Rico (0000000) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336436658
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. MELISSA SANTIAGO GARRATONCredential: M.D.
Location AddressUNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO MONACILLOSSan Juan, PR 00935-0001
Mailing AddressPo Box 2116, Hospital Universitario De AdultosSan Juan, PR 00922-2116 · (787) 754-0101
Sole ProprietorYes
Enumeration DateJuly 7, 2011
✔ NPI 1336436658 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in PR · 0000000
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, San Juan, PR 00935

Other Names 1

Other Name (5)Dr. Melissa S. Garraton M.d.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Melissa Santiago Garraton 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 Melissa Santiago Garraton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Multi-Specialty
HIMA SAN PABLO CAGUAS, URB MARIOLGA #100 AVE LUIS MUNOZ MARIN
Caguas, PR 00725
  • Reassigned Medicare billing, Puerto Rico enrollment
  • 428 clinicians in this Medicare group

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 00935 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
$88.07 typical visit price
range $56.86 – $172.44
Typical copayment $22.01 (range $14.21 – $43.11)
Most-billed visit code 99203
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 14

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

Internal Medicine (Endocrinology, Diabetes & Metabolism)
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO. MONACILLOS
SAN JUAN, PR 00935
Surgery
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO. MONACILLOS
SAN JUAN, PR 00935
Radiology (Diagnostic Radiology)
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO. MONACILLOS
SAN JUAN, PR 00935
Internal Medicine (Cardiovascular Disease)
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO MONACILLOS
SAN JUAN, PR 00935
Internal Medicine (Infectious Disease)
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO MONACILLOS
SAN JUAN, PR 00935
Internal Medicine
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO MONACILLOS
SAN JUAN, PR 00935
Internal Medicine
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER
SAN JUAN, PR 00935
Surgery
UNIVERSITY DISTRICT HOSPITAL PUERTO RICO MEDICAL CENTER, BO MONACILLOS
SAN JUAN, PR 00935

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 Melissa Santiago Garraton's NPI number?

The NPI number for Melissa Santiago Garraton is 1336436658. It was assigned to this individual provider in the NPPES registry on July 7, 2011. The provider is also known as Dr. Melissa S. Garraton M.D..

Where is Melissa Santiago Garraton located?

Melissa Santiago Garraton practices at University District Hospital Puerto Rico Medical Center Bo Monacillos, San Juan, PR 00935. The listed phone number is (787) 754-0101.

What is Melissa Santiago Garraton's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Melissa Santiago Garraton enrolled in Medicare?

Yes. Melissa Santiago Garraton is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Melissa Santiago Garraton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Santiago Garraton reassigns Medicare benefits to Centro Medico Del Turabo Inc (Caguas, 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 Melissa Santiago Garraton'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 Melissa Santiago Garraton was last updated on July 7, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.