1. Home
  2. Directory
  3. NPI Profile

DUNA MEDICAL SERVICES
NPI 1083719678
Internal Medicine in Humacao, PR

Active since September 14, 2006
TURGUESA STREET #12, HUMACAO, PR 00791(787) 285-4240(787) 285-4240 Get Directions Write a Review

NPPES record last updated: June 29, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Duna Medical Services NPPES

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

DUNA MEDICAL SERVICES (NPI 1083719678) is a healthcare organization registered as an internal medicine in Humacao, Puerto Rico and active in the NPI registry since September 2006. The organization lists Nancy Santini, President, as its authorized official.

NPPES Registry Identity

NPI1083719678
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDUNA MEDICAL SERVICES
Location AddressTURGUESA STREET #12Humacao, PR 00791
Mailing AddressPo Box 977Punta Santiago, PR 00741-0977 · (787) 285-4240 · Fax (787) 285-4240
Phone(787) 285-4240
Fax(787) 285-4240
Organization SubpartNo
Authorized OfficialNancy SantiniPresident · (787) 285-4240
Enumeration DateSeptember 14, 2006
Last NPPES UpdateJune 29, 2011
✔ NPI 1083719678 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in PR · 12273✔ Licensed in PR · 9854
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.
TURGUESA STREET #12, Humacao, PR 00791
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Duna Medical Services is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StatePuerto RicoEnrollment IDO20120224000254Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Duna Medical Services, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Nancy Santini Valiente, MD
Internal Medicine
NPI 1225066087
12 CALLE TURQUESA
Humacao, PR 00791
(787) 285-4240
✔ PECOS✔ Accepts Medicare3,620 mi
Dubal Rolon Alvarado, MD
Internal Medicine
NPI 1942246905
TURQUESA STREET #12
Humacao, PR 00791
(787) 285-4240
✔ PECOS✔ Accepts Medicare3,620 mi

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

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 Duna Medical Services's NPI number?

The NPI number for Duna Medical Services is 1083719678. It was assigned to this organization in the NPPES registry on September 14, 2006.

Where is Duna Medical Services located?

Duna Medical Services is located at Turguesa Street #12, Humacao, PR 00791. The listed phone number is (787) 285-4240.

What is Duna Medical Services's specialty?

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

Is Duna Medical Services enrolled in Medicare?

Yes. Duna Medical Services is registered in the Medicare PECOS enrollment system.

When is Duna Medical Services's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Puerto Rico, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Duna Medical Services?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Duna Medical Services. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Duna Medical Services was last updated on June 29, 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.