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MJOM ENT LLC
NPI 1164379111
Otolaryngology in San Juan, PR

Active since March 10, 2026
1789 CARR 21 STE 202, SAN JUAN, PR 00921(787) 679-6513 Get Directions Write a Review

NPPES record last updated: March 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mjom Ent Llc NPPES

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

MJOM ENT LLC (NPI 1164379111) is a healthcare organization registered as an otolaryngology in San Juan, Puerto Rico and active in the NPI registry since March 2026. The organization lists Mariana J Ortiz Martinez, President, as its authorized official.

NPPES Registry Identity

NPI1164379111
Entity TypeOrganization
Primary Taxonomy207Y00000X
Legal Business NameMJOM ENT LLC
Location Address1789 CARR 21 STE 202San Juan, PR 00921-3335
Mailing Address1789 Carr 21 Ste 202San Juan, PR 00921-3335 · (787) 679-6513
Phone(787) 679-6513
Organization SubpartNo
Authorized OfficialMariana J Ortiz MartinezPresident · (787) 679-6513
Enumeration DateMarch 10, 2026
NPPES CertifiedMarch 10, 2026
✔ NPI 1164379111 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mjom Ent Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Mjom Ent LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Mariana Ortiz Martinez, M. D.
Otolaryngology
NPI 1710326723
1789 CARRETERA 21 TORRE HOSPITAL METROPOLITANO SUITE 309
San Juan, PR 00921
(787) 706-1315
✔ PECOS✔ Accepts Medicare

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 Mjom Ent LLC's NPI number?

The NPI number for Mjom Ent LLC is 1164379111. It was assigned to this organization in the NPPES registry on March 10, 2026.

Where is Mjom Ent LLC located?

Mjom Ent LLC is located at 1789 Carr 21 Ste 202, San Juan, PR 00921. The listed phone number is (787) 679-6513.

What is Mjom Ent LLC's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Mjom Ent LLC enrolled in Medicare?

Yes. Mjom Ent LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mjom Ent LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Otolaryngology) reassigns their Medicare billing to Mjom Ent LLC. 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 Mjom Ent LLC was last updated on March 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.