DR. MARTIN L RUIZ MD
NPI 1821542150
General Practice in San Juan, PR
About Dr. Martin L Ruiz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARTIN L RUIZ MD (NPI 1821542150) is an individual general practice provider in San Juan, Puerto Rico, licensed in Puerto Rico (019421) and active in the NPI registry since August 2016. He is enrolled in Medicare PECOS, is affiliated with Metropolitan Hospital, and maintains a secondary practice location in San Juan.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Martin L Ruiz Md 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.
Medicare Billing Reassignments
4Medicare enrollment records show Martin Ruiz reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Caguas, PR 00725
- Reassigned Medicare billing, Puerto Rico enrollment
- 428 clinicians in this Medicare group
Arecibo, PR 00612
- Reassigned Medicare billing, Puerto Rico enrollment
- 77 clinicians in this Medicare group
Cabo Rojo, PR 00623
- Reassigned Medicare billing, Puerto Rico enrollment
- 37 clinicians in this Medicare group
Caguas, PR 00725
- Reassigned Medicare billing, Puerto Rico enrollment
- 35 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Metropolitan Hospital
Acute Care Hospitals · San Juan, PRFrequently 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 Martin Ruiz's NPI number?
The NPI number for Martin Ruiz is 1821542150. It was assigned to this individual provider in the NPPES registry on August 3, 2016.
Where is Martin Ruiz located?
Martin Ruiz practices at 269 Calle Jilguero, San Juan, PR 00926. The listed phone number is (787) 508-0899.
What is Martin Ruiz's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Martin Ruiz enrolled in Medicare?
Yes. Martin Ruiz 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.
Which organizations bill Medicare for Martin Ruiz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Ruiz reassigns Medicare benefits to 4 organizations: Centro Medico Del Turabo Inc (Caguas, PR), Emergency Physician Providers, LLC (Arecibo, PR), Mm Health Services LLC (Cabo Rojo, PR) and Zenith Health Group LLC (Caguas, PR). Each 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 Martin Ruiz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Martin Ruiz affiliated with any hospitals?
According to CMS data, Martin Ruiz is affiliated with Metropolitan Hospital.
When was this NPI record last updated?
The NPPES record for Martin Ruiz was last updated on November 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Martin L Ruiz, MD · NPI 1821542150
General Practice physician in San Juan, Puerto Rico. Individual provider, active in the CMS NPPES registry since August 3, 2016.
## Identity
- **NPI:** 1821542150 (Entity type: Individual)
- **Enumerated:** August 3, 2016
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** 019421 (Puerto Rico)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 269 CALLE JILGUERO, San Juan, PR 00926-7109
- **Phone:** (787) 508-0899
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Centro Medico Del Turabo Inc (NPI 1710107883, Caguas, PR); Emergency Physician Providers, LLC (NPI 1245775089, Arecibo, PR); Mm Health Services LLC (NPI 1538969753, Cabo Rojo, PR); Zenith Health Group LLC (NPI 1124821152, Caguas, PR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** November 3, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1821542150) · Data from the CMS NPPES public registry.