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DR. ARMANDO LUIS NAZARIO GUIRAU M.D.
NPI 1962437814
Specialist in San Juan, PR

Active since July 11, 2006PECOS EnrolledAccepts Medicare Assignment
400 AVE FD ROOSEVELT, SUITE 406, SAN JUAN, PR 00918(787) 250-7676(787) 756-5210 Get Directions Write a Review

NPPES record last updated: February 29, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Armando Luis Nazario Guirau M.d. NPPES

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

DR. ARMANDO LUIS NAZARIO GUIRAU M.D. (NPI 1962437814) is an individual specialist in San Juan, Puerto Rico and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Puerto Rico School Of Medicine (1980).

NPPES Registry Identity

NPI1962437814
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. ARMANDO LUIS NAZARIO GUIRAUCredential: M.D.
Location Address400 AVE FD ROOSEVELT, SUITE 406San Juan, PR 00918-2103
Mailing Address400 Ave Fd Roosevelt, Suite 406San Juan, PR 00918-2103 · (787) 250-7676 · Fax (787) 756-5210
Phone(787) 250-7676
Fax(787) 756-5210
Sole ProprietorYes
Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 1980
Enumeration DateJuly 11, 2006
Last NPPES UpdateFebruary 29, 2012
✔ NPI 1962437814 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
400 AVE FD ROOSEVELT, San Juan, PR 00918
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Other Identifiers 2

Medicare ID-Type Unspecified26161PR
Medicare UPIND08797PR

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. Armando Luis Nazario Guirau M.d. 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.

PECOS PAC ID6406951946
PECOS Enrollment IDI20070412000062
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 Reassignments

2

Medicare enrollment records show Armando Nazario Guirau reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinica Las Americas Guaynabo, Inc
General Practice
1 AVE CASA LINDA
Bayamon, PR 00959
  • Reassigned Medicare billing, Puerto Rico enrollment
  • 75 clinicians in this Medicare group
NPI 1033508197 (787) 789-1996
Hato Rey Orthopedic Assoc
Specialist
400 F D ROOSEVELT AVE, SUITE 406
San Juan, PR 00918
  • Reassigned Medicare billing, Puerto Rico enrollment
  • 2 clinicians in this Medicare group
NPI 1841270659 (787) 250-7676

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

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
91 services53 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
34 services34 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
21 services13 patients

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.

PHILADELPHIA PARTNERS, PSC
Urology
400 AVE FD ROOSEVELT, SUITE 306
SAN JUAN, PR 00918
San Juan Municipio (787) 756-5200
TOME & UBINAS RADIO ONCOLOGY CENTER
Clinic/Center (Oncology, Radiation)
400 AVE FD ROOSEVELT, SUITE 109
SAN JUAN, PR 00918
San Juan Municipio (787) 764-5666
LUIS A ARTURI MD
Internal Medicine (Gastroenterology)
400 AVE FD ROOSEVELT
SAN JUAN, PR 00918
San Juan Municipio (787) 764-8787
IRMA MICHELLE LORENZI DMD
Dentist
400 AVE FD ROOSEVELT
SAN JUAN, PR 00918
San Juan Municipio (787) 250-5055
JOSE S. REYES TORRES
Colon & Rectal Surgery
400 AVE FD ROOSEVELT, STE 202
SAN JUAN, PR 00918
San Juan Municipio (787) 621-3700
LABORATORIO CLINICO C L A INC
Clinical Medical Laboratory
400 AVE FD ROOSEVELT, SUITE 201
SAN JUAN, PR 00918
San Juan Municipio (787) 744-0330
DR. RICARDO H BRAU M.D.
Neurological Surgery
400 AVE FD ROOSEVELT, SUITE 511
SAN JUAN, PR 00918
San Juan Municipio (787) 763-1310
ORLANDO CANIZARES ROSARIO M.D.
Surgery (Plastic and Reconstructive Surgery)
400 AVE FD ROOSEVELT, SUITE 412
SAN JUAN, PR 00918
San Juan Municipio (787) 949-5027

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 Armando Nazario Guirau's NPI number?

The NPI number for Armando Nazario Guirau is 1962437814. It was assigned to this individual provider in the NPPES registry on July 11, 2006.

Where is Armando Nazario Guirau located?

Armando Nazario Guirau practices at 400 Ave Fd Roosevelt Suite 406, San Juan, PR 00918. The listed phone number is (787) 250-7676.

What is Armando Nazario Guirau's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Armando Nazario Guirau enrolled in Medicare?

Yes. Armando Nazario Guirau 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 Armando Nazario Guirau's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Armando Nazario Guirau reassigns Medicare benefits to 2 organizations: Clinica Las Americas Guaynabo, Inc (Bayamon, PR) and Hato Rey Orthopedic Assoc (San Juan, 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 Armando Nazario Guirau'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 Armando Nazario Guirau was last updated on February 29, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.