CARLOS JOSE NASSAR MD
NPI 1922002559
Radiology - Diagnostic Radiology in Humacao, PR

Q: What is Carlos Nassar's NPI number?

The NPI number for Carlos Nassar is 1922002559. It was assigned to this individual provider in the NPPES registry on June 10, 2005.

Q: What is Carlos Nassar's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Carlos Nassar was last updated on July 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since June 10, 2005PECOS EnrolledAccepts Medicare Assignment

63 CRUZ ORTIZ STELLA AVE., HUMACAO, PR 00791(787) 852-0920(787) 852-6685 Get Directions Write a Review

NPPES record last updated: July 28, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Carlos Jose Nassar Md NPPES

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

CARLOS JOSE NASSAR MD (NPI 1922002559) is an individual diagnostic radiology provider in Humacao, Puerto Rico, licensed in Puerto Rico (12672) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Ryder Memorial Hospital Inc, and is a graduate of University Of Puerto Rico School Of Medicine (1994).

NPPES Registry Identity

NPI1922002559

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameCARLOS JOSE NASSARCredential: MD

Location Address63 CRUZ ORTIZ STELLA AVE.Humacao, PR 00791

Mailing AddressPo Box 9132Humacao, PR 00792-9132 · (787) 852-0920 · Fax (787) 852-6685

Phone(787) 852-0920

Fax(787) 852-6685

Sole ProprietorNo

Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 1994

Enumeration DateJune 10, 2005

Last NPPES UpdateJuly 28, 2022

NPPES CertifiedJuly 28, 2022

✔ NPI 1922002559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in PR · 12672

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Also ListedRadiology · Body ImagingTaxonomy 2085B0100X · License 12672 (PR)

Also ListedRadiology · Diagnostic UltrasoundTaxonomy 2085U0001X · License 12672 (PR)

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

Carlos Jose Nassar 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.

PECOS PAC ID5193810331

PECOS Enrollment IDI20071002000781

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

Medicare enrollment records show Carlos Nassar reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Centro De Diagnostico Y Tratamiento De San Sebastian Inc

Diagnostic Radiology

3 JOSE MENDEZ CARDONA AVE
San Sebastian, PR 00685

Reassigned Medicare billing, Puerto Rico enrollment
20 clinicians in this Medicare group

NPI 1063694453 (787) 896-1850

Centro Radiologico Shalom Inc

Portable X-ray and/or Other Portable Diagnostic Imaging Supplier

CARR 2 KM101.6 BO TERRANVOVA, MARGINAL DEL PARQUE
Quebradillas, PR 00678

Reassigned Medicare billing, Puerto Rico enrollment
9 clinicians in this Medicare group

NPI 1548570211 (787) 501-5329

Dr Jose A Nassar & Asociados

Radiology

63 CRUZ ORTIZ STELLA AVE.
Humacao, PR 00791

Reassigned Medicare billing, Puerto Rico enrollment
12 clinicians in this Medicare group

NPI 1124022744 (787) 852-0920

Hospital Menonita De Cayey

Specialist

RINCO INTERIOR 14ST
Cayey, PR 00737

Reassigned Medicare billing, Puerto Rico enrollment
162 clinicians in this Medicare group

NPI 1255461893 (787) 535-1001

Hospital Menonita Humacao Inc

General Acute Care Hospital

NUMERO 300 AVENIDA FONT MARTELLO
Humacao, PR 00792

Reassigned Medicare billing, Puerto Rico enrollment
12 clinicians in this Medicare group

NPI 1578196820 (787) 434-1700

Insight Management Group Inc

Radiology

PR RD 2, KM. 123.8, BO. CAIMITAL ALTO
Aguadilla, PR 00625

Reassigned Medicare billing, Puerto Rico enrollment
31 clinicians in this Medicare group

NPI 1891722989 (787) 256-3222

Mennonite General Hospital Inc

Specialist

CALLE JOSE C VAZQUEZ, BO CAONILLAS
Aibonito, PR 00705

Reassigned Medicare billing, Puerto Rico enrollment
205 clinicians in this Medicare group

NPI 1043347768 (787) 535-1001

Policlinica Del Atlantico, Corp.

Radiology

CARR #2 K.M 111.3, BO. MORA
Isabela, PR 00662

Reassigned Medicare billing, Puerto Rico enrollment
3 clinicians in this Medicare group

NPI 1497955108 (787) 830-7737

Policlinica Familiar Shalom Inc

Public Health & General Preventive Medicine

25 CALLE MENDEZ VIGO W
Mayaguez, PR 00680

Reassigned Medicare billing, Puerto Rico enrollment
23 clinicians in this Medicare group

NPI 1619580321 (787) 896-1850

Premium Health Group Clinic

Health Service

LAGUNA GARDENS SHOPPING CENTER, SUITE 101A
Carolina, PR 00979

Reassigned Medicare billing, Puerto Rico enrollment
6 clinicians in this Medicare group

NPI 1306071451 (787) 253-1101

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 12

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.

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

105 services74 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

39 services38 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

36 services35 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

22 services20 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

21 services19 patients

Complete ultrasound scan of 1 breast 76641

A complete ultrasound scan of one breast is a non-invasive imaging test that uses sound waves to create detailed images of the inside of your breast. It helps in detecting any abnormalities or changes, ensuring your breast health.

19 services19 patients

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

16 services16 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

15 services15 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

14 services13 patients

X-ray of chest, 2 views 71046

13 services13 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

13 services13 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

13 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ryder Memorial Hospital Inc

Acute Care Hospitals · Humacao, PR

OwnershipVoluntary non-profit - Private

CMS Certification Number400007

Location355 Ave Font MarteloHumacao, PR 00791 · Humacao County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00791 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

$70.88 typical visit price

range $18.24 – $140.44

Typical copayment $17.72 (range $4.56 – $35.11)

Most-billed visit code 99213

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 3

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

DR JOSE A NASSAR & ASOCIADOS

Clinic/Center (Radiology)

63 CRUZ ORTIZ STELLA AVE.
HUMACAO, PR 00791

Humacao Municipio (787) 852-0920

JOSE AGUSTIN NASSAR MD

Radiology (Diagnostic Radiology)

63 CRUZ ORTIZ STELLA AVE.
HUMACAO, PR 00791

Humacao Municipio (787) 852-0920

JOSE RAUL NASSAR MD

Radiology (Diagnostic Radiology)

63 CRUZ ORTIZ STELLA AVE.
HUMACAO, PR 00791

Humacao Municipio (787) 852-0920

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 Carlos Nassar's NPI number?

The NPI number for Carlos Nassar is 1922002559. It was assigned to this individual provider in the NPPES registry on June 10, 2005.

Where is Carlos Nassar located?

Carlos Nassar practices at 63 Cruz Ortiz Stella Ave., Humacao, PR 00791. The listed phone number is (787) 852-0920.

What is Carlos Nassar's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Carlos Nassar enrolled in Medicare?

Yes. Carlos Nassar 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 Carlos Nassar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Nassar reassigns Medicare benefits to 11 organizations: Centro De Diagnostico Y Tratamiento De San Sebastian Inc (San Sebastian, PR), Centro Radiologico Shalom Inc (Quebradillas, PR), Dr Jose A Nassar & Asociados (Humacao, PR), Hospital Menonita De Cayey (Cayey, PR), Hospital Menonita Humacao Inc (Humacao, PR) and 6 more organizations, listed in the Medicare section above. 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 Carlos Nassar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Carlos Nassar affiliated with any hospitals?

According to CMS data, Carlos Nassar is affiliated with Ryder Memorial Hospital Inc.

When was this NPI record last updated?

The NPPES record for Carlos Nassar was last updated on July 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.