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CARLOS C MARRERO SR. MD
NPI 1083774228
Family Medicine - Geriatric Medicine in San Juan, PR

Active since December 11, 2006PECOS EnrolledAccepts Medicare Assignment
CESAR GONZALEZ #463 URB ROOSEVELT, SAN JUAN, PR 00918(787) 274-0277(787) 765-2823 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Carlos C Marrero Sr. Md NPPES

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

CARLOS C MARRERO SR. MD (NPI 1083774228) is an individual geriatric medicine provider in San Juan, Puerto Rico, licensed in Puerto Rico (8381) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1982).

NPPES Registry Identity

NPI1083774228
Entity TypeIndividualMale
Primary Taxonomy207QG0300X
Provider Legal NameCARLOS C MARRERO SR.Credential: MD
Location AddressCESAR GONZALEZ #463 URB ROOSEVELTSan Juan, PR 00918
Mailing AddressPo Box 366268San Juan, PR 00936-6268 · (787) 274-0277 · Fax (787) 765-2823
Phone(787) 274-0277
Fax(787) 765-2823
Sole ProprietorNo
Medical School CMSOtherGraduated 1982
Enumeration DateDecember 11, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1083774228 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QG0300X
License✔ Licensed in PR · 8381
Definition
A family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes, and the hospital.
CESAR GONZALEZ #463 URB ROOSEVELT, San Juan, PR 00918
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Other Identifiers 8

Other066733Cruz Azul
Other58376947Cigna
Medicare UPINE66290
Medicare ID-Type Unspecified29789
Other1808Palic-pe
Other9180014Humana
Other28381Mcs
Other27803MATs

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Carlos C Marrero Sr. 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 ID5092887422
PECOS Enrollment IDI20080630000698
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.

Areas of Expertise CMS Part B claims 4

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
280 services59 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
59 services25 patients
Diagnostic exam of voice box using an endoscope with mirror 31505
This procedure involves using a special tool called an endoscope, fitted with a mirror, to examine your voice box. It helps identify any abnormalities or issues that may affect your voice or breathing. It's a safe, straightforward process.
22 services15 patients
Test to measure expiratory airflow and volume 94010
This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
14 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00918 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
$100.24 typical visit price
range $18.24 – $140.44
Typical copayment $25.06 (range $4.56 – $35.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Marrero's NPI number?

The NPI number for Carlos Marrero is 1083774228. It was assigned to this individual provider in the NPPES registry on December 11, 2006.

Where is Carlos Marrero located?

Carlos Marrero practices at Cesar Gonzalez #463 Urb Roosevelt, San Juan, PR 00918. The listed phone number is (787) 274-0277.

What is Carlos Marrero's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.

Is Carlos Marrero enrolled in Medicare?

Yes. Carlos Marrero 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.

When was this NPI record last updated?

The NPPES record for Carlos Marrero was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.