MARIA DEL CARMEN MARRERO MENDEZ M.D.
NPI 1659758324
Internal Medicine - Endocrinology, Diabetes & Metabolism in Arecibo, PR

Q: What is Maria Marrero Mendez's NPI number?

The NPI number for Maria Marrero Mendez is 1659758324. It was assigned to this individual provider in the NPPES registry on May 1, 2015.

Q: What is Maria Marrero Mendez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Active since May 01, 2015PECOS EnrolledAccepts Medicare Assignment

11 CALLE ANA LENS DE SUSONI, ARECIBO, PR 00612(787) 568-3573 Get Directions Write a Review

NPPES record last updated: December 24, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 24, 2022, Mar 19, 2021, Jul 9, 2020 and 2 more (5 updates tracked since 2017).

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About Maria Del Carmen Marrero Mendez M.d. NPPES

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

MARIA DEL CARMEN MARRERO MENDEZ M.D. (NPI 1659758324) is an individual endocrinology, diabetes & metabolism provider in Arecibo, Puerto Rico, licensed in Puerto Rico (19896) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS and is a graduate of University Of Puerto Rico School Of Medicine (2015).

NPPES Registry Identity

NPI1659758324

Entity TypeIndividualFemale

Primary Taxonomy207RE0101X

Provider Legal NameMARIA DEL CARMEN MARRERO MENDEZCredential: M.D.

Location Address11 CALLE ANA LENS DE SUSONIArecibo, PR 00612

Mailing AddressPo Box 141591Arecibo, PR 00614-1591 · (787) 568-3573

Phone(787) 568-3573

Sole ProprietorYes

Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 2015

Enumeration DateMay 1, 2015

Last NPPES UpdateDecember 24, 20225 updates tracked since enumeration

NPPES CertifiedDecember 24, 2022

✔ NPI 1659758324 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in PR · 19896

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

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

Maria Del Carmen Marrero Mendez 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 ID5698103570

PECOS Enrollment IDI20200309001387

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 Maria Marrero Mendez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Marrero Endocrinology And Metabolism LLC

Endocrinology, Diabetes & Metabolism

11 CALLE ANA LENS DE SUSONI
Arecibo, PR 00612

Reassigned Medicare billing, Puerto Rico enrollment

NPI 1235724378 (787) 568-3573

Pro-Health Clinical Services LLC

Endocrinology, Diabetes & Metabolism

CALLE MANUEL ROSSY ESQUINA ISABEL SEGUNDA, BAYAMON HEALTH CENTER
Bayamon, PR 00961

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

NPI 1881003382 (787) 451-1363

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

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 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.

35 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00612 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

$130.65 typical visit price

range $56.86 – $172.44

Typical copayment $32.66 (range $14.21 – $43.11)

Most-billed visit code 99204

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.

Other Providers at the Same Location NPPES

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

MARRERO ENDOCRINOLOGY AND METABOLISM LLC

Internal Medicine (Endocrinology, Diabetes & Metabolism)

11 CALLE ANA LENS DE SUSONI
ARECIBO, PR 00612

Arecibo Municipio (787) 568-3573

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 Maria Marrero Mendez's NPI number?

The NPI number for Maria Marrero Mendez is 1659758324. It was assigned to this individual provider in the NPPES registry on May 1, 2015.

Where is Maria Marrero Mendez located?

Maria Marrero Mendez practices at 11 Calle Ana Lens De Susoni, Arecibo, PR 00612. The listed phone number is (787) 568-3573.

What is Maria Marrero Mendez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Maria Marrero Mendez enrolled in Medicare?

Yes. Maria Marrero Mendez 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 Maria Marrero Mendez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Marrero Mendez reassigns Medicare benefits to 2 organizations: Marrero Endocrinology And Metabolism LLC (Arecibo, PR) and Pro-Health Clinical Services LLC (Bayamon, 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 Maria Marrero Mendez'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 Maria Marrero Mendez was last updated on December 24, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.