2026 NPPES data Emergency Medicine Physician NPI 1851728380 MD
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LIZMARI CARRERAS-RIVERA, MD

Emergency Medicine Physician in CAROLINA, Puerto Rico. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
15
Medicare Part D claims · 13 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data reveals: LIZMARI CARRERAS-RIVERA, MD is a Emergency Medicine Physician ([object Object]) practicing in CAROLINA, Puerto Rico with a Medicare Part D prescribing footprint of 15 claims across 13 beneficiaries .

What stands out: LIZMARI CARRERAS-RIVERA, MD filed 15 Medicare Part D claims in 2023 across CAROLINA, Puerto Rico. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

LIZMARI CARRERAS-RIVERA, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

LIZMARI CARRERAS-RIVERA, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 09/30/2013

NPI 1851728380

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

15 96% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Puerto Rico

How Emergency Medicine Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Emergency Medicine Physician share within Puerto Rico

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within Puerto Rico

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Emergency Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

LIZMARI CARRERAS-RIVERA, MD is a Emergency Medicine Physician provider practicing in CAROLINA, Puerto Rico, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1851728380. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

LIZMARI CARRERAS-RIVERA, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at CARR 3 KM. 8.3 AVE. 65 INFANTERIA, CAROLINA, PR, 00985, with a listed phone of (787) 757-1800. NPI 1851728380 was issued on 09/30/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARRERAS-RIVERA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 15 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $252 in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

CARR 3 KM. 8.3 AVE. 65 INFANTERIA
CAROLINA, PR 00985

Provider Details

NPI 1851728380
Specialty Emergency Medicine Physician
Credentials MD
Gender Female
NPI Issued 09/30/2013

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

15
Total Claims
$252
Total Drug Cost
13
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15
Total Day Supply
93
Brand Drug Cost
$0
Generic Drug Cost
$252
Antibiotic Claims
13

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
2.36

Emergency Medicine Physician Overview

How LIZMARI CARRERAS-RIVERA, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

LIZMARI CARRERAS-RIVERA, MD's 15 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as CARRERAS-RIVERA.

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LIZMARI CARRERAS-RIVERA, MD's specialty?
LIZMARI CARRERAS-RIVERA, MD specializes in Emergency Medicine Physician and practices in CAROLINA, Puerto Rico. Credentials: MD.
How much does LIZMARI CARRERAS-RIVERA, MD prescribe under Medicare Part D?
In 2023, LIZMARI CARRERAS-RIVERA, MD wrote 15 Medicare Part D claims totaling $252 in drug costs for 13 beneficiaries.
Where is LIZMARI CARRERAS-RIVERA, MD located?
LIZMARI CARRERAS-RIVERA, MD is located at CARR 3 KM. 8.3 AVE. 65 INFANTERIA, CAROLINA, PR, 00985. Phone: (787) 757-1800.
What is LIZMARI CARRERAS-RIVERA, MD's NPI number?
LIZMARI CARRERAS-RIVERA, MD's National Provider Identifier (NPI) is 1851728380, issued on 09/30/2013.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
Does LIZMARI CARRERAS-RIVERA, MD accept Medicare?
LIZMARI CARRERAS-RIVERA, MD appears in CMS Medicare data with 15 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LIZMARI CARRERAS-RIVERA, MD's credentials?
LIZMARI CARRERAS-RIVERA, MD's NPI is 1851728380 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology