2026 NPPES data Pediatric Critical Care Medicine Physician NPI 1518941970 MD
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ALICIA FERNANDEZ-SEIN, MD

Pediatric Critical Care Medicine Physician in SAN JUAN, 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
59
Medicare Part D claims · Pediatric Critical Care Medicine Physician avg: 91
What the federal data reveals: ALICIA FERNANDEZ-SEIN, MD is a Pediatric Critical Care Medicine Physician ([object Object]) practicing in SAN JUAN, Puerto Rico with a Medicare Part D prescribing footprint of 59 claims .

What stands out: ALICIA FERNANDEZ-SEIN, MD filed 59 Medicare Part D claims in 2023 across SAN JUAN, Puerto Rico. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ALICIA FERNANDEZ-SEIN, 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).

ALICIA FERNANDEZ-SEIN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/30/2005

NPI 1518941970

Primary specialty

Pediatric Critical Care Medicine Physician

Niche

2,247 US NPIs in this specialty

Medicare Part D claims

59 35% vs specialty avg

2023 prescription claims

Specialty avg: 91

Specialty distribution in Puerto Rico

How Pediatric Critical Care Medicine Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Pediatric Critical Care Medicine Physician share within Puerto Rico

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

Specialty board-certification context

Estimated specialty board-certified rate — Pediatric Critical Care Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Pediatric Critical Care Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatric Critical Care 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).

ALICIA FERNANDEZ-SEIN, MD is a Pediatric Critical Care Medicine Physician provider practicing in SAN JUAN, Puerto Rico, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1518941970. 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.

ALICIA FERNANDEZ-SEIN, MD appears in the CMS NPPES registry as a Pediatric Critical Care Medicine Physician provider holding MD credentials at 252 CALLE SAN JORGE, SAN JUAN, PR, 00912, with a listed phone of (787) 726-0210. NPI 1518941970 was issued on 11/30/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FERNANDEZ-SEIN 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 59 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $1K 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.

Pediatric Critical Care Medicine Physician is a narrow specialty nationwide, with 2,247 enrolled providers across 52 states and an average of 91 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

252 CALLE SAN JORGE
SAN JUAN, PR 00912

Provider Details

NPI 1518941970
Specialty Pediatric Critical Care Medicine Physician
Credentials MD
Gender Female
NPI Issued 11/30/2005

Medicare Part D Prescribing Data

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

59
Total Claims
$1K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
117
Total Day Supply
3,321
Generic Drug Cost
$521

Patient Demographics

Average Patient Age
78.4 years
Avg HCC Risk Score
1.60

Pediatric Critical Care Medicine Physician Overview

How ALICIA FERNANDEZ-SEIN, MD fits within the Pediatric Critical Care Medicine Physician landscape nationally.

2,247
Pediatric Critical Care Medicine Physician Providers in US
52
States with Pediatric Critical Care Medicine Physician
91
Avg Claims per Provider

ALICIA FERNANDEZ-SEIN, MD's 59 claims are below the specialty average of 91.

Nearby Pediatric Critical Care 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 FERNANDEZ-SEIN.

Compare Pediatric Critical Care Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALICIA FERNANDEZ-SEIN, MD's specialty?
ALICIA FERNANDEZ-SEIN, MD specializes in Pediatric Critical Care Medicine Physician and practices in SAN JUAN, Puerto Rico. Credentials: MD.
How much does ALICIA FERNANDEZ-SEIN, MD prescribe under Medicare Part D?
In 2023, ALICIA FERNANDEZ-SEIN, MD wrote 59 Medicare Part D claims totaling $1K in drug costs for N/A beneficiaries.
Where is ALICIA FERNANDEZ-SEIN, MD located?
ALICIA FERNANDEZ-SEIN, MD is located at 252 CALLE SAN JORGE, SAN JUAN, PR, 00912. Phone: (787) 726-0210.
What is ALICIA FERNANDEZ-SEIN, MD's NPI number?
ALICIA FERNANDEZ-SEIN, MD's National Provider Identifier (NPI) is 1518941970, issued on 11/30/2005.
How many Pediatric Critical Care Medicine Physician providers are there in the US?
There are 2,247 Pediatric Critical Care Medicine Physician providers across 52 states in the US. The average Pediatric Critical Care Medicine Physician provider writes 91 Medicare Part D claims per year.
Does ALICIA FERNANDEZ-SEIN, MD accept Medicare?
ALICIA FERNANDEZ-SEIN, MD appears in CMS Medicare data with 59 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALICIA FERNANDEZ-SEIN, MD's credentials?
ALICIA FERNANDEZ-SEIN, MD's NPI is 1518941970 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