2026 NPPES data Nuclear Medicine Physician NPI 1982664652 M.D.
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LOURDES GARCIA ALONSO, M.D.

Nuclear 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
27
Medicare Part D claims · 15 beneficiaries · Nuclear Medicine Physician avg: 881
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$47.1
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

LOURDES GARCIA ALONSO, M.D. filed 27 Medicare Part D claims in 2023 as a Nuclear Medicine Physician in SAN JUAN, Puerto Rico, prescribing 52% generic.

27
Part D claims, 2023
52%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

LOURDES GARCIA ALONSO, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

27 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

LOURDES GARCIA ALONSO, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about LOURDES GARCIA ALONSO, M.D.?

Quality data not reported

NPI registry status

Active

Issued 03/25/2006

NPI 1982664652

Primary specialty

Nuclear Medicine Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

27 97% vs specialty avg

2023 prescription claims

Specialty avg: 881

Specialty distribution in Puerto Rico

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

Puerto Rico providers

Nuclear Medicine Physician share within Puerto Rico

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Nuclear 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).

LOURDES GARCIA ALONSO, M.D. is a Nuclear Medicine Physician provider practicing in SAN JUAN, Puerto Rico, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1982664652. 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.

LOURDES GARCIA ALONSO, M.D. appears in the CMS NPPES registry as a Nuclear Medicine Physician provider holding M.D. credentials at 1462 PROFESOR AUGUSTO RODRIGUEZ ST, SAN JUAN, PR, 00909, with a listed phone of (787) 641-1616. NPI 1982664652 was issued on 03/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GARCIA ALONSO 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 27 prescription claims written by this provider, covering 15 Medicare beneficiaries and totaling roughly $5K in drug spend, split 48% brand-name and 52% generic by claim count. 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.

Nuclear Medicine Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 881 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

1462 PROFESOR AUGUSTO RODRIGUEZ ST
SAN JUAN, PR 00909

Provider Details

NPI 1982664652
Specialty Nuclear Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 03/25/2006

Hospital and facility affiliations

Facilities where LOURDES GARCIA ALONSO, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

MORGAR CSP
CAROLINA, PR

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for LOURDES GARCIA ALONSO, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$47

Largest payer

Boston Scientific Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

LOURDES GARCIA ALONSO, M.D. — brand share 48.0%
Specialty average (est.)

48% brand-name claims vs 52% generic, on 27 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

27
Total Claims
$5K
Total Drug Cost
15
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
33
Total Day Supply
665
Brand vs Generic
48% brand / 52% generic
Brand Drug Cost
$5K
Generic Drug Cost
$209

Patient Demographics

Average Patient Age
68.5 years
Avg HCC Risk Score
1.31
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Synthroid
Levothyroxine Sodium
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Nuclear Medicine Physician Overview

How LOURDES GARCIA ALONSO, M.D. fits within the Nuclear Medicine Physician landscape nationally.

913
Nuclear Medicine Physician Providers in US
48
States with Nuclear Medicine Physician
881
Avg Claims per Provider

LOURDES GARCIA ALONSO, M.D.'s 27 claims are below the specialty average of 881.

Nearby Nuclear 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 GARCIA ALONSO.

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

Frequently Asked Questions

What is LOURDES GARCIA ALONSO, M.D.'s specialty?
LOURDES GARCIA ALONSO, M.D. specializes in Nuclear Medicine Physician and practices in SAN JUAN, Puerto Rico. Credentials: M.D..
How much does LOURDES GARCIA ALONSO, M.D. prescribe under Medicare Part D?
In 2023, LOURDES GARCIA ALONSO, M.D. wrote 27 Medicare Part D claims totaling $5K in drug costs for 15 beneficiaries.
Where is LOURDES GARCIA ALONSO, M.D. located?
LOURDES GARCIA ALONSO, M.D. is located at 1462 PROFESOR AUGUSTO RODRIGUEZ ST, SAN JUAN, PR, 00909. Phone: (787) 641-1616.
What is LOURDES GARCIA ALONSO, M.D.'s NPI number?
LOURDES GARCIA ALONSO, M.D.'s National Provider Identifier (NPI) is 1982664652, issued on 03/25/2006.
Does LOURDES GARCIA ALONSO, M.D. prescribe more brand-name or generic drugs?
LOURDES GARCIA ALONSO, M.D.'s prescribing is 48% brand-name and 52% generic drugs by claim count, with $5K in brand drug costs.
How many Nuclear Medicine Physician providers are there in the US?
There are 913 Nuclear Medicine Physician providers across 48 states in the US. The average Nuclear Medicine Physician provider writes 881 Medicare Part D claims per year.
What drugs does LOURDES GARCIA ALONSO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LOURDES GARCIA ALONSO, M.D.'s most frequently prescribed drugs include Synthroid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LOURDES GARCIA ALONSO, M.D. accept Medicare?
LOURDES GARCIA ALONSO, M.D. appears in CMS Medicare data with 27 Part D claims and 15 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LOURDES GARCIA ALONSO, M.D.'s credentials?
LOURDES GARCIA ALONSO, M.D.'s NPI is 1982664652 with credentials M.D.. 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