2026 NPPES data Otolaryngology Physician NPI 1326049156 M.D.
Verify on CMS →

GUSTAVO MELERO GIGANTE, M.D.

Otolaryngology 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
1K
Medicare Part D claims · 337 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$258.22
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GUSTAVO MELERO GIGANTE, M.D. is a Otolaryngology Physician ([object Object]) practicing in SAN JUAN, Puerto Rico with a Medicare Part D prescribing footprint of 1K claims across 337 beneficiaries — 2% brand-name prescribing . Industry payments of $258.22 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GUSTAVO MELERO GIGANTE, M.D. filed 1,152 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)

GUSTAVO MELERO GIGANTE, M.D. 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).

GUSTAVO MELERO GIGANTE, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/02/2005

NPI 1326049156

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

1,152 126% vs specialty avg

2023 prescription claims

Specialty avg: 509

Specialty distribution in Puerto Rico

How Otolaryngology Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Otolaryngology Physician share within Puerto Rico

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

Specialty board-certification context

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

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

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

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

GUSTAVO MELERO GIGANTE, M.D. is a Otolaryngology Physician provider practicing in SAN JUAN, Puerto Rico, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1326049156. 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.

GUSTAVO MELERO GIGANTE, M.D. appears in the CMS NPPES registry as a Otolaryngology Physician provider holding M.D. credentials at 1789 CARR 21, SAN JUAN, PR, 00921, with a listed phone of (787) 706-1315. NPI 1326049156 was issued on 08/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MELERO GIGANTE 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 1,152 prescription claims written by this provider, covering 337 Medicare beneficiaries and totaling roughly $24K in drug spend, split 2% brand-name and 98% 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.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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

1789 CARR 21
SAN JUAN, PR 00921

Provider Details

NPI 1326049156
Specialty Otolaryngology Physician
Credentials M.D.
Gender Male
NPI Issued 08/02/2005

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 GUSTAVO MELERO GIGANTE, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$258

Largest payer

SANOFI-AVENTIS U.S. LLC

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 · Generic-heavy

GUSTAVO MELERO GIGANTE, M.D. — brand share 2.0%
Specialty average (est.)

2% brand-name claims vs 98% generic, on 1,152 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.

1,152
Total Claims
$24K
Total Drug Cost
337
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,422
Total Day Supply
40,542
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$2K
Generic Drug Cost
$23K
Antibiotic Claims
41

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
1.41
Gender Split
64% female / 36% male
Age Distribution
<65: 36, 65-74: 183, 75-84: 93, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Fluticasone Propionate
554
Famotidine
208
Omeprazole
109
Fluocinolone Acetonide Oil
85
Cefuroxime
Cefuroxime Axetil
18
Ipratropium Bromide
16
Synthroid
Levothyroxine Sodium
16
Mometasone Furoate
15
Azelastine-Fluticasone
Azelastine/Fluticasone
14
Losartan Potassium
12

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

Otolaryngology Physician Overview

How GUSTAVO MELERO GIGANTE, M.D. fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

GUSTAVO MELERO GIGANTE, M.D.'s 1,152 claims are above the specialty average of 509.

Nearby Otolaryngology Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as MELERO GIGANTE.

Compare Otolaryngology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GUSTAVO MELERO GIGANTE, M.D.'s specialty?
GUSTAVO MELERO GIGANTE, M.D. specializes in Otolaryngology Physician and practices in SAN JUAN, Puerto Rico. Credentials: M.D..
How much does GUSTAVO MELERO GIGANTE, M.D. prescribe under Medicare Part D?
In 2023, GUSTAVO MELERO GIGANTE, M.D. wrote 1,152 Medicare Part D claims totaling $24K in drug costs for 337 beneficiaries.
Where is GUSTAVO MELERO GIGANTE, M.D. located?
GUSTAVO MELERO GIGANTE, M.D. is located at 1789 CARR 21, SAN JUAN, PR, 00921. Phone: (787) 706-1315.
What is GUSTAVO MELERO GIGANTE, M.D.'s NPI number?
GUSTAVO MELERO GIGANTE, M.D.'s National Provider Identifier (NPI) is 1326049156, issued on 08/02/2005.
Does GUSTAVO MELERO GIGANTE, M.D. prescribe more brand-name or generic drugs?
GUSTAVO MELERO GIGANTE, M.D.'s prescribing is 2% brand-name and 98% generic drugs by claim count, with $2K in brand drug costs.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does GUSTAVO MELERO GIGANTE, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GUSTAVO MELERO GIGANTE, M.D.'s most frequently prescribed drugs include Fluticasone Propionate, Famotidine, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GUSTAVO MELERO GIGANTE, M.D. accept Medicare?
GUSTAVO MELERO GIGANTE, M.D. appears in CMS Medicare data with 1,152 Part D claims and 337 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GUSTAVO MELERO GIGANTE, M.D.'s credentials?
GUSTAVO MELERO GIGANTE, M.D.'s NPI is 1326049156 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