2026 NPPES data Ophthalmology Physician NPI 1376620468 M.D.
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GUSTAVO HERNANDEZ, M.D.

Ophthalmology 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
10K
Medicare Part D claims · 1K beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$392.84
9 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GUSTAVO HERNANDEZ, M.D. is a Ophthalmology Physician ([object Object]) practicing in SAN JUAN, Puerto Rico with a Medicare Part D prescribing footprint of 10K claims across 1K beneficiaries — 49% brand-name prescribing . Industry payments of $392.84 across 9 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GUSTAVO HERNANDEZ, M.D. filed 10,091 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 HERNANDEZ, 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 HERNANDEZ, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 11/01/2006

NPI 1376620468

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

10,091 611% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Puerto Rico

How Ophthalmology Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Ophthalmology Physician share within Puerto Rico

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Ophthalmology 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 HERNANDEZ, M.D. is a Ophthalmology Physician provider practicing in SAN JUAN, Puerto Rico, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1376620468. 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 HERNANDEZ, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at METROPOLITAN HOSPITAL SUITE 202, SAN JUAN, PR, 00921, with a listed phone of (787) 781-8182. NPI 1376620468 was issued on 11/01/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HERNANDEZ 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 10,091 prescription claims written by this provider, covering 1,303 Medicare beneficiaries and totaling roughly $920K in drug spend, split 49% brand-name and 51% 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.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

METROPOLITAN HOSPITAL SUITE 202
SAN JUAN, PR 00921

Provider Details

NPI 1376620468
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 11/01/2006

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 HERNANDEZ, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$393

Largest payer

NEW WORLD MEDICAL,INC.

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

GUSTAVO HERNANDEZ, M.D. — brand share 49.0%
Specialty average (est.)

49% brand-name claims vs 51% generic, on 10,091 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.

10,091
Total Claims
$920K
Total Drug Cost
1,303
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,350
Total Day Supply
311,368
Brand vs Generic
49% brand / 51% generic
Brand Drug Cost
$761K
Generic Drug Cost
$158K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
75.9 years
Avg HCC Risk Score
1.63
Gender Split
58% female / 42% male
Age Distribution
<65: 65, 65-74: 509, 75-84: 530, 85+: 199

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
2,941
Lumigan
Bimatoprost
1,431
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
1,170
Prednisolone Acetate
1,095
Ciprofloxacin Hcl
788
Timolol Maleate
403
Combigan
Brimonidine Tartrate/Timolol
369
Dorzolamide Hcl
242
Brimonidine Tartrate-Timolol
Brimonidine Tartrate/Timolol
199
Brimonidine Tartrate
164

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

Ophthalmology Physician Overview

How GUSTAVO HERNANDEZ, M.D. fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

GUSTAVO HERNANDEZ, M.D.'s 10,091 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Puerto Rico

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

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

Frequently Asked Questions

What is GUSTAVO HERNANDEZ, M.D.'s specialty?
GUSTAVO HERNANDEZ, M.D. specializes in Ophthalmology Physician and practices in SAN JUAN, Puerto Rico. Credentials: M.D..
How much does GUSTAVO HERNANDEZ, M.D. prescribe under Medicare Part D?
In 2023, GUSTAVO HERNANDEZ, M.D. wrote 10,091 Medicare Part D claims totaling $920K in drug costs for 1,303 beneficiaries.
Where is GUSTAVO HERNANDEZ, M.D. located?
GUSTAVO HERNANDEZ, M.D. is located at METROPOLITAN HOSPITAL SUITE 202, SAN JUAN, PR, 00921. Phone: (787) 781-8182.
What is GUSTAVO HERNANDEZ, M.D.'s NPI number?
GUSTAVO HERNANDEZ, M.D.'s National Provider Identifier (NPI) is 1376620468, issued on 11/01/2006.
Does GUSTAVO HERNANDEZ, M.D. prescribe more brand-name or generic drugs?
GUSTAVO HERNANDEZ, M.D.'s prescribing is 49% brand-name and 51% generic drugs by claim count, with $761K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does GUSTAVO HERNANDEZ, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GUSTAVO HERNANDEZ, M.D.'s most frequently prescribed drugs include Latanoprost, Lumigan, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GUSTAVO HERNANDEZ, M.D. accept Medicare?
GUSTAVO HERNANDEZ, M.D. appears in CMS Medicare data with 10,091 Part D claims and 1,303 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GUSTAVO HERNANDEZ, M.D.'s credentials?
GUSTAVO HERNANDEZ, M.D.'s NPI is 1376620468 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