2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1295364529 MD
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ALEJANDRO MARIN, MD

Retina Specialist (Ophthalmology) Physician in LOS ANGELES, California. 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.
Industry payments
$1.6K
13 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ALEJANDRO MARIN, MD is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in LOS ANGELES, California . Industry payments of $1.6K across 13 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ALEJANDRO MARIN, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in LOS ANGELES, California, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ALEJANDRO MARIN, MD 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).

ALEJANDRO MARIN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/08/2020

NPI 1295364529

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Specialty distribution in California

How Retina Specialist (Ophthalmology) Physician compares to other specialties among California providers

California providers

Retina Specialist (Ophthalmology) Physician share within California

1. Retina Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Retina Specialist (Ophthalmology) Physician share within California

Specialty board-certification context

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

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

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

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

ALEJANDRO MARIN, MD is a Retina Specialist (Ophthalmology) Physician provider practicing in LOS ANGELES, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1295364529. 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.

ALEJANDRO MARIN, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 100 STEIN PLZ FL 1, LOS ANGELES, CA, 90095, with a listed phone of (310) 825-3090. NPI 1295364529 was issued on 04/08/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MARIN 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Retina Specialist (Ophthalmology) Physician providers operate outside Part D entirely.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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

100 STEIN PLZ FL 1
LOS ANGELES, CA 90095

Provider Details

NPI 1295364529
Specialty Retina Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 04/08/2020

Hospital and facility affiliations

Facilities where ALEJANDRO MARIN, MD 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.

JULES STEIN EYE INSTITUTE MEDICAL GROUP
ARCADIA, CA

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 ALEJANDRO MARIN, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.6K

Largest payer

Alcon Vision 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.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to ALEJANDRO MARIN, MD. To verify ALEJANDRO MARIN, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Retina Specialist (Ophthalmology) Physician Overview

How ALEJANDRO MARIN, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

Nearby Retina Specialist (Ophthalmology) Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as MARIN.

Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALEJANDRO MARIN, MD's specialty?
ALEJANDRO MARIN, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in LOS ANGELES, California. Credentials: MD.
Where is ALEJANDRO MARIN, MD located?
ALEJANDRO MARIN, MD is located at 100 STEIN PLZ FL 1, LOS ANGELES, CA, 90095. Phone: (310) 825-3090.
What is ALEJANDRO MARIN, MD's NPI number?
ALEJANDRO MARIN, MD's National Provider Identifier (NPI) is 1295364529, issued on 04/08/2020.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
Does ALEJANDRO MARIN, MD accept Medicare?
ALEJANDRO MARIN, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALEJANDRO MARIN, MD's credentials?
ALEJANDRO MARIN, MD's NPI is 1295364529 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.
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