OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
Sister Sites: OpenMedicaid · OpenFeds · OpenSpending

© 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodology•Download Data
  1. Home
  2. Providers
  3. Gina Marrero
⚕️
MDIndividual

Gina Marrero, M.D.

NPI: 1205835790
Lynbrook, NY
10 years of data
Undefined Physician type
$4.3M
Total Payments
8.7K
Beneficiaries
10.1K
Services
2.48x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$4.3M
Specialty median$100.2K

📋 Key Findings

1Billed $4.3M over 10 years
22.48x markup ratio (above median)
399th percentile in Undefined Physician type by payments
47 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $4.3M in total Medicare payments ranks in the 99th percentile of Undefined Physician type providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid — the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$1.2K$475.862.42x$676.08$428.1K1.0K895
2015$1.0K$404.602.56x$629.57$465.9K1.1K950
2016$995.10$385.502.58x$609.60$416.3K1.0K875
2017$1.2K$436.672.73x$755.15$386.8K951837
2018$1.1K$393.602.88x$741.87$347.8K885802
2019$990.48$366.772.70x$623.71$351.0K868741
2020$1.0K$394.712.56x$614.52$389.8K878750
2021$1.0K$402.642.48x$597.71$509.6K1.1K932
2022$960.56$384.862.50x$575.70$500.7K1.1K945
2023$954.15$339.932.81x$614.22$499.5K1.1K998

Top Procedures (18)

17311Removal and microscopic examination of growth of the head, neck, hands, feet, or genitals (first stage, up to 5 tissue blocks)
$2.2M
3.7K services$584.37/svc2.24x markup
17312Removal and microscopic examination of growth of the head, neck, hands, feet, or genitals
$552.2K
1.4K services$383.77/svc2.06x markup
17313Removal and microscopic examination of growth of the trunk, arms, or legs (first stage, up to 5 tissue blocks)
$537.6K
900 services$597.37/svc2.15x markup
13132Repair of wound (2.6 to 7.5 centimeters) of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, and/or feet⚠ 7.0x markup
$229.2K
1.0K services$229.22/svc7.03x markup
14041Tissue transfer repair of wound (10.1 to 30.0 sq centimeters) of the forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, and/or feet
$214.3K
239 services$896.55/svc2.26x markup
14061Tissue transfer repair of wound (10.1 to 30.0 sq centimeters) of eyelids, nose, ears, and/or lips
$187.7K
197 services$953.01/svc2.31x markup
17314Removal and microscopic examination of growth of the trunk, arms, or legs
$108.6K
292 services$371.95/svc1.99x markup
12032Repair of wound (2.6 to 7.5 centimeters) of the scalp, underarms, trunk, arms, and/or legs
$95.7K
395 services$242.25/svc2.01x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$89.2K
1.3K services$68.37/svc1.75x markup
13121Repair of wound (2.6 to 7.5 centimeters) of scalp, arms, and/or legs⚠ 3.7x markup
$46.8K
228 services$205.29/svc3.74x markup
11602Removal of malignant growth (1.1 to 2.0 centimeters) of the trunk, arms, or legs⚠ 3.9x markup
$14.9K
129 services$115.82/svc3.89x markup
14060Tissue transfer repair of wound (10 sq centimeters or less) of eyelids, nose, ears, and/or lips
$13.8K
19 services$726.16/svc2.20x markup
12052Repair of wound (2.6 to 5.0 centimeters) of face, ears, eyelids, nose, lips, and/or mouth⚠ 3.2x markup
$13.4K
85 services$157.68/svc3.17x markup
13152Repair of wound (2.6 to 7.5 centimeters) of eyelids, nose, ears, and/or lips⚠ 5.3x markup
$12.7K
53 services$239.92/svc5.35x markup
13101Repair of wound (2.6 to 7.5 centimeters) of trunk⚠ 3.3x markup
$10.1K
52 services$195.18/svc3.33x markup
12042Repair of wound (2.6 to 7.5 centimeters) of neck, hands, feet, and/or genitals⚠ 3.1x markup
$9.7K
61 services$159.62/svc3.13x markup
11100Biopsy of single growth of skin and/or tissue
$906.99
12 services$75.58/svc2.65x markup
11102Biopsy of related skin growth, first growth
$879.42
11 services$79.95/svc2.50x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
17311Removal and microscopic examination of growth of the head, neck, hands, feet, or genitals (first stage, up to 5 tissue blocks)3.7K$2.2M$584.372.24x
17312Removal and microscopic examination of growth of the head, neck, hands, feet, or genitals1.4K$552.2K$383.772.06x
17313Removal and microscopic examination of growth of the trunk, arms, or legs (first stage, up to 5 tissue blocks)900$537.6K$597.372.15x
13132Repair of wound (2.6 to 7.5 centimeters) of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, and/or feet1.0K$229.2K$229.227.03x
14041Tissue transfer repair of wound (10.1 to 30.0 sq centimeters) of the forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, and/or feet239$214.3K$896.552.26x
14061Tissue transfer repair of wound (10.1 to 30.0 sq centimeters) of eyelids, nose, ears, and/or lips197$187.7K$953.012.31x
17314Removal and microscopic examination of growth of the trunk, arms, or legs292$108.6K$371.951.99x
12032Repair of wound (2.6 to 7.5 centimeters) of the scalp, underarms, trunk, arms, and/or legs395$95.7K$242.252.01x
99213Established patient office or other outpatient visit, typically 15 minutes1.3K$89.2K$68.371.75x
13121Repair of wound (2.6 to 7.5 centimeters) of scalp, arms, and/or legs228$46.8K$205.293.74x
11602Removal of malignant growth (1.1 to 2.0 centimeters) of the trunk, arms, or legs129$14.9K$115.823.89x
14060Tissue transfer repair of wound (10 sq centimeters or less) of eyelids, nose, ears, and/or lips19$13.8K$726.162.20x
12052Repair of wound (2.6 to 5.0 centimeters) of face, ears, eyelids, nose, lips, and/or mouth85$13.4K$157.683.17x
13152Repair of wound (2.6 to 7.5 centimeters) of eyelids, nose, ears, and/or lips53$12.7K$239.925.35x
13101Repair of wound (2.6 to 7.5 centimeters) of trunk52$10.1K$195.183.33x
12042Repair of wound (2.6 to 7.5 centimeters) of neck, hands, feet, and/or genitals61$9.7K$159.623.13x
11100Biopsy of single growth of skin and/or tissue12$906.99$75.582.65x
11102Biopsy of related skin growth, first growth11$879.42$79.952.50x

Markup Analysis

Charge-to-Payment Ratio

2.48x

This provider submits charges 2.48 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.48x means for every $100 Medicare pays, this provider initially charges $248. This is higher than the national average.

Location

Lynbrook, NY

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Related

Browse
← Back to Provider Directory
State
All providers in NY →
Specialty
All Undefined Physician type providers →
Tool
Compare this provider →
Analysis
Fraud Watchlist →
Search
Search all providers →

Share This Provider

Share this provider's Medicare payment information

Share:

Data Sources

  • • Centers for Medicare & Medicaid Services (CMS)
  • • Medicare Provider Utilization and Payment Data (2014-2023)
  • • National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

Believe this data is inaccurate? Dispute this data