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Methodology•Download Data
  1. Home
  2. Providers
  3. Ivonne Herrera
⚕️
MDIndividual

Ivonne Herrera, MD

NPI: 1992856785
Seaford, DE
10 years of data
Rheumatology
$4.8M
Total Payments
43.1K
Beneficiaries
83.3K
Services
2.58x
Markup Ratio

Peer Comparison

96th
percentile in specialty
This provider$4.8M
Specialty median$352.6K

📋 Key Findings

1Billed $4.8M over 10 years
22.58x markup ratio (above median)
396th percentile in Rheumatology by payments
45 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $4.8M in total Medicare payments ranks in the 96th percentile of Rheumatology providers nationally.

Medicare payments to this provider grew 56% from 2014 to 2023.

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$142.86$56.742.52x$86.12$291.2K5.4K2.8K
2015$172.35$74.962.30x$97.39$350.9K5.9K3.1K
2016$165.73$68.132.43x$97.60$448.3K7.6K3.8K
2017$165.85$63.862.60x$101.99$633.8K10.8K5.5K
2018$149.11$50.192.97x$98.92$595.1K10.5K5.4K
2019$149.85$54.082.77x$95.77$734.3K11.7K5.9K
2020$145.52$46.473.13x$99.05$468.6K9.3K5.0K
2021$144.15$49.492.91x$94.66$379.8K7.0K3.8K
2022$134.54$47.892.81x$86.65$397.0K7.2K3.8K
2023$122.95$45.692.69x$77.26$454.5K8.0K4.0K

Top Procedures (20)

99214Established patient office or other outpatient, visit typically 25 minutes
$1.1M
13.9K services$81.92/svc2.41x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$1.1M
19.5K services$57.19/svc2.57x markup
96413Infusion of chemotherapy into a vein up to 1 hour
$433.9K
3.9K services$110.27/svc2.63x markup
96401Non-hormonal anti-neoplastic chemotherapy beneath the skin or into muscle
$343.6K
5.4K services$63.20/svc2.59x markup
20610Aspiration and/or injection of large joint or joint capsule⚠ 3.1x markup
$318.7K
6.3K services$50.88/svc3.11x markup
J7324Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose
$311.5K
2.0K services$157.79/svc2.07x markup
99204New patient office or other outpatient visit, typically 45 minutes
$196.7K
1.6K services$122.74/svc1.64x markup
99203New patient office or other outpatient visit, typically 30 minutes
$120.6K
1.5K services$79.65/svc1.90x markup
99215Established patient office or other outpatient, visit typically 40 minutes
$114.8K
942 services$121.88/svc2.41x markup
J9310Injection, rituximab, 100 mg
$103.8K
184 services$564.40/svc1.44x markup
J0897Injection, denosumab, 1 mg
$86.2K
5.7K services$15.23/svc2.45x markup
20611Aspiration and/or injection of major joint or joint capsule with recording and reporting using ultrasound guidance⚠ 3.8x markup
$68.1K
944 services$72.15/svc3.75x markup
96365Infusion into a vein for therapy, prevention, or diagnosis up to 1 hour⚠ 3.6x markup
$45.1K
820 services$54.98/svc3.59x markup
J0129Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)
$39.7K
1.0K services$38.78/svc2.55x markup
J1745Injection infliximab, 10 mg
$38.5K
684 services$56.23/svc2.10x markup
96415Infusion of chemotherapy into a vein⚠ 7.5x markup
$33.8K
1.5K services$22.91/svc7.53x markup
99205New patient office or other outpatient visit, typically 60 minutes
$30.9K
192 services$161.19/svc2.42x markup
20600Aspiration and/or injection of small joint or joint capsule
$29.8K
778 services$38.36/svc2.84x markup
96372Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
$27.1K
1.6K services$16.98/svc2.39x markup
96375Injection of different drug or substance into a vein for therapy, diagnosis, or prevention⚠ 6.2x markup
$15.9K
1.1K services$14.69/svc6.15x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99214Established patient office or other outpatient, visit typically 25 minutes13.9K$1.1M$81.922.41x
99213Established patient office or other outpatient visit, typically 15 minutes19.5K$1.1M$57.192.57x
96413Infusion of chemotherapy into a vein up to 1 hour3.9K$433.9K$110.272.63x
96401Non-hormonal anti-neoplastic chemotherapy beneath the skin or into muscle5.4K$343.6K$63.202.59x
20610Aspiration and/or injection of large joint or joint capsule6.3K$318.7K$50.883.11x
J7324Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose2.0K$311.5K$157.792.07x
99204New patient office or other outpatient visit, typically 45 minutes1.6K$196.7K$122.741.64x
99203New patient office or other outpatient visit, typically 30 minutes1.5K$120.6K$79.651.90x
99215Established patient office or other outpatient, visit typically 40 minutes942$114.8K$121.882.41x
J9310Injection, rituximab, 100 mg184$103.8K$564.401.44x
J0897Injection, denosumab, 1 mg5.7K$86.2K$15.232.45x
20611Aspiration and/or injection of major joint or joint capsule with recording and reporting using ultrasound guidance944$68.1K$72.153.75x
96365Infusion into a vein for therapy, prevention, or diagnosis up to 1 hour820$45.1K$54.983.59x
J0129Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)1.0K$39.7K$38.782.55x
J1745Injection infliximab, 10 mg684$38.5K$56.232.10x
96415Infusion of chemotherapy into a vein1.5K$33.8K$22.917.53x
99205New patient office or other outpatient visit, typically 60 minutes192$30.9K$161.192.42x
20600Aspiration and/or injection of small joint or joint capsule778$29.8K$38.362.84x
96372Injection beneath the skin or into muscle for therapy, diagnosis, or prevention1.6K$27.1K$16.982.39x
96375Injection of different drug or substance into a vein for therapy, diagnosis, or prevention1.1K$15.9K$14.696.15x

Markup Analysis

Charge-to-Payment Ratio

2.58x

This provider submits charges 2.58 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.58x means for every $100 Medicare pays, this provider initially charges $258. This is higher than the national average.

Location

Seaford, DE

Provider Verification

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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.

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