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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.
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Methodology•Download Data
  1. Home
  2. Providers
  3. Susan Zito
⚕️
DOIndividual

Susan Zito, D.O.

NPI: 1407992597
Largo, FL
10 years of data
Rheumatology
$24.7M
Total Payments
418
Beneficiaries
1.5M
Services
2.4x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$24.7M
Specialty median$352.6K

📋 Key Findings

1Billed $24.7M over 10 years
22.4x markup ratio (above median)
399th percentile in Rheumatology by payments
4613 services/day — physically implausible
5Payments surged 291% in 2019
63 procedures with >3x markup

⚠️ This provider averages 613 services per working day — physically unusual for an individual practitioner

Based on 1.5M total services over 10 years (250 working days/year). Learn about impossible service volumes →

🔎 Data Analysis

This provider's $24.7M in total Medicare payments ranks in the 99th percentile of Rheumatology providers nationally.

Averaging 613 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 52% 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

📈

Notable: Payments increased 291% in 2019

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

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$17.86$10.811.65x$7.05$2.4M220.2K47
2015$23.28$14.501.61x$8.78$2.3M158.6K45
2016$44.99$28.481.58x$16.51$1.9M66.5K42
2017$49.93$24.202.06x$25.73$2.0M80.8K43
2018$91.89$33.292.76x$58.60$482.1K14.5K37
2019$90.74$32.022.83x$58.72$1.9M58.9K38
2020$75.23$28.742.62x$46.49$3.1M107.6K43
2021$48.69$18.152.68x$30.54$3.6M197.2K44
2022$34.75$12.322.82x$22.43$3.5M282.9K41
2023$30.15$10.472.88x$19.68$3.6M344.3K38

Top Procedures (20)

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)
$3.8M
110.7K services$34.58/svc1.93x markup
J9312Injection, rituximab, 10 mg⚠ 3.1x markup
$3.0M
43.5K services$69.76/svc3.13x markup
J1602Injection, golimumab, 1 mg, for intravenous use
$2.3M
149.0K services$15.73/svc2.95x markup
J9310Injection, rituximab, 100 mg
$2.3M
3.9K services$591.56/svc1.65x markup
J1745Injection, infliximab, excludes biosimilar, 10 mg
$2.2M
51.5K services$42.28/svc2.98x markup
J3262Injection, tocilizumab, 1 mg
$1.6M
407.0K services$3.95/svc1.61x markup
J0717Injection, certolizumab pegol, 1 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)
$1.6M
335.6K services$4.71/svc2.31x markup
J0897Injection, denosumab, 1 mg
$1.0M
74.5K services$14.02/svc1.81x markup
J3111Injection, romosozumab-aqqg, 1 mg
$954.4K
127.7K services$7.48/svc1.56x markup
99214Established patient office or other outpatient visit, 30-39 minutes
$618.2K
7.1K services$86.78/svc2.64x markup
96413Administration of chemotherapy into vein, 1 hour or less
$559.6K
5.4K services$103.02/svc2.93x markup
J7326Hyaluronan or derivative, gel-one, for intra-articular injection, per dose
$541.0K
572 services$945.80/svc1.46x markup
86235Measurement of antibody for assessment of autoimmune disorder, any method
$505.6K
25.3K services$20.00/svc2.25x markup
J7327Hyaluronan or derivative, monovisc, for intra-articular injection, per dose
$388.2K
540 services$718.86/svc2.26x markup
Q4206Fluid flow or fluid gf, 1 cc
$365.6K
222 services$1.6K/svc1.88x markup
J7325Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg⚠ 3.2x markup
$321.8K
33.2K services$9.69/svc3.23x markup
96401Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle
$282.8K
5.0K services$57.00/svc2.71x markup
J3357Ustekinumab, for subcutaneous injection, 1 mg
$282.7K
1.9K services$146.10/svc1.71x markup
99215Established patient office or other outpatient visit, 40-54 minutes
$187.9K
1.7K services$109.78/svc1.82x markup
96372Injection of drug or substance under skin or into muscle⚠ 3.5x markup
$185.8K
13.0K services$14.24/svc3.54x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
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)110.7K$3.8M$34.581.93x
J9312Injection, rituximab, 10 mg43.5K$3.0M$69.763.13x
J1602Injection, golimumab, 1 mg, for intravenous use149.0K$2.3M$15.732.95x
J9310Injection, rituximab, 100 mg3.9K$2.3M$591.561.65x
J1745Injection, infliximab, excludes biosimilar, 10 mg51.5K$2.2M$42.282.98x
J3262Injection, tocilizumab, 1 mg407.0K$1.6M$3.951.61x
J0717Injection, certolizumab pegol, 1 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)335.6K$1.6M$4.712.31x
J0897Injection, denosumab, 1 mg74.5K$1.0M$14.021.81x
J3111Injection, romosozumab-aqqg, 1 mg127.7K$954.4K$7.481.56x
99214Established patient office or other outpatient visit, 30-39 minutes7.1K$618.2K$86.782.64x
96413Administration of chemotherapy into vein, 1 hour or less5.4K$559.6K$103.022.93x
J7326Hyaluronan or derivative, gel-one, for intra-articular injection, per dose572$541.0K$945.801.46x
86235Measurement of antibody for assessment of autoimmune disorder, any method25.3K$505.6K$20.002.25x
J7327Hyaluronan or derivative, monovisc, for intra-articular injection, per dose540$388.2K$718.862.26x
Q4206Fluid flow or fluid gf, 1 cc222$365.6K$1.6K1.88x
J7325Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg33.2K$321.8K$9.693.23x
96401Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle5.0K$282.8K$57.002.71x
J3357Ustekinumab, for subcutaneous injection, 1 mg1.9K$282.7K$146.101.71x
99215Established patient office or other outpatient visit, 40-54 minutes1.7K$187.9K$109.781.82x
96372Injection of drug or substance under skin or into muscle13.0K$185.8K$14.243.54x

Markup Analysis

Charge-to-Payment Ratio

2.4x

This provider submits charges 2.4 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.4x means for every $100 Medicare pays, this provider initially charges $240. This is higher than the national average.

Location

Largo, FL

Provider Verification

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

Similar Providers

Other Rheumatology providers in FL for peer comparison.

Susan Zito (you)
$24.7M
Aymen Kenawy, M.D.
$56.3M
Vipul Joshi, MD
$41.8M
Adam Rosen, MD
$38.6M
Eugenia Rullan Bidot, MD
$38.2M
Marc Hirsh, M.D.
$33.8M
Show detailed table ▾
ProviderLocationTotal PaymentsStatus
Aymen Kenawy, M.D.Lynn Haven, FL$56.3M✓ Clear
Vipul Joshi, MDBrandon, FL$41.8M✓ Clear
Adam Rosen, MDClearwater, FL$38.6M✓ Clear
Eugenia Rullan Bidot, MDClearwater, FL$38.2M✓ Clear
Marc Hirsh, M.D.Delray Beach, FL$33.8M✓ Clear

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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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