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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. Jinsong Zhang
⚕️
MDIndividual

Jinsong Zhang, M.D.

NPI: 1215196027
Dover, DE
10 years of data
Rheumatology
$17.1M
Total Payments
170
Beneficiaries
1.2M
Services
1.89x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$17.1M
Specialty median$352.6K

📋 Key Findings

1Billed $17.1M over 10 years
21.89x markup ratio
399th percentile in Rheumatology by payments
4484 services/day — physically implausible
5Payments surged 71% in 2017
65 procedures with >3x markup

⚠️ This provider averages 484 services per working day — physically unusual for an individual practitioner

Based on 1.2M total services over 10 years (250 working days/year). Learn about impossible service volumes →

🔎 Data Analysis

This provider's $17.1M in total Medicare payments ranks in the 99th percentile of Rheumatology providers nationally.

Averaging 484 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 811% 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 71% in 2017

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$46.79$26.361.78x$20.43$382.1K14.5K15
2015$46.42$26.321.76x$20.10$619.2K23.5K15
2016$47.34$27.341.73x$20.00$791.0K28.9K17
2017$26.92$16.541.63x$10.38$1.4M81.9K16
2018$30.33$18.101.68x$12.23$1.6M85.9K15
2019$28.10$16.621.69x$11.48$1.8M110.4K16
2020$26.19$15.541.69x$10.65$2.1M132.5K16
2021$26.55$15.051.76x$11.50$2.2M145.7K19
2022$24.68$11.582.13x$13.10$2.9M246.5K21
2023$23.04$10.232.25x$12.81$3.5M340.2K20

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)
$5.0M
133.0K services$37.86/svc1.61x markup
J0897Injection, denosumab, 1 mg
$3.0M
192.8K services$15.33/svc1.58x 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)
$2.6M
493.4K services$5.21/svc1.88x markup
J1745Injection, infliximab, excludes biosimilar, 10 mg
$2.2M
52.0K services$43.15/svc2.24x markup
J1602Injection, golimumab, 1 mg, for intravenous use⚠ 3.1x markup
$998.6K
88.5K services$11.29/svc3.10x markup
J3111Injection, romosozumab-aqqg, 1 mg
$990.5K
132.3K services$7.49/svc1.50x markup
99214Established patient office or other outpatient visit, 30-39 minutes
$407.5K
4.9K services$82.80/svc1.70x markup
96401Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle
$369.7K
6.4K services$57.75/svc1.51x markup
96413Administration of chemotherapy into vein, 1 hour or less⚠ 3.8x markup
$362.0K
3.4K services$105.63/svc3.79x markup
J3262Injection, tocilizumab, 1 mg
$345.4K
73.5K services$4.70/svc1.70x markup
99213Established patient office or other outpatient visit, 20-29 minutes
$243.4K
4.5K services$54.44/svc1.78x markup
J7325Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg
$140.1K
14.4K services$9.69/svc2.03x markup
99204New patient office or other outpatient visit, 45-59 minutes
$136.8K
1.1K services$120.94/svc1.61x markup
J7326Hyaluronan or derivative, gel-one, for intra-articular injection, per dose
$69.7K
75 services$929.20/svc1.51x markup
99442Telephone medical discussion with physician, 11-20 minutes
$48.0K
784 services$61.23/svc1.65x markup
96365Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less
$41.0K
818 services$50.11/svc2.49x markup
20610Aspiration and/or injection of fluid from large joint⚠ 3.3x markup
$40.1K
843 services$47.52/svc3.29x markup
96415Administration of chemotherapy into vein, each additional hour⚠ 3.3x markup
$30.3K
1.3K services$22.79/svc3.29x markup
J3489Injection, zoledronic acid, 1 mg⚠ 9.2x markup
$24.8K
2.1K services$12.07/svc9.16x markup
99441Telephone medical discussion with physician, 5-10 minutes
$23.6K
666 services$35.37/svc1.90x 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)133.0K$5.0M$37.861.61x
J0897Injection, denosumab, 1 mg192.8K$3.0M$15.331.58x
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)493.4K$2.6M$5.211.88x
J1745Injection, infliximab, excludes biosimilar, 10 mg52.0K$2.2M$43.152.24x
J1602Injection, golimumab, 1 mg, for intravenous use88.5K$998.6K$11.293.10x
J3111Injection, romosozumab-aqqg, 1 mg132.3K$990.5K$7.491.50x
99214Established patient office or other outpatient visit, 30-39 minutes4.9K$407.5K$82.801.70x
96401Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle6.4K$369.7K$57.751.51x
96413Administration of chemotherapy into vein, 1 hour or less3.4K$362.0K$105.633.79x
J3262Injection, tocilizumab, 1 mg73.5K$345.4K$4.701.70x
99213Established patient office or other outpatient visit, 20-29 minutes4.5K$243.4K$54.441.78x
J7325Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg14.4K$140.1K$9.692.03x
99204New patient office or other outpatient visit, 45-59 minutes1.1K$136.8K$120.941.61x
J7326Hyaluronan or derivative, gel-one, for intra-articular injection, per dose75$69.7K$929.201.51x
99442Telephone medical discussion with physician, 11-20 minutes784$48.0K$61.231.65x
96365Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less818$41.0K$50.112.49x
20610Aspiration and/or injection of fluid from large joint843$40.1K$47.523.29x
96415Administration of chemotherapy into vein, each additional hour1.3K$30.3K$22.793.29x
J3489Injection, zoledronic acid, 1 mg2.1K$24.8K$12.079.16x
99441Telephone medical discussion with physician, 5-10 minutes666$23.6K$35.371.90x

Markup Analysis

Charge-to-Payment Ratio

1.89x

This provider submits charges 1.89 times higher than what Medicare actually pays.

What This Means

A markup ratio of 1.89x means for every $100 Medicare pays, this provider initially charges $189. This is lower than the national average.

Location

Dover, DE

Provider Verification

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

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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.

Believe this data is inaccurate? Dispute this data