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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.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

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

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Stephen Parks
๐Ÿฉบ
MDIndividual

Stephen Parks, MD

NPI: 1154387140
Simpsonville, SC
10 years of data
Family Practice
$24.9M
Total Payments
220
Beneficiaries
1.3M
Services
4.08x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$24.9M
Specialty median$55.2K

๐Ÿ“‹ Key Findings

1Billed $24.9M over 10 years
24.08x markup ratio (above median)
399th percentile in Family Practice by payments
4509 services/day โ€” physically implausible
5Payments surged 805% in 2016
615 procedures with >3x markup

โš ๏ธ This provider averages 509 services per working day โ€” physically unusual for an individual practitioner

Based on 1.3M total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $24.9M in total Medicare payments ranks in the 99th percentile of Family Practice providers nationally.

Averaging 509 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 1618% 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

๐Ÿ“ˆ

Notable: Payments increased 805% in 2016

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 โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$71.41$26.212.72x$45.20$225.0K8.6K38
2015$77.85$27.192.86x$50.66$204.1K7.5K34
2016$71.57$19.263.72x$52.31$1.8M95.9K20
2017$107.77$27.693.89x$80.08$2.3M81.9K18
2018$105.24$26.873.92x$78.37$2.9M107.3K20
2019$68.91$17.433.95x$51.48$2.4M140.4K19
2020$67.24$16.814.00x$50.43$3.6M216.0K16
2021$74.45$18.344.06x$56.11$3.6M198.0K17
2022$80.24$18.514.33x$61.73$3.9M212.1K17
2023$85.41$18.804.54x$66.61$3.9M205.6K21

Top Procedures (20)

J2357Injection, omalizumab, 5 mgโš  3.1x markup
$4.0M
143.5K services$28.06/svc3.15x markup
J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mgโš  4.7x markup
$3.3M
101.6K services$32.60/svc4.65x markup
J0517Injection, benralizumab, 1 mgโš  3.9x markup
$2.4M
18.2K services$133.23/svc3.89x markup
J3245Injection, tildrakizumab, 1 mgโš  4.2x markup
$2.4M
22.4K services$108.37/svc4.23x markup
J1745Injection, infliximab, excludes biosimilar, 10 mgโš  5.5x markup
$2.3M
45.6K services$50.15/svc5.53x markup
J3380Injection, vedolizumab, 1 mgโš  4.4x markup
$2.1M
133.5K services$15.42/svc4.44x markup
J0256Injection, alpha 1 proteinase inhibitor (human), not otherwise specified, 10 mg
$2.0M
555.5K services$3.60/svc2.63x markup
J1569Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mgโš  5.1x markup
$1.6M
50.4K services$32.74/svc5.14x markup
J2182Injection, mepolizumab, 1 mgโš  3.2x markup
$1.1M
47.9K services$22.78/svc3.22x markup
J1568Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mgโš  6.5x markup
$535.2K
16.0K services$33.39/svc6.55x markup
J2323Injection, natalizumab, 1 mg
$533.1K
36.6K services$14.56/svc2.45x markup
J0897Injection, denosumab, 1 mgโš  5.1x markup
$392.4K
26.7K services$14.70/svc5.07x 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)
$270.3K
7.3K services$36.90/svc2.95x markup
96365Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or lessโš  3.9x markup
$232.0K
4.6K services$49.98/svc3.89x markup
J3590Unclassified biologicsโš  3.5x markup
$211.7K
63 services$3.4K/svc3.55x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$210.8K
3.3K services$64.52/svc2.40x markup
J2356Injection, tezepelumab-ekko, 1 mgโš  4.1x markup
$206.5K
14.5K services$14.25/svc4.14x markup
96413Administration of chemotherapy into vein, 1 hour or less
$190.6K
2.0K services$95.94/svc2.22x markup
J3357Ustekinumab, for subcutaneous injection, 1 mgโš  4.1x markup
$153.2K
1.0K services$148.01/svc4.13x markup
J9312Injection, rituximab, 10 mgโš  3.1x markup
$91.2K
1.2K services$73.51/svc3.07x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J2357Injection, omalizumab, 5 mg143.5K$4.0M$28.063.15x
J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg101.6K$3.3M$32.604.65x
J0517Injection, benralizumab, 1 mg18.2K$2.4M$133.233.89x
J3245Injection, tildrakizumab, 1 mg22.4K$2.4M$108.374.23x
J1745Injection, infliximab, excludes biosimilar, 10 mg45.6K$2.3M$50.155.53x
J3380Injection, vedolizumab, 1 mg133.5K$2.1M$15.424.44x
J0256Injection, alpha 1 proteinase inhibitor (human), not otherwise specified, 10 mg555.5K$2.0M$3.602.63x
J1569Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg50.4K$1.6M$32.745.14x
J2182Injection, mepolizumab, 1 mg47.9K$1.1M$22.783.22x
J1568Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg16.0K$535.2K$33.396.55x
J2323Injection, natalizumab, 1 mg36.6K$533.1K$14.562.45x
J0897Injection, denosumab, 1 mg26.7K$392.4K$14.705.07x
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)7.3K$270.3K$36.902.95x
96365Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less4.6K$232.0K$49.983.89x
J3590Unclassified biologics63$211.7K$3.4K3.55x
99214Established patient office or other outpatient, visit typically 25 minutes3.3K$210.8K$64.522.40x
J2356Injection, tezepelumab-ekko, 1 mg14.5K$206.5K$14.254.14x
96413Administration of chemotherapy into vein, 1 hour or less2.0K$190.6K$95.942.22x
J3357Ustekinumab, for subcutaneous injection, 1 mg1.0K$153.2K$148.014.13x
J9312Injection, rituximab, 10 mg1.2K$91.2K$73.513.07x

Markup Analysis

Charge-to-Payment Ratio

4.08x

This provider submits charges 4.08 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4.08x means for every $100 Medicare pays, this provider initially charges $408. This is higher than the national average.

Location

Simpsonville, SC

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

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข 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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