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

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. John Dorchak
๐Ÿฆด
MDIndividual

John Dorchak, M.D.

NPI: 1528000379
Columbus, GA
10 years of data
Orthopedic Surgery
$5.3M
Total Payments
27.0K
Beneficiaries
31.9K
Services
7.88x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$5.3M
Specialty median$103.3K

๐Ÿ“‹ Key Findings

1Billed $5.3M over 10 years
27.88x markup ratio (above median)
399th percentile in Orthopedic Surgery by payments
420 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $5.3M in total Medicare payments ranks in the 99th percentile of Orthopedic Surgery providers nationally.

Their average markup ratio of 7.88x is significantly above the specialty median of 4.7x.

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 โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$2.2K$276.327.99x$1.9K$536.2K3.2K2.7K
2015$2.3K$296.577.72x$2.0K$602.0K3.5K3.0K
2016$2.3K$276.468.36x$2.0K$596.7K3.7K3.2K
2017$2.1K$270.377.94x$1.9K$511.0K3.1K2.6K
2018$2.4K$314.447.58x$2.1K$545.2K3.2K2.6K
2019$2.3K$290.147.82x$2.0K$514.7K3.1K2.6K
2020$2.4K$306.797.71x$2.1K$524.7K3.1K2.6K
2021$2.3K$287.867.95x$2.0K$527.2K3.2K2.7K
2022$2.2K$283.487.80x$1.9K$492.7K3.1K2.6K
2023$2.3K$262.498.74x$2.0K$422.9K2.7K2.3K

Top Procedures (20)

22633Fusion of lower spine bones with removal of disc, posterior or posterolateral approachโš  6.6x markup
$799.3K
578 services$1.4K/svc6.56x markup
22612Fusion of lower spine bones, posterior or posterolateral approachโš  6.8x markup
$579.3K
517 services$1.1K/svc6.79x markup
22558Fusion of spine bones with removal of disc at lower spinal column, anterior approachโš  12.0x markup
$385.4K
623 services$618.57/svc12.03x markup
22840Insertion of posterior spinal instrumentation at base of neck for stabilization, 1 interspaceโš  11.1x markup
$379.0K
659 services$575.06/svc11.13x markup
99213Established patient office or other outpatient visit, typically 15 minutesโš  3.5x markup
$358.0K
6.8K services$52.64/svc3.49x markup
22551Fusion of spine bones with removal of disc at upper spinal column, anterior approachโš  6.9x markup
$353.6K
286 services$1.2K/svc6.88x markup
63047Partial removal of middle spine bone with release of spinal cord and/or nervesโš  11.9x markup
$268.8K
546 services$492.35/svc11.94x markup
22842Insertion of posterior spinal instrumentation for spinal stabilization, 3 to 6 vertebral segmentsโš  8.8x markup
$256.6K
463 services$554.28/svc8.83x markup
22853Insertion of device into intervertebral disc space of spine and fusion of vertebraeโš  4.9x markup
$178.3K
921 services$193.62/svc4.91x markup
20937Harvest of bone fragments for spine surgery graftโš  13.4x markup
$178.2K
1.4K services$126.77/svc13.44x markup
22845Insertion of anterior spinal instrumentation for spinal stabilization, 2 to 3 vertebral segmentsโš  10.3x markup
$175.0K
324 services$540.26/svc10.31x markup
22851Insertion of spinal instrumentation for spinal stabilizationโš  6.5x markup
$139.9K
464 services$301.52/svc6.51x markup
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidanceโš  8.3x markup
$122.5K
1.3K services$95.95/svc8.34x markup
72148MRI scan of lower spinal canalโš  12.8x markup
$121.2K
1.3K services$92.65/svc12.79x markup
22614Fusion of spine bones, posterior or posterolateral approachโš  4.9x markup
$120.4K
420 services$286.61/svc4.94x markup
72100X-ray of lower and sacral spine, 2 or 3 viewsโš  5.2x markup
$118.9K
5.0K services$23.90/svc5.19x markup
99203New patient office or other outpatient visit, typically 30 minutesโš  3.5x markup
$113.6K
1.6K services$70.62/svc3.49x markup
22585Fusion of spine bones with removal of disc, anterior approachโš  6.6x markup
$72.4K
302 services$239.85/svc6.64x markup
72110X-ray of lower and sacral spine, minimum of 4 viewsโš  5.7x markup
$59.0K
1.9K services$31.84/svc5.72x markup
22552Fusion of spine bones with removal of disc at upper spinal column, anterior approachโš  6.6x markup
$58.1K
196 services$296.61/svc6.62x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
22633Fusion of lower spine bones with removal of disc, posterior or posterolateral approach578$799.3K$1.4K6.56x
22612Fusion of lower spine bones, posterior or posterolateral approach517$579.3K$1.1K6.79x
22558Fusion of spine bones with removal of disc at lower spinal column, anterior approach623$385.4K$618.5712.03x
22840Insertion of posterior spinal instrumentation at base of neck for stabilization, 1 interspace659$379.0K$575.0611.13x
99213Established patient office or other outpatient visit, typically 15 minutes6.8K$358.0K$52.643.49x
22551Fusion of spine bones with removal of disc at upper spinal column, anterior approach286$353.6K$1.2K6.88x
63047Partial removal of middle spine bone with release of spinal cord and/or nerves546$268.8K$492.3511.94x
22842Insertion of posterior spinal instrumentation for spinal stabilization, 3 to 6 vertebral segments463$256.6K$554.288.83x
22853Insertion of device into intervertebral disc space of spine and fusion of vertebrae921$178.3K$193.624.91x
20937Harvest of bone fragments for spine surgery graft1.4K$178.2K$126.7713.44x
22845Insertion of anterior spinal instrumentation for spinal stabilization, 2 to 3 vertebral segments324$175.0K$540.2610.31x
22851Insertion of spinal instrumentation for spinal stabilization464$139.9K$301.526.51x
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidance1.3K$122.5K$95.958.34x
72148MRI scan of lower spinal canal1.3K$121.2K$92.6512.79x
22614Fusion of spine bones, posterior or posterolateral approach420$120.4K$286.614.94x
72100X-ray of lower and sacral spine, 2 or 3 views5.0K$118.9K$23.905.19x
99203New patient office or other outpatient visit, typically 30 minutes1.6K$113.6K$70.623.49x
22585Fusion of spine bones with removal of disc, anterior approach302$72.4K$239.856.64x
72110X-ray of lower and sacral spine, minimum of 4 views1.9K$59.0K$31.845.72x
22552Fusion of spine bones with removal of disc at upper spinal column, anterior approach196$58.1K$296.616.62x

Markup Analysis

Charge-to-Payment Ratio

7.88x

This provider submits charges 7.88 times higher than what Medicare actually pays.

What This Means

A markup ratio of 7.88x means for every $100 Medicare pays, this provider initially charges $788. This is higher than the national average.

Location

Columbus, GA

Provider Verification

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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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