⚠️ This provider averages 220 services per working day — physically unusual for an individual practitioner
Based on 548.8K total services over 10 years (250 working days/year). Learn about impossible service volumes →
This provider's $25.7M in total Medicare payments ranks in the 99th percentile of Nephrology providers nationally.
Averaging 220 services per working day raises questions about billing patterns.
Medicare payments to this provider grew 127% from 2014 to 2023.
AI-generated analysis based on Medicare payment data.
Average per-service amounts submitted by the provider compared to what Medicare actually paid — the gap represents the markup.
| Year | Avg Submitted | Avg Paid | Markup Ratio | Gap per Service | Total Payments | Services | Beneficiaries |
|---|---|---|---|---|---|---|---|
| 2014 | $143.00 | $36.75 | 3.89x | $106.25 | $1.7M | 46.5K | 20 |
| 2015 | $132.59 | $34.11 | 3.89x | $98.48 | $1.6M | 47.4K | 19 |
| 2016 | $147.97 | $37.60 | 3.94x | $110.37 | $1.8M | 46.6K | 20 |
| 2017 | $119.25 | $35.41 | 3.37x | $83.84 | $2.3M | 65.0K | 26 |
| 2018 | $151.75 | $45.79 | 3.31x | $105.96 | $2.6M | 56.6K | 25 |
| 2019 | $151.75 | $46.98 | 3.23x | $104.77 | $2.7M | 57.7K | 23 |
| 2020 | $151.83 | $46.98 | 3.23x | $104.85 | $3.0M | 63.2K | 29 |
| 2021 | $166.91 | $51.48 | 3.24x | $115.43 | $3.5M | 67.0K | 27 |
| 2022 | $254.08 | $76.80 | 3.31x | $177.28 | $2.8M | 35.8K | 25 |
| 2023 | $209.00 | $61.46 | 3.40x | $147.54 | $3.9M | 63.0K | 31 |
| Code | Description | Services | Payments | Avg/Service | Markup |
|---|---|---|---|---|---|
| 36902 | Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist | 4.0K | $4.9M | $1.2K | 3.20x |
| 36903 | Insertion of needle and/or tube into hemodialysis circuit and insertion of stent in dialysis segment with review by radiologist | 712 | $3.5M | $5.0K | 3.14x |
| 36906 | Removal and/or dissolving of blood clot in hemodialysis circuit and balloon dilation of dialysis segment and placement of stent with review by radiologist | 575 | $3.5M | $6.1K | 3.17x |
| 36905 | Removal and/or dissolving of blood clot in hemodialysis circuit and balloon dilation of dialysis segment with imaging review by radiologist, with balloon tube | 949 | $2.2M | $2.3K | 3.17x |
| 35476 | Balloon dilation of narrowed or blocked vein, accessed through the skin | 1.3K | $1.6M | $1.2K | 3.64x |
| 36907 | Balloon dilation of dialysis segment with review by radiologist | 1.9K | $1.3M | $660.78 | 3.14x |
| 37238 | Insertion of intravascular stents in vein, open or accessed through the skin, with radiological supervision and interpretation | 283 | $1.1M | $4.0K | 3.21x |
| 37248 | Balloon dilation of vein with review by radiologist, initial vein | 709 | $960.2K | $1.4K | 3.33x |
| 37252 | Ultrasound evaluation of blood vessel with review by radiologist, initial vessel | 809 | $805.0K | $995.00 | 3.14x |
| 36147 | Insertion of needle and/or catheter for dialysis | 1.6K | $717.3K | $457.73 | 5.57x |
| 36870 | Catheter removal of blood clot from dialysis graft, accessed through the skin | 384 | $536.8K | $1.4K | 4.01x |
| 36909 | Permanent blockage of hemodialysis circuit with review by radiologist | 266 | $520.5K | $2.0K | 3.14x |
| 36215 | Insertion of tube into chest or arm artery, each first order branch | 768 | $476.1K | $619.89 | 5.28x |
| 36908 | Insertion of stent in dialysis segment with review by radiologist | 218 | $434.9K | $2.0K | 3.14x |
| 36581 | Replacement of tunneled central venous tube | 712 | $334.2K | $469.37 | 5.06x |
| 35475 | Balloon dilation of narrowed or blocked upper arm artery, accessed through the skin | 276 | $332.5K | $1.2K | 3.98x |
| 37246 | Balloon dilation of artery with review by radiologist, initial artery | 184 | $264.3K | $1.4K | 4.23x |
| 36901 | Insertion of needle and/or tube into hemodialysis circuit with review by radiologist | 443 | $239.8K | $541.40 | 3.79x |
| 37241 | Occlusion of venous malformations (other than hemorrhage) with radiological supervision and interpretation, roadmapping, and imaging guidance | 52 | $227.3K | $4.4K | 3.25x |
| 75710 | Review by radiologist of arm or leg artery image | 1.3K | $188.3K | $149.18 | 3.18x |
This provider submits charges 3.42 times higher than what Medicare actually pays.
A markup ratio of 3.42x means for every $100 Medicare pays, this provider initially charges $342. This is higher than the national average.
Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.
Other Nephrology providers in NY for peer comparison.
| Provider | Location | Total Payments | Status |
|---|---|---|---|
| Armistead Williams, M.D. | New York, NY | $37.6M | ✓ Clear |
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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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