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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. Nephrology Physicians Llc
๐Ÿ”ช
Organization

Nephrology Physicians Llc

NPI: 1003357377
Mishawaka, IN
6 years of data
Ambulatory Surgical Center
$10.0M
Total Payments
3.7K
Beneficiaries
6.7K
Services
4.55x
Markup Ratio

Peer Comparison

97th
percentile in specialty
This provider$10.0M
Specialty median$657.1K

๐Ÿ“‹ Key Findings

1Billed $10.0M over 6 years
24.55x markup ratio (above median)
397th percentile in Ambulatory Surgical Center by payments
4Payments surged 616% in 2019
514 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $10.0M in total Medicare payments ranks in the 97th percentile of Ambulatory Surgical Center providers nationally.

Medicare payments to this provider grew 312% from 2018 to 2023.

68% of their billing comes from a single procedure code (36902 โ€” Insertion of needle and/or catheter into dialysis circuit and balloon dilation of dialysis segment, with imaging including radiological supervision and interpretation).

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 616% 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 โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2018$6.4K$1.4K4.44x$4.9K$346.2K209207
2019$7.2K$1.5K4.71x$5.7K$2.5M1.7K862
2020$9.6K$2.1K4.57x$7.5K$2.6M1.7K886
2021$7.9K$1.7K4.66x$6.2K$1.8M1.3K652
2022$12.1K$2.6K4.59x$9.5K$1.5M938580
2023$10.8K$2.3K4.63x$8.5K$1.4M838542

Top Procedures (14)

36902Insertion of needle and/or catheter into dialysis circuit and balloon dilation of dialysis segment, with imaging including radiological supervision and interpretationโš  4.5x markup
$6.8M
4.2K services$1.6K/svc4.50x markup
36903Insertion of needle and/or catheter into dialysis circuit and insertion of stent in dialysis segment, with imaging including radiological supervision and interpretationโš  4.5x markup
$1.0M
216 services$4.7K/svc4.45x markup
36905Excision of blood clot and/or infusion to dissolve blood clot in dialysis circuit and balloon dilation of dialysis segment, , accessed through the skin, with imaging including radiological supervision and interpretationโš  4.5x markup
$597.9K
166 services$3.6K/svc4.48x markup
36901Insertion of needle and/or catheter into dialysis circuit, with imaging including radiological supervision and interpretationโš  4.6x markup
$401.8K
996 services$403.42/svc4.63x markup
36906Excision of blood clot and/or infusion to dissolve blood clot and balloon dilation of dialysis segment, accessed through the skin, with imaging including radiological supervision and interpretationโš  4.5x markup
$353.8K
43 services$8.2K/svc4.49x markup
36581Replacement of central venous catheterโš  4.6x markup
$300.1K
253 services$1.2K/svc4.59x markup
C7513Dialysis circuit, introduction of needle(s) and/or catheter(s), with diagnostic angiography of the dialysis circuit, including all direct puncture(s) and catheter placement(s), injection(s) of contrast, all necessary imaging from the arterial anastomosis aโš  5.2x markup
$166.2K
173 services$960.49/svc5.20x markup
36558Insertion of central venous catheter for infusion, patient 5 years or olderโš  4.7x markup
$108.8K
109 services$998.09/svc4.66x markup
36589Removal of central venous catheter for infusionโš  4.5x markup
$78.5K
346 services$226.93/svc4.53x markup
36595Mechanical removal of obstructive material from central venous catheterโš  8.9x markup
$75.1K
121 services$620.29/svc8.87x markup
37246Balloon dilation of artery, accessed through the skin or by open procedure, with imaging including radiological supervision and interpretationโš  4.6x markup
$63.0K
42 services$1.5K/svc4.63x markup
37248Balloon dilation of vein with review by radiologist, initial veinโš  4.5x markup
$34.3K
19 services$1.8K/svc4.46x markup
37607Tying or banding of a passage between an artery and veinโš  4.5x markup
$19.0K
19 services$1.0K/svc4.52x markup
J2997Injection, alteplase recombinant, 1 mgโš  4.5x markup
$1.1K
16 services$69.31/svc4.46x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
36902Insertion of needle and/or catheter into dialysis circuit and balloon dilation of dialysis segment, with imaging including radiological supervision and interpretation4.2K$6.8M$1.6K4.50x
36903Insertion of needle and/or catheter into dialysis circuit and insertion of stent in dialysis segment, with imaging including radiological supervision and interpretation216$1.0M$4.7K4.45x
36905Excision of blood clot and/or infusion to dissolve blood clot in dialysis circuit and balloon dilation of dialysis segment, , accessed through the skin, with imaging including radiological supervision and interpretation166$597.9K$3.6K4.48x
36901Insertion of needle and/or catheter into dialysis circuit, with imaging including radiological supervision and interpretation996$401.8K$403.424.63x
36906Excision of blood clot and/or infusion to dissolve blood clot and balloon dilation of dialysis segment, accessed through the skin, with imaging including radiological supervision and interpretation43$353.8K$8.2K4.49x
36581Replacement of central venous catheter253$300.1K$1.2K4.59x
C7513Dialysis circuit, introduction of needle(s) and/or catheter(s), with diagnostic angiography of the dialysis circuit, including all direct puncture(s) and catheter placement(s), injection(s) of contrast, all necessary imaging from the arterial anastomosis a173$166.2K$960.495.20x
36558Insertion of central venous catheter for infusion, patient 5 years or older109$108.8K$998.094.66x
36589Removal of central venous catheter for infusion346$78.5K$226.934.53x
36595Mechanical removal of obstructive material from central venous catheter121$75.1K$620.298.87x
37246Balloon dilation of artery, accessed through the skin or by open procedure, with imaging including radiological supervision and interpretation42$63.0K$1.5K4.63x
37248Balloon dilation of vein with review by radiologist, initial vein19$34.3K$1.8K4.46x
37607Tying or banding of a passage between an artery and vein19$19.0K$1.0K4.52x
J2997Injection, alteplase recombinant, 1 mg16$1.1K$69.314.46x

Markup Analysis

Charge-to-Payment Ratio

4.55x

This provider submits charges 4.55 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4.55x means for every $100 Medicare pays, this provider initially charges $455. This is higher than the national average.

Location

Mishawaka, IN

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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