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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. Joel Rainwater
๐Ÿ“ก
MDIndividual

Joel Rainwater, M.D.

NPI: 1518956499
Gilbert, AZ
10 years of data
Diagnostic Radiology
$29.0M
Total Payments
19.9K
Beneficiaries
26.0K
Services
4.45x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$29.0M
Specialty median$115.6K

๐Ÿ“‹ Key Findings

1Billed $29.0M over 10 years
24.45x markup ratio (above median)
399th percentile in Diagnostic Radiology by payments
4Payments surged 115% in 2015
519 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $29.0M in total Medicare payments ranks in the 99th percentile of Diagnostic Radiology providers nationally.

Medicare payments to this provider grew 105% from 2014 to 2023.

65% of their billing comes from a single procedure code (37229 โ€” Removal of plaque in artery in one leg, endovascular, accessed through the skin or open procedure).

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 115% in 2015

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$6.4K$1.6K4.10x$4.8K$826.5K733579
2015$6.9K$1.6K4.28x$5.3K$1.8M1.4K1.1K
2016$6.5K$1.5K4.45x$5.0K$3.5M2.2K1.6K
2017$7.1K$1.6K4.51x$5.5K$4.2M3.8K2.8K
2018$5.2K$1.2K4.50x$4.1K$2.5M2.3K1.7K
2019$6.9K$1.6K4.40x$5.3K$3.9M2.9K2.2K
2020$5.0K$1.0K4.74x$3.9K$3.9M3.3K2.4K
2021$5.7K$1.3K4.43x$4.4K$3.6M3.6K2.7K
2022$4.6K$1.0K4.57x$3.6K$3.1M3.5K2.9K
2023$4.0K$828.994.86x$3.2K$1.7M2.2K1.9K

Top Procedures (20)

37229Removal of plaque in artery in one leg, endovascular, accessed through the skin or open procedureโš  4.1x markup
$18.7M
2.5K services$7.6K/svc4.11x markup
37225Removal of plaque in arteries in one leg, endovascular, accessed through the skin or open procedureโš  4.9x markup
$5.2M
800 services$6.5K/svc4.89x markup
37227Removal of plaque and insertion of stents into arteries in one leg, endovascular, accessed through the skin or open procedureโš  3.8x markup
$923.9K
79 services$11.7K/svc3.82x markup
36247Insertion of catheter into abdominal pelvic or leg arteryโš  7.3x markup
$674.4K
1.1K services$601.10/svc7.35x markup
37232Balloon dilation of artery in one leg, endovascular, accessed through the skin or open procedureโš  4.0x markup
$530.3K
670 services$791.49/svc4.00x markup
37228Balloon dilation of artery of one leg, endovascular, accessed through the skin or open procedureโš  4.8x markup
$418.8K
124 services$3.4K/svc4.80x markup
75710Radiological supervision and interpretation of imaging of artery of one arm or legโš  12.8x markup
$345.9K
2.8K services$122.40/svc12.78x markup
37242Occlusion of artery with review by radiologistโš  3.8x markup
$273.3K
49 services$5.6K/svc3.83x markup
37233Removal of plaque in artery in one leg, endovascular, accessed through the skin or open procedureโš  4.0x markup
$245.7K
231 services$1.1K/svc3.98x markup
37243Occlusion of tumors or obstructed blood vessel with radiological supervision and interpretation, roadmapping, and imaging guidanceโš  3.9x markup
$206.6K
28 services$7.4K/svc3.90x markup
99214Established patient office or other outpatient, visit typically 25 minutesโš  3.5x markup
$183.5K
2.2K services$85.22/svc3.51x markup
99213Established patient office or other outpatient visit, typically 15 minutesโš  3.4x markup
$154.5K
2.6K services$59.57/svc3.39x markup
99204New patient office or other outpatient visit, typically 45 minutes
$123.0K
1.0K services$118.94/svc2.93x markup
37252Ultrasound evaluation of blood vessel during diagnosis or treatmentโš  4.0x markup
$116.9K
129 services$906.17/svc3.99x markup
36246Insertion of catheter into abdominal pelvic or leg arteryโš  7.5x markup
$109.8K
318 services$345.42/svc7.48x markup
99152Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutesโš  4.2x markup
$101.3K
2.6K services$38.68/svc4.22x markup
76937Ultrasound guidance for accessing into blood vesselโš  5.0x markup
$86.1K
3.3K services$25.90/svc4.98x markup
99203New patient office or other outpatient visit, typically 30 minutesโš  3.6x markup
$62.6K
803 services$77.95/svc3.59x markup
37221Insertion of stents in artery in one side of groin, endovascular, accessed through the skin or open procedureโš  4.1x markup
$57.1K
15 services$3.8K/svc4.07x markup
36902Insertion of needle and/or catheter into dialysis circuit and balloon dilation of dialysis segment, with imaging including radiological supervision and interpretationโš  4.0x markup
$46.6K
48 services$969.95/svc4.03x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
37229Removal of plaque in artery in one leg, endovascular, accessed through the skin or open procedure2.5K$18.7M$7.6K4.11x
37225Removal of plaque in arteries in one leg, endovascular, accessed through the skin or open procedure800$5.2M$6.5K4.89x
37227Removal of plaque and insertion of stents into arteries in one leg, endovascular, accessed through the skin or open procedure79$923.9K$11.7K3.82x
36247Insertion of catheter into abdominal pelvic or leg artery1.1K$674.4K$601.107.35x
37232Balloon dilation of artery in one leg, endovascular, accessed through the skin or open procedure670$530.3K$791.494.00x
37228Balloon dilation of artery of one leg, endovascular, accessed through the skin or open procedure124$418.8K$3.4K4.80x
75710Radiological supervision and interpretation of imaging of artery of one arm or leg2.8K$345.9K$122.4012.78x
37242Occlusion of artery with review by radiologist49$273.3K$5.6K3.83x
37233Removal of plaque in artery in one leg, endovascular, accessed through the skin or open procedure231$245.7K$1.1K3.98x
37243Occlusion of tumors or obstructed blood vessel with radiological supervision and interpretation, roadmapping, and imaging guidance28$206.6K$7.4K3.90x
99214Established patient office or other outpatient, visit typically 25 minutes2.2K$183.5K$85.223.51x
99213Established patient office or other outpatient visit, typically 15 minutes2.6K$154.5K$59.573.39x
99204New patient office or other outpatient visit, typically 45 minutes1.0K$123.0K$118.942.93x
37252Ultrasound evaluation of blood vessel during diagnosis or treatment129$116.9K$906.173.99x
36246Insertion of catheter into abdominal pelvic or leg artery318$109.8K$345.427.48x
99152Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes2.6K$101.3K$38.684.22x
76937Ultrasound guidance for accessing into blood vessel3.3K$86.1K$25.904.98x
99203New patient office or other outpatient visit, typically 30 minutes803$62.6K$77.953.59x
37221Insertion of stents in artery in one side of groin, endovascular, accessed through the skin or open procedure15$57.1K$3.8K4.07x
36902Insertion of needle and/or catheter into dialysis circuit and balloon dilation of dialysis segment, with imaging including radiological supervision and interpretation48$46.6K$969.954.03x

Markup Analysis

Charge-to-Payment Ratio

4.45x

This provider submits charges 4.45 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4.45x means for every $100 Medicare pays, this provider initially charges $445. This is higher than the national average.

Location

Gilbert, AZ

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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