OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
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 · OpenFeds · OpenSpending

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

Methodology•Download Data
  1. Home
  2. Providers
  3. Kevin Kempf
⚕️
MDIndividual

Kevin Kempf, MD

NPI: 1003895020
San Antonio, TX
10 years of data
Rheumatology
$23.9M
Total Payments
431
Beneficiaries
1.4M
Services
3.02x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$23.9M
Specialty median$352.6K

📋 Key Findings

1Billed $23.9M over 10 years
23.02x markup ratio (above median)
399th percentile in Rheumatology by payments
4541 services/day — physically implausible
510 procedures with >3x markup

⚠️ This provider averages 541 services per working day — physically unusual for an individual practitioner

Based on 1.4M total services over 10 years (250 working days/year). Learn about impossible service volumes →

🔎 Data Analysis

This provider's $23.9M in total Medicare payments ranks in the 99th percentile of Rheumatology providers nationally.

Averaging 541 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 181% 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

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid — the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$87.48$35.782.44x$51.70$1.3M36.0K43
2015$58.68$22.872.57x$35.81$1.3M57.3K41
2016$39.83$15.522.57x$24.31$1.9M123.0K38
2017$56.46$21.662.61x$34.80$2.4M109.7K45
2018$62.00$23.542.63x$38.46$2.6M111.5K45
2019$53.31$20.112.65x$33.20$2.5M123.2K40
2020$56.38$20.332.77x$36.05$2.5M121.5K44
2021$58.77$19.213.06x$39.56$2.7M142.9K42
2022$48.30$13.033.71x$35.27$3.1M238.1K49
2023$49.75$12.493.98x$37.26$3.6M290.1K44

Top Procedures (20)

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)⚠ 3.0x markup
$6.7M
186.1K services$36.27/svc3.03x markup
J1745Injection, infliximab, excludes biosimilar, 10 mg
$4.5M
88.0K services$50.98/svc2.98x markup
J0717Injection, certolizumab pegol, 1 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)⚠ 3.1x markup
$3.0M
570.0K services$5.27/svc3.15x markup
J9312Injection, rituximab, 10 mg⚠ 3.1x markup
$1.5M
21.2K services$69.84/svc3.11x markup
J1602Injection, golimumab, 1 mg, for intravenous use⚠ 3.8x markup
$1.4M
111.9K services$12.65/svc3.82x markup
J9310Injection, rituximab, 100 mg
$1.1M
1.8K services$637.13/svc2.52x markup
J0897Injection, denosumab, 1 mg
$902.2K
59.2K services$15.25/svc2.49x markup
99214Established patient office or other outpatient visit, 30-39 minutes
$785.0K
9.9K services$79.07/svc2.89x markup
J3262Injection, tocilizumab, 1 mg⚠ 3.6x markup
$721.1K
167.7K services$4.30/svc3.65x markup
96413Administration of chemotherapy into vein, 1 hour or less⚠ 3.0x markup
$611.9K
6.0K services$102.58/svc3.04x markup
86235Measurement of antibody for assessment of autoimmune disorder, any method
$353.8K
17.4K services$20.29/svc2.29x markup
J7323Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose
$268.2K
2.5K services$108.61/svc2.80x markup
96401Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle
$210.2K
3.7K services$57.42/svc3.00x markup
20611Aspiration and/or injection of fluid large joint using ultrasound guidance⚠ 3.2x markup
$178.9K
2.1K services$83.97/svc3.18x markup
80053Blood test, comprehensive group of blood chemicals
$127.6K
11.1K services$11.48/svc2.34x markup
99204New patient office or other outpatient visit, 45-59 minutes⚠ 3.5x markup
$127.5K
1.1K services$118.69/svc3.53x markup
82306Vitamin d-3 level
$111.6K
3.5K services$32.02/svc2.27x markup
Q5103Injection, infliximab-dyyb, biosimilar, (inflectra), 10 mg⚠ 3.1x markup
$104.4K
2.4K services$44.41/svc3.14x markup
Q5104Injection, infliximab-abda, biosimilar, (renflexis), 10 mg⚠ 4.0x markup
$100.4K
3.4K services$29.98/svc3.97x markup
85025Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
$93.4K
10.8K services$8.68/svc2.33x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
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)186.1K$6.7M$36.273.03x
J1745Injection, infliximab, excludes biosimilar, 10 mg88.0K$4.5M$50.982.98x
J0717Injection, certolizumab pegol, 1 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)570.0K$3.0M$5.273.15x
J9312Injection, rituximab, 10 mg21.2K$1.5M$69.843.11x
J1602Injection, golimumab, 1 mg, for intravenous use111.9K$1.4M$12.653.82x
J9310Injection, rituximab, 100 mg1.8K$1.1M$637.132.52x
J0897Injection, denosumab, 1 mg59.2K$902.2K$15.252.49x
99214Established patient office or other outpatient visit, 30-39 minutes9.9K$785.0K$79.072.89x
J3262Injection, tocilizumab, 1 mg167.7K$721.1K$4.303.65x
96413Administration of chemotherapy into vein, 1 hour or less6.0K$611.9K$102.583.04x
86235Measurement of antibody for assessment of autoimmune disorder, any method17.4K$353.8K$20.292.29x
J7323Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose2.5K$268.2K$108.612.80x
96401Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle3.7K$210.2K$57.423.00x
20611Aspiration and/or injection of fluid large joint using ultrasound guidance2.1K$178.9K$83.973.18x
80053Blood test, comprehensive group of blood chemicals11.1K$127.6K$11.482.34x
99204New patient office or other outpatient visit, 45-59 minutes1.1K$127.5K$118.693.53x
82306Vitamin d-3 level3.5K$111.6K$32.022.27x
Q5103Injection, infliximab-dyyb, biosimilar, (inflectra), 10 mg2.4K$104.4K$44.413.14x
Q5104Injection, infliximab-abda, biosimilar, (renflexis), 10 mg3.4K$100.4K$29.983.97x
85025Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count10.8K$93.4K$8.682.33x

Markup Analysis

Charge-to-Payment Ratio

3.02x

This provider submits charges 3.02 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.02x means for every $100 Medicare pays, this provider initially charges $302. This is higher than the national average.

Location

San Antonio, TX

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Similar Providers

Other Rheumatology providers in TX for peer comparison.

Kevin Kempf (you)
$23.9M
Constantine Saadeh, M.D.
$39.3M
Grace Makhlouf, M.D.
$34.2M
Show detailed table ▾
ProviderLocationTotal PaymentsStatus
Constantine Saadeh, M.D.Amarillo, TX$39.3M✓ Clear
Grace Makhlouf, M.D.Sugar Land, TX$34.2M✓ Clear

Related

Browse
← Back to Provider Directory
State
All providers in TX →
Specialty
All Rheumatology providers →
Tool
Compare this provider →
Analysis
Fraud Watchlist →
Search
Search all providers →

Share This Provider

Share this provider's Medicare payment information

Share:

Data Sources

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

Believe this data is inaccurate? Dispute this data