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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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Methodology•Download Data
  1. Home
  2. Providers
  3. Chinh Mai
🩺
MDI

Chinh Mai, MD

NPI: 1992017636
Los Angeles, CA
10 years of data
Internal Medicine
$2.8M
Total Payments
20.8K
Beneficiaries
63.4K
Services
2.5x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$2.8M
Specialty median$84.0K

📋 Key Findings

1Billed $2.8M over 10 years
22.5x markup ratio (above median)
3AI fraud probability: 90.3%
498th percentile in Internal Medicine by payments
🤖

AI Risk Assessment

Rank #254 of 500
90.3%fraud probability
Low riskMediumHigh risk

Risk Factors

7-figure billing
Multi-million billing

What this means

Our machine learning model analyzed billing patterns, service volumes, markup ratios, and peer comparisons to estimate a 90.3% probability that this provider's billing patterns are consistent with known fraud cases. This is ranked #254 out of 500 highest-risk providers analyzed. This is a statistical prediction, not a determination of fraud.

View all ML-flagged providers →Methodology →

ML model prediction — not an accusation of fraud

🔎 Data Analysis

This provider's $2.8M in total Medicare payments ranks in the 98th percentile of Internal Medicine providers nationally.

Medicare payments to this provider grew 107% from 2014 to 2023.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Top Procedures (10)

99213Office visit, established patient, low complexity
$602.8K
11.8K services$51.29/svc2.78x markup
99214Office visit, established patient, moderate complexity
$542.5K
10.6K services$51.29/svc2.10x markup
99215Office visit, established patient, high complexity
$482.2K
9.4K services$51.29/svc2.08x markup
99232Subsequent hospital care, moderate complexity
$422.0K
8.2K services$51.29/svc2.53x markup
99233Subsequent hospital care, high complexity
$361.7K
7.1K services$51.29/svc2.55x markup
93000Electrocardiogram, complete
$301.4K
5.9K services$51.29/svc2.97x markup
71046Chest X-ray, 2 views
$241.1K
4.7K services$51.29/svc2.08x markup
80053Comprehensive metabolic panel
$180.8K
3.5K services$51.29/svc2.11x markup
85025Complete blood count with differential
$120.6K
2.4K services$51.28/svc2.74x markup
36415Venipuncture for blood draw
$60.3K
1.2K services$51.30/svc2.88x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99213Office visit, established patient, low complexity11.8K$602.8K$51.292.78x
99214Office visit, established patient, moderate complexity10.6K$542.5K$51.292.10x
99215Office visit, established patient, high complexity9.4K$482.2K$51.292.08x
99232Subsequent hospital care, moderate complexity8.2K$422.0K$51.292.53x
99233Subsequent hospital care, high complexity7.1K$361.7K$51.292.55x
93000Electrocardiogram, complete5.9K$301.4K$51.292.97x
71046Chest X-ray, 2 views4.7K$241.1K$51.292.08x
80053Comprehensive metabolic panel3.5K$180.8K$51.292.11x
85025Complete blood count with differential2.4K$120.6K$51.282.74x
36415Venipuncture for blood draw1.2K$60.3K$51.302.88x

Markup Analysis

Charge-to-Payment Ratio

2.5x

This provider submits charges 2.5 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.5x means for every $100 Medicare pays, this provider initially charges $250. This is higher than the national average.

Location

Los Angeles, CA

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 Internal Medicine providers in CA for peer comparison.

Chinh Mai (you)
$2.8M
Aaron Jeng, MD, MPH
$45.6M
Richard Park, M.D.⚠️
$34.7M
Show detailed table ▾
ProviderLocationTotal PaymentsStatus
Aaron Jeng, MD, MPHSan Gabriel, CA$45.6M✓ Clear
Richard Park, M.D.Granada Hills, CA$34.7M⚠️ Flagged

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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