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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. Nathaniel Montag
🦴
MDI

Nathaniel Montag, MD

NPI: 1033503255
Newark, NJ
10 years of data
Physical Medicine and Rehabilitation
$789.2K
Total Payments
4.4K
Beneficiaries
11.9K
Services
2.31x
Markup Ratio

Peer Comparison

93th
percentile in specialty
This provider$789.2K
Specialty median$111.8K

📋 Key Findings

1Billed $789.2K over 10 years
22.31x markup ratio (above median)
3AI fraud probability: 92.3%
493th percentile in Physical Medicine and Rehabilitation by payments
🤖

AI Risk Assessment

Rank #112 of 500
92.3%fraud probability
Low riskMediumHigh risk

Risk Factors

Matches confirmed fraud profile

What this means

Our machine learning model analyzed billing patterns, service volumes, markup ratios, and peer comparisons to estimate a 92.3% probability that this provider's billing patterns are consistent with known fraud cases. This is ranked #112 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 $789.2K in total Medicare payments ranks in the 93th percentile of Physical Medicine and Rehabilitation 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
$169.2K
2.1K services$79.14/svc1.93x markup
99214Office visit, established patient, moderate complexity
$152.3K
1.9K services$79.15/svc2.21x markup
99215Office visit, established patient, high complexity
$135.4K
1.7K services$79.16/svc2.12x markup
99232Subsequent hospital care, moderate complexity
$118.4K
1.5K services$79.18/svc2.06x markup
99233Subsequent hospital care, high complexity
$101.5K
1.3K services$79.13/svc2.04x markup
93000Electrocardiogram, complete
$84.6K
1.1K services$79.14/svc2.49x markup
71046Chest X-ray, 2 views
$67.7K
855 services$79.16/svc2.52x markup
80053Comprehensive metabolic panel
$50.8K
641 services$79.20/svc2.57x markup
85025Complete blood count with differential
$33.8K
428 services$79.07/svc2.36x markup
36415Venipuncture for blood draw
$16.9K
214 services$79.07/svc2.01x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99213Office visit, established patient, low complexity2.1K$169.2K$79.141.93x
99214Office visit, established patient, moderate complexity1.9K$152.3K$79.152.21x
99215Office visit, established patient, high complexity1.7K$135.4K$79.162.12x
99232Subsequent hospital care, moderate complexity1.5K$118.4K$79.182.06x
99233Subsequent hospital care, high complexity1.3K$101.5K$79.132.04x
93000Electrocardiogram, complete1.1K$84.6K$79.142.49x
71046Chest X-ray, 2 views855$67.7K$79.162.52x
80053Comprehensive metabolic panel641$50.8K$79.202.57x
85025Complete blood count with differential428$33.8K$79.072.36x
36415Venipuncture for blood draw214$16.9K$79.072.01x

Markup Analysis

Charge-to-Payment Ratio

2.31x

This provider submits charges 2.31 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.31x means for every $100 Medicare pays, this provider initially charges $231. This is higher than the national average.

Location

Newark, NJ

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

  • • 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.

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