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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. Zachary Lipman
๐Ÿ’‰
MDI

Zachary Lipman, MD

NPI: 1063583326
Chico, CA
10 years of data
Anesthesiology
$2.8M
Total Payments
7.8K
Beneficiaries
51.0K
Services
10.5x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$2.8M
Specialty median$26.7K

๐Ÿ“‹ Key Findings

1Billed $2.8M over 10 years
210.5x markup ratio (above median)
3Risk score: 66 โ€” flagged for review
499th percentile in Anesthesiology by payments
510 procedures with >3x markup

โš ๏ธ Flagged for Review

Risk Score: 66
  • 258x specialty median spending
  • 76x specialty median beneficiaries
  • 452x specialty median services
View Deep Dives โ†’Report Fraud โ†’

Statistical flag only โ€” not an accusation of fraud

๐Ÿ”Ž Data Analysis

This provider's $2.8M in total Medicare payments ranks in the 99th percentile of Anesthesiology providers nationally.

Their average markup ratio of 10.5x is significantly above the specialty median of 8.8x.

Medicare payments to this provider grew 77% from 2014 to 2023.

This provider has been statistically flagged with a risk score of 66/100. Statistical flags are not accusations of fraud.

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 โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$565.95$53.9010.50x$512.05$192.5K3.6K560
2015$565.95$53.9010.50x$512.05$209.0K3.9K608
2016$565.95$53.9010.50x$512.05$225.5K4.2K656
2017$565.95$53.9010.50x$512.05$242.0K4.5K704
2018$565.85$53.8910.50x$511.96$258.5K4.8K752
2019$565.95$53.9010.50x$512.05$275.0K5.1K800
2020$565.95$53.9010.50x$512.05$291.5K5.4K848
2021$565.95$53.9010.50x$512.05$308.0K5.7K896
2022$565.95$53.9010.50x$512.05$324.5K6.0K944
2023$565.95$53.9010.50x$512.05$341.0K6.3K992

Top Procedures (10)

99213Office/outpatient visit, est patient, lowโš  10.1x markup
$939.0K
17.4K services$53.90/svc10.06x markup
99214Office/outpatient visit, est patient, moderateโš  9.1x markup
$469.5K
8.7K services$53.90/svc9.12x markup
99215Office/outpatient visit, est patient, highโš  11.5x markup
$313.0K
5.8K services$53.90/svc11.50x markup
99223Initial hospital care, high complexityโš  10.4x markup
$234.8K
4.4K services$53.90/svc10.36x markup
99232Subsequent hospital care, moderateโš  10.3x markup
$187.8K
3.5K services$53.90/svc10.27x markup
93000Electrocardiogram, completeโš  9.6x markup
$156.5K
2.9K services$53.89/svc9.59x markup
71046Chest X-ray, 2 viewsโš  10.5x markup
$134.1K
2.5K services$53.90/svc10.53x markup
80053Comprehensive metabolic panelโš  12.5x markup
$117.4K
2.2K services$53.89/svc12.48x markup
85025Complete blood count (CBC)โš  11.4x markup
$104.3K
1.9K services$53.89/svc11.37x markup
36415Venipunctureโš  12.5x markup
$93.9K
1.7K services$53.90/svc12.48x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99213Office/outpatient visit, est patient, low17.4K$939.0K$53.9010.06x
99214Office/outpatient visit, est patient, moderate8.7K$469.5K$53.909.12x
99215Office/outpatient visit, est patient, high5.8K$313.0K$53.9011.50x
99223Initial hospital care, high complexity4.4K$234.8K$53.9010.36x
99232Subsequent hospital care, moderate3.5K$187.8K$53.9010.27x
93000Electrocardiogram, complete2.9K$156.5K$53.899.59x
71046Chest X-ray, 2 views2.5K$134.1K$53.9010.53x
80053Comprehensive metabolic panel2.2K$117.4K$53.8912.48x
85025Complete blood count (CBC)1.9K$104.3K$53.8911.37x
36415Venipuncture1.7K$93.9K$53.9012.48x

Markup Analysis

Charge-to-Payment Ratio

10.5x

This provider submits charges 10.5 times higher than what Medicare actually pays.

What This Means

A markup ratio of 10.5x means for every $100 Medicare pays, this provider initially charges $1050. This is higher than the national average.

Location

Chico, CA

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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