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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. Timothy Mark
๐Ÿฉบ
MDIndividual

Timothy Mark, MD

NPI: 1588725006
West Palm Beach, FL
10 years of data
Internal Medicine
$5.7M
Total Payments
119.9K
Beneficiaries
167.7K
Services
1.28x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$5.7M
Specialty median$84.0K

๐Ÿ“‹ Key Findings

1Billed $5.7M over 10 years
299th percentile in Internal Medicine by payments
367 services/day โ€” unusually high

This provider averages 67 services per working day

Based on 167.7K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $5.7M in total Medicare payments ranks in the 99th percentile of Internal Medicine providers nationally.

Averaging 67 services per working day raises questions about billing patterns.

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$64.19$50.171.28x$14.02$539.5K17.5K12.6K
2015$61.34$46.151.33x$15.19$667.7K21.4K15.9K
2016$60.36$45.111.34x$15.25$645.7K21.7K16.0K
2017$62.24$48.231.29x$14.01$651.9K21.2K16.0K
2018$62.03$48.991.27x$13.04$663.6K20.7K15.6K
2019$61.32$46.391.32x$14.93$573.5K19.0K14.7K
2020$50.06$40.321.24x$9.74$417.1K11.9K7.9K
2021$61.05$47.171.29x$13.88$465.1K10.9K6.9K
2022$63.69$48.021.33x$15.67$534.0K11.6K7.2K
2023$48.90$34.791.41x$14.11$494.2K11.8K7.1K

Top Procedures (20)

99213Established patient office or other outpatient visit, typically 15 minutes
$826.5K
14.9K services$55.32/svc1.41x markup
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
$825.9K
6.8K services$121.84/svc1.03x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$698.8K
7.7K services$90.30/svc1.43x markup
99443Physician telephone patient service, 21-30 minutes of medical discussion
$447.1K
4.8K services$93.86/svc1.60x markup
90670Pneumococcal vaccine for injection into muscle
$203.7K
1.2K services$166.67/svc1.03x markup
84443Blood test, thyroid stimulating hormone (TSH)
$193.7K
9.6K services$20.10/svc1.11x markup
80053Blood test, comprehensive group of blood chemicals
$146.0K
12.8K services$11.44/svc1.23x markup
82306Vitamin D-3 level
$145.6K
4.1K services$35.28/svc1.12x markup
80061Blood test, lipids (cholesterol and triglycerides)
$144.5K
10.3K services$14.07/svc1.30x markup
99442Physician telephone patient service, 11-20 minutes of medical discussion
$141.2K
2.1K services$66.66/svc1.49x markup
90662Vaccine for influenza for injection into muscle
$127.6K
3.0K services$42.46/svc1.02x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$122.9K
1.4K services$85.97/svc1.28x markup
G0444Annual depression screening, 15 minutes
$119.0K
6.5K services$18.28/svc1.04x markup
85025Complete blood cell count (red cells, white blood cell, platelets), automated test
$113.2K
12.2K services$9.29/svc1.12x markup
99205New patient office or other outpatient visit, typically 60 minutes
$103.0K
651 services$158.15/svc1.38x markup
99495Transitional care management services, moderately complexity, requiring face-to-face visits within 14 days of discharge
$89.1K
651 services$136.86/svc1.30x markup
99496Transitional care management services, highly complexity, requiring face-to-face visits within 7 days of discharge
$82.0K
398 services$206.08/svc1.28x markup
G0008Administration of influenza virus vaccine
$71.5K
3.1K services$23.16/svc1.17x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$61.4K
1.0K services$59.37/svc1.30x markup
83036Hemoglobin A1C level
$60.2K
5.2K services$11.69/svc1.16x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99213Established patient office or other outpatient visit, typically 15 minutes14.9K$826.5K$55.321.41x
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit6.8K$825.9K$121.841.03x
99214Established patient office or other outpatient, visit typically 25 minutes7.7K$698.8K$90.301.43x
99443Physician telephone patient service, 21-30 minutes of medical discussion4.8K$447.1K$93.861.60x
90670Pneumococcal vaccine for injection into muscle1.2K$203.7K$166.671.03x
84443Blood test, thyroid stimulating hormone (TSH)9.6K$193.7K$20.101.11x
80053Blood test, comprehensive group of blood chemicals12.8K$146.0K$11.441.23x
82306Vitamin D-3 level4.1K$145.6K$35.281.12x
80061Blood test, lipids (cholesterol and triglycerides)10.3K$144.5K$14.071.30x
99442Physician telephone patient service, 11-20 minutes of medical discussion2.1K$141.2K$66.661.49x
90662Vaccine for influenza for injection into muscle3.0K$127.6K$42.461.02x
99233Subsequent hospital inpatient care, typically 35 minutes per day1.4K$122.9K$85.971.28x
G0444Annual depression screening, 15 minutes6.5K$119.0K$18.281.04x
85025Complete blood cell count (red cells, white blood cell, platelets), automated test12.2K$113.2K$9.291.12x
99205New patient office or other outpatient visit, typically 60 minutes651$103.0K$158.151.38x
99495Transitional care management services, moderately complexity, requiring face-to-face visits within 14 days of discharge651$89.1K$136.861.30x
99496Transitional care management services, highly complexity, requiring face-to-face visits within 7 days of discharge398$82.0K$206.081.28x
G0008Administration of influenza virus vaccine3.1K$71.5K$23.161.17x
99232Subsequent hospital inpatient care, typically 25 minutes per day1.0K$61.4K$59.371.30x
83036Hemoglobin A1C level5.2K$60.2K$11.691.16x

Markup Analysis

Charge-to-Payment Ratio

1.28x

This provider submits charges 1.28 times higher than what Medicare actually pays.

What This Means

A markup ratio of 1.28x means for every $100 Medicare pays, this provider initially charges $128. This is lower than the national average.

Location

West Palm Beach, FL

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 FL for peer comparison.

Timothy Mark (you)
$5.7M
Patrick Anastasio, D.O.
$39.5M
Steven Newman, MDโš ๏ธ
$35.4M
Abraham Schwarzberg, MD
$34.6M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Patrick Anastasio, D.O.Fort Walton Beach, FL$39.5Mโœ“ Clear
Steven Newman, MDNaples, FL$35.4Mโš ๏ธ Flagged
Abraham Schwarzberg, MDPalm Springs, FL$34.6Mโœ“ Clear

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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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