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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. Mark Samonte
๐Ÿฉบ
MDIndividual

Mark Samonte, M.D.

NPI: 1114140233
Montebello, CA
10 years of data
General Practice
$11.1M
Total Payments
47.0K
Beneficiaries
134.0K
Services
2.13x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$11.1M
Specialty median$58.9K

๐Ÿ“‹ Key Findings

1Billed $11.1M over 10 years
22.13x markup ratio (above median)
399th percentile in General Practice by payments
454 services/day โ€” unusually high
5Payments surged 60% in 2020
61 procedure with >3x markup

This provider averages 54 services per working day

Based on 134.0K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $11.1M in total Medicare payments ranks in the 99th percentile of General Practice providers nationally.

Averaging 54 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 208% 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

๐Ÿ“ˆ

Notable: Payments increased 60% in 2020

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

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$219.22$93.922.33x$125.30$670.6K8.4K2.0K
2015$221.63$98.482.25x$123.15$643.2K7.6K2.1K
2016$212.08$87.352.43x$124.73$612.1K8.6K2.4K
2017$190.64$77.752.45x$112.89$551.9K8.3K2.2K
2018$190.91$75.792.52x$115.12$614.7K9.2K2.3K
2019$204.73$105.451.94x$99.28$925.3K11.1K4.5K
2020$183.19$99.631.84x$83.56$1.5M17.0K6.7K
2021$171.21$90.411.89x$80.80$1.6M18.1K7.2K
2022$206.03$111.371.85x$94.66$2.0M21.7K8.3K
2023$185.55$97.131.91x$88.42$2.1M24.0K9.2K

Top Procedures (20)

99232Subsequent hospital inpatient care, typically 25 minutes per day
$2.3M
37.7K services$60.75/svc2.47x markup
G0181Physician supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician development and/or revision of c
$1.7M
18.8K services$90.95/svc1.77x markup
99350Established patient home visit, typically 60 minutes
$1.5M
9.6K services$152.51/svc1.64x markup
99308Subsequent nursing facility visit, typically 15 minutes per day
$815.5K
15.1K services$54.06/svc2.78x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$811.6K
5.0K services$162.45/svc2.15x markup
99335Established patient assisted living visit, typically 25 minutes
$687.3K
9.4K services$72.85/svc2.65x markup
99345New patient home visit, typically 75 minutes
$624.8K
3.5K services$179.69/svc1.62x markup
99306Initial nursing facility visit, typically 45 minutes per day
$407.0K
3.0K services$135.67/svc1.91x markup
99310Subsequent nursing facility visit, typically 35 minutes per day
$323.5K
3.0K services$107.95/svc2.41x markup
G0180Physician certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imple
$291.7K
6.5K services$44.81/svc2.52x markup
99497Advance care planning by the physician or other qualified health care professional
$266.5K
3.4K services$77.42/svc1.84x markup
G0179Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp
$215.6K
6.0K services$35.65/svc2.08x markup
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
$201.3K
1.1K services$185.20/svc1.30x markup
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
$186.6K
1.3K services$139.38/svc1.29x markup
99348Established patient home visit, typically 25 minutes
$181.5K
2.9K services$62.30/svc2.83x markup
99291Critical care delivery critically ill or injured patient, first 30-74 minutes
$134.0K
727 services$184.33/svc2.17x markup
99238Hospital discharge day management, 30 minutes or lessโš  3.2x markup
$112.5K
1.8K services$62.55/svc3.20x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$83.2K
923 services$90.18/svc2.22x markup
99231Subsequent hospital inpatient care, typically 15 minutes per day
$78.0K
2.0K services$38.51/svc2.60x markup
99326New patient assisted living visit, typically 45 minutes
$62.6K
572 services$109.40/svc1.83x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99232Subsequent hospital inpatient care, typically 25 minutes per day37.7K$2.3M$60.752.47x
G0181Physician supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician development and/or revision of c18.8K$1.7M$90.951.77x
99350Established patient home visit, typically 60 minutes9.6K$1.5M$152.511.64x
99308Subsequent nursing facility visit, typically 15 minutes per day15.1K$815.5K$54.062.78x
99223Initial hospital inpatient care, typically 70 minutes per day5.0K$811.6K$162.452.15x
99335Established patient assisted living visit, typically 25 minutes9.4K$687.3K$72.852.65x
99345New patient home visit, typically 75 minutes3.5K$624.8K$179.691.62x
99306Initial nursing facility visit, typically 45 minutes per day3.0K$407.0K$135.671.91x
99310Subsequent nursing facility visit, typically 35 minutes per day3.0K$323.5K$107.952.41x
G0180Physician certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imple6.5K$291.7K$44.812.52x
99497Advance care planning by the physician or other qualified health care professional3.4K$266.5K$77.421.84x
G0179Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp6.0K$215.6K$35.652.08x
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit1.1K$201.3K$185.201.30x
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit1.3K$186.6K$139.381.29x
99348Established patient home visit, typically 25 minutes2.9K$181.5K$62.302.83x
99291Critical care delivery critically ill or injured patient, first 30-74 minutes727$134.0K$184.332.17x
99238Hospital discharge day management, 30 minutes or less1.8K$112.5K$62.553.20x
99233Subsequent hospital inpatient care, typically 35 minutes per day923$83.2K$90.182.22x
99231Subsequent hospital inpatient care, typically 15 minutes per day2.0K$78.0K$38.512.60x
99326New patient assisted living visit, typically 45 minutes572$62.6K$109.401.83x

Markup Analysis

Charge-to-Payment Ratio

2.13x

This provider submits charges 2.13 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.13x means for every $100 Medicare pays, this provider initially charges $213. This is higher than the national average.

Location

Montebello, 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 General Practice providers in CA for peer comparison.

Mark Samonte (you)
$11.1M
Jack Azad, M.D.โš ๏ธ
$34.5M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Jack Azad, M.D.Los Angeles, CA$34.5Mโš ๏ธ Flagged

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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.

Believe this data is inaccurate? Dispute this data