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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. David Klein
๐Ÿฉบ
MDIndividual

David Klein, M.D.,FACA,FACPM

NPI: 1215943360
Longwood, FL
10 years of data
General Practice
$15.3M
Total Payments
189.9K
Beneficiaries
486.7K
Services
3.81x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$15.3M
Specialty median$58.9K

๐Ÿ“‹ Key Findings

1Billed $15.3M over 10 years
23.81x markup ratio (above median)
399th percentile in General Practice by payments
4195 services/day โ€” unusually high
514 procedures with >3x markup

This provider averages 195 services per working day

Based on 486.7K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $15.3M in total Medicare payments ranks in the 99th percentile of General Practice providers nationally.

Averaging 195 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$122.76$27.754.42x$95.01$946.6K41.2K15.3K
2015$136.76$32.324.23x$104.44$1.0M42.1K16.1K
2016$179.91$40.944.39x$138.97$1.5M38.8K16.7K
2017$161.74$38.884.16x$122.86$1.8M45.6K18.4K
2018$195.80$52.903.70x$142.90$1.8M46.9K18.2K
2019$171.56$48.433.54x$123.13$1.7M51.9K21.0K
2020$139.58$40.123.48x$99.46$1.7M54.5K22.2K
2021$131.00$38.233.43x$92.77$1.8M64.8K24.3K
2022$125.87$35.023.59x$90.85$1.6M54.2K20.1K
2023$125.07$34.633.61x$90.44$1.4M46.9K17.7K

Top Procedures (20)

99214Established patient office or other outpatient, visit typically 25 minutes
$2.1M
25.3K services$83.22/svc2.49x markup
G0483Drug test def 22+ classes
$1.5M
6.5K services$230.93/svc2.51x markup
99490Chronic care management services at least 20 minutes per calendar month
$1.3M
36.4K services$35.89/svc2.37x markup
80307Testing for presence of drugโš  3.0x markup
$949.1K
14.5K services$65.57/svc3.05x markup
G0482Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms
$620.2K
3.2K services$192.31/svc2.34x markup
83970Parathormone (parathyroid hormone) levelโš  4.3x markup
$476.1K
10.2K services$46.84/svc4.33x markup
82024Adrenocorticotropic hormone (ACTH) levelโš  3.6x markup
$421.4K
9.6K services$44.06/svc3.62x markup
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
$355.4K
3.0K services$117.29/svc1.41x markup
82670Estradiol (hormone) levelโš  6.7x markup
$329.5K
10.4K services$31.75/svc6.72x markup
84403Testosterone (hormone) levelโš  7.2x markup
$304.6K
10.4K services$29.33/svc7.17x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$281.2K
5.3K services$53.31/svc2.92x markup
84144Progesterone (reproductive hormone) levelโš  5.2x markup
$245.5K
10.4K services$23.70/svc5.16x markup
82306Vitamin D-3 levelโš  6.2x markup
$238.8K
6.9K services$34.72/svc6.19x markup
82627Dehydroepiandrosterone (DHEA-S) hormone levelโš  8.0x markup
$225.1K
9.0K services$24.98/svc8.03x markup
83001Gonadotropin, follicle stimulating (reproductive hormone) levelโš  5.9x markup
$214.3K
10.2K services$21.11/svc5.88x markup
84443Blood test, thyroid stimulating hormone (TSH)โš  6.5x markup
$196.5K
10.3K services$19.06/svc6.53x markup
84481Thyroid hormone, T3 measurementโš  10.7x markup
$194.2K
10.4K services$18.74/svc10.66x markup
83003Human growth hormone levelโš  3.6x markup
$190.9K
10.1K services$18.91/svc3.64x markup
82533Cortisol (hormone) measurementโš  6.8x markup
$189.5K
10.2K services$18.51/svc6.80x markup
86800Thyroglobulin (thyroid protein) antibody measurementโš  6.1x markup
$185.0K
10.2K services$18.07/svc6.13x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99214Established patient office or other outpatient, visit typically 25 minutes25.3K$2.1M$83.222.49x
G0483Drug test def 22+ classes6.5K$1.5M$230.932.51x
99490Chronic care management services at least 20 minutes per calendar month36.4K$1.3M$35.892.37x
80307Testing for presence of drug14.5K$949.1K$65.573.05x
G0482Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms3.2K$620.2K$192.312.34x
83970Parathormone (parathyroid hormone) level10.2K$476.1K$46.844.33x
82024Adrenocorticotropic hormone (ACTH) level9.6K$421.4K$44.063.62x
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit3.0K$355.4K$117.291.41x
82670Estradiol (hormone) level10.4K$329.5K$31.756.72x
84403Testosterone (hormone) level10.4K$304.6K$29.337.17x
99213Established patient office or other outpatient visit, typically 15 minutes5.3K$281.2K$53.312.92x
84144Progesterone (reproductive hormone) level10.4K$245.5K$23.705.16x
82306Vitamin D-3 level6.9K$238.8K$34.726.19x
82627Dehydroepiandrosterone (DHEA-S) hormone level9.0K$225.1K$24.988.03x
83001Gonadotropin, follicle stimulating (reproductive hormone) level10.2K$214.3K$21.115.88x
84443Blood test, thyroid stimulating hormone (TSH)10.3K$196.5K$19.066.53x
84481Thyroid hormone, T3 measurement10.4K$194.2K$18.7410.66x
83003Human growth hormone level10.1K$190.9K$18.913.64x
82533Cortisol (hormone) measurement10.2K$189.5K$18.516.80x
86800Thyroglobulin (thyroid protein) antibody measurement10.2K$185.0K$18.076.13x

Markup Analysis

Charge-to-Payment Ratio

3.81x

This provider submits charges 3.81 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.81x means for every $100 Medicare pays, this provider initially charges $381. This is higher than the national average.

Location

Longwood, FL

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.

Believe this data is inaccurate? Dispute this data