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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. Tristan Shockley
๐Ÿฆด
MDIndividual

Tristan Shockley, MD

NPI: 1932242542
Laurel, MD
10 years of data
Physical Medicine and Rehabilitation
$4.9M
Total Payments
18.2K
Beneficiaries
52.1K
Services
5.17x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$4.9M
Specialty median$111.8K

๐Ÿ“‹ Key Findings

1Billed $4.9M over 10 years
25.17x markup ratio (above median)
399th percentile in Physical Medicine and Rehabilitation by payments
4Payments surged 180% in 2016
517 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $4.9M in total Medicare payments ranks in the 99th percentile of Physical Medicine and Rehabilitation providers nationally.

Their average markup ratio of 5.17x is significantly above the specialty median of 3.7x.

Medicare payments to this provider grew 2234% 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 180% in 2016

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$311.48$62.534.98x$248.95$47.7K811266
2015$309.56$71.384.34x$238.18$64.7K918296
2016$362.26$85.504.24x$276.76$180.8K2.1K915
2017$456.81$103.824.40x$352.99$116.3K1.3K596
2018$398.28$114.263.49x$284.02$265.2K2.5K1.2K
2019$372.26$104.593.56x$267.67$618.8K6.6K2.2K
2020$287.51$93.803.07x$193.71$690.6K7.5K2.2K
2021$495.65$65.077.62x$430.58$848.0K9.0K2.9K
2022$772.34$78.149.88x$694.20$996.3K10.6K4.2K
2023$1.3K$96.1213.56x$1.2K$1.1M10.6K3.5K

Top Procedures (20)

G0481Drug 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/msโš  3.3x markup
$1.7M
10.9K services$153.77/svc3.25x markup
99214Established patient office or other outpatient, visit typically 25 minutesโš  5.6x markup
$1.7M
17.5K services$95.99/svc5.59x markup
80307Testing for presence of drugโš  7.2x markup
$724.5K
11.7K services$62.05/svc7.24x markup
99213Established patient office or other outpatient visit, typically 15 minutesโš  4.8x markup
$189.4K
3.1K services$61.50/svc4.79x markup
99204New patient office or other outpatient visit, typically 45 minutesโš  5.5x markup
$163.5K
1.2K services$133.90/svc5.50x markup
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidanceโš  6.7x markup
$64.1K
355 services$180.68/svc6.74x markup
95923Testing of autonomic (sympathetic) nervous system functionโš  7.3x markup
$57.6K
519 services$110.92/svc7.26x markup
96132Neuropsychological testing evaluation by qualified health care professional, first 60 minutesโš  10.5x markup
$56.3K
533 services$105.61/svc10.49x markup
95921Testing of autonomic (sympathetic) nervous system functionโš  6.8x markup
$40.3K
523 services$76.99/svc6.85x markup
93922Ultrasound study of arteries of both arms and legsโš  7.3x markup
$38.0K
530 services$71.62/svc7.30x markup
99490Chronic care management services at least 20 minutes per calendar monthโš  4.5x markup
$31.3K
805 services$38.88/svc4.46x markup
G0479Drug tests(s), presumptive, any number of drug classes; any number of devices or procedures by instrumented chemistry analyzers utilizing immunoassay, enzyme assay, TOF, MALDI, LDTD, DESI, DART, GHPC, GC mass spectrometry), includes sample validation whenโš  3.9x markup
$24.1K
314 services$76.70/svc3.86x markup
20610Aspiration and/or injection of large joint or joint capsuleโš  23.0x markup
$21.9K
363 services$60.40/svc23.03x markup
96138Psychological or neuropsychological test administration and scoring by technician, first 30 minutesโš  11.0x markup
$19.9K
653 services$30.44/svc10.96x markup
G0482Drug test(s), definitive, utilizing 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 (an
$19.0K
97 services$196.01/svc2.54x markup
64493Injections of lower or sacral spine facet joint using imaging guidanceโš  5.7x markup
$16.7K
111 services$150.43/svc5.65x markup
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes
$15.1K
351 services$43.07/svc1.83x markup
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
$14.8K
278 services$53.38/svc1.94x markup
99452Telephone or internet referral service, 30 minutesโš  4.8x markup
$14.5K
468 services$31.02/svc4.84x markup
64635Destruction of lower or sacral spinal facet joint nerves using imaging guidanceโš  6.1x markup
$7.3K
34 services$213.29/svc6.11x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
G0481Drug 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/ms10.9K$1.7M$153.773.25x
99214Established patient office or other outpatient, visit typically 25 minutes17.5K$1.7M$95.995.59x
80307Testing for presence of drug11.7K$724.5K$62.057.24x
99213Established patient office or other outpatient visit, typically 15 minutes3.1K$189.4K$61.504.79x
99204New patient office or other outpatient visit, typically 45 minutes1.2K$163.5K$133.905.50x
64483Injections of anesthetic and/or steroid drug into lower or sacral spine nerve root using imaging guidance355$64.1K$180.686.74x
95923Testing of autonomic (sympathetic) nervous system function519$57.6K$110.927.26x
96132Neuropsychological testing evaluation by qualified health care professional, first 60 minutes533$56.3K$105.6110.49x
95921Testing of autonomic (sympathetic) nervous system function523$40.3K$76.996.85x
93922Ultrasound study of arteries of both arms and legs530$38.0K$71.627.30x
99490Chronic care management services at least 20 minutes per calendar month805$31.3K$38.884.46x
G0479Drug tests(s), presumptive, any number of drug classes; any number of devices or procedures by instrumented chemistry analyzers utilizing immunoassay, enzyme assay, TOF, MALDI, LDTD, DESI, DART, GHPC, GC mass spectrometry), includes sample validation when314$24.1K$76.703.86x
20610Aspiration and/or injection of large joint or joint capsule363$21.9K$60.4023.03x
96138Psychological or neuropsychological test administration and scoring by technician, first 30 minutes653$19.9K$30.4410.96x
G0482Drug test(s), definitive, utilizing 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 (an97$19.0K$196.012.54x
64493Injections of lower or sacral spine facet joint using imaging guidance111$16.7K$150.435.65x
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes351$15.1K$43.071.83x
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days278$14.8K$53.381.94x
99452Telephone or internet referral service, 30 minutes468$14.5K$31.024.84x
64635Destruction of lower or sacral spinal facet joint nerves using imaging guidance34$7.3K$213.296.11x

Markup Analysis

Charge-to-Payment Ratio

5.17x

This provider submits charges 5.17 times higher than what Medicare actually pays.

What This Means

A markup ratio of 5.17x means for every $100 Medicare pays, this provider initially charges $517. This is higher than the national average.

Location

Laurel, MD

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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