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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.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Gmi Laboratories Llc
๐Ÿ”ฌ
Organization

Gmi Laboratories Llc

NPI: 1154811917
North Hollywood, CA
5 years of data
Clinical Laboratory
$28.7M
Total Payments
147
Beneficiaries
650.8K
Services
1.23x
Markup Ratio

Peer Comparison

97th
percentile in specialty
This provider$28.7M
Specialty median$1.9M

๐Ÿ“‹ Key Findings

1Billed $28.7M over 5 years
297th percentile in Clinical Laboratory by payments
3Payments surged 394% in 2022
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $28.7M in total Medicare payments ranks in the 97th percentile of Clinical Laboratory providers nationally.

Medicare payments to this provider grew 543% from 2019 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 394% in 2022

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
2019$101.67$76.841.32x$24.83$1.8M24.0K15
2020$60.02$47.371.27x$12.65$2.1M44.3K23
2021$47.11$39.311.20x$7.80$2.2M55.2K33
2022$53.05$42.831.24x$10.22$10.7M250.1K44
2023$52.06$42.781.22x$9.28$11.9M277.2K32

Top Procedures (20)

87798Detection test by nucleic acid for organism, amplified probe technique
$7.9M
227.6K services$34.73/svc1.14x markup
G0483Drug 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
$3.9M
15.9K services$242.55/svc1.14x markup
87150Identification of organisms by genetic analysis, amplified probe technique
$3.2M
91.2K services$34.67/svc1.18x markup
87481Detection test for candida species (yeast), amplified probe technique
$2.1M
60.7K services$34.47/svc1.72x markup
87502Detection test by nucleic acid for multiple types influenza virus
$1.4M
15.5K services$90.92/svc1.06x markup
87529Detection test by nucleic acid for herpes simplex virus, amplified probe technique
$1.1M
31.3K services$34.55/svc1.16x markup
87634Detection test by nucleic acid for respiratory syncytial virus, amplified probe technique
$1.1M
15.5K services$68.25/svc1.08x markup
80307Testing for presence of drug, by chemistry analyzers
$796.6K
13.0K services$61.33/svc1.18x markup
87631Detection test by nucleic acid for multiple types of respiratory virus, multiple types or subtypes, 3-5 targets
$728.5K
5.1K services$141.80/svc1.05x markup
U00042019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc, making use of high throughput technologies as described by cms-2020-01-r
$721.7K
9.7K services$74.72/svc1.47x markup
87486Detection test by nucleic acid for chlamydia pneumoniae, amplified probe technique
$634.5K
18.2K services$34.78/svc1.12x markup
87581Detection test by nucleic acid for mycoplasma pneumoniae (bacteria), amplified probe technique
$634.3K
18.2K services$34.78/svc1.12x markup
87640Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique
$612.0K
17.7K services$34.64/svc1.39x markup
87541Detection test by nucleic acid for legionella pneumophila (water borne bacteria), amplified probe technique
$588.5K
17.0K services$34.62/svc1.13x markup
0097UTest for detection of gastrointestinal disease-causing organism using amplified probe
$562.0K
1.6K services$358.62/svc2.05x markup
87498Detection test by nucleic acid for enterovirus (intestinal virus), amplified probe technique
$540.6K
15.7K services$34.54/svc1.16x markup
87651Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique
$516.3K
14.9K services$34.65/svc1.15x markup
87653Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique
$441.0K
12.8K services$34.55/svc1.16x markup
U0005Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within
$225.1K
9.2K services$24.55/svc1.22x markup
87801Detection test by nucleic acid for multiple organisms, amplified probe(s) technique
$181.0K
2.6K services$70.04/svc1.09x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
87798Detection test by nucleic acid for organism, amplified probe technique227.6K$7.9M$34.731.14x
G0483Drug 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/ms15.9K$3.9M$242.551.14x
87150Identification of organisms by genetic analysis, amplified probe technique91.2K$3.2M$34.671.18x
87481Detection test for candida species (yeast), amplified probe technique60.7K$2.1M$34.471.72x
87502Detection test by nucleic acid for multiple types influenza virus15.5K$1.4M$90.921.06x
87529Detection test by nucleic acid for herpes simplex virus, amplified probe technique31.3K$1.1M$34.551.16x
87634Detection test by nucleic acid for respiratory syncytial virus, amplified probe technique15.5K$1.1M$68.251.08x
80307Testing for presence of drug, by chemistry analyzers13.0K$796.6K$61.331.18x
87631Detection test by nucleic acid for multiple types of respiratory virus, multiple types or subtypes, 3-5 targets5.1K$728.5K$141.801.05x
U00042019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc, making use of high throughput technologies as described by cms-2020-01-r9.7K$721.7K$74.721.47x
87486Detection test by nucleic acid for chlamydia pneumoniae, amplified probe technique18.2K$634.5K$34.781.12x
87581Detection test by nucleic acid for mycoplasma pneumoniae (bacteria), amplified probe technique18.2K$634.3K$34.781.12x
87640Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique17.7K$612.0K$34.641.39x
87541Detection test by nucleic acid for legionella pneumophila (water borne bacteria), amplified probe technique17.0K$588.5K$34.621.13x
0097UTest for detection of gastrointestinal disease-causing organism using amplified probe1.6K$562.0K$358.622.05x
87498Detection test by nucleic acid for enterovirus (intestinal virus), amplified probe technique15.7K$540.6K$34.541.16x
87651Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique14.9K$516.3K$34.651.15x
87653Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique12.8K$441.0K$34.551.16x
U0005Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within9.2K$225.1K$24.551.22x
87801Detection test by nucleic acid for multiple organisms, amplified probe(s) technique2.6K$181.0K$70.041.09x

Markup Analysis

Charge-to-Payment Ratio

1.23x

This provider submits charges 1.23 times higher than what Medicare actually pays.

What This Means

A markup ratio of 1.23x means for every $100 Medicare pays, this provider initially charges $123. This is lower than the national average.

Location

North Hollywood, 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 Clinical Laboratory providers in CA for peer comparison.

Gmi Laboratories Llc (you)
$28.7M
Genomic Health, Inc.
$887.6M
Unilab Corporationโš ๏ธ
$868.8M
Caredx Inc.
$751.0M
Laboratory Corporation Of Americaโš ๏ธ
$592.4M
Millennium Health, Llc
$587.9M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Genomic Health, Inc.Redwood City, CA$887.6Mโœ“ Clear
Unilab CorporationWest Hills, CA$868.8Mโš ๏ธ Flagged
Caredx Inc.Brisbane, CA$751.0Mโœ“ Clear
Laboratory Corporation Of AmericaSan Diego, CA$592.4Mโš ๏ธ Flagged
Millennium Health, LlcSan Diego, CA$587.9Mโœ“ 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.

Believe this data is inaccurate? Dispute this data