OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending
  • OpenImmigration
  • OpenLobby
  • VaccineWatch
  • OpenSubsidies
  • WarCosts
  • OpenPrescriber

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
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 · OpenFeds · OpenSpending · OpenImmigration · OpenLobby · VaccineWatch · OpenSubsidies · WarCosts

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

Methodology•Download Data
  1. Home
  2. Specialties
  3. Slide Preparation Facility

Slide Preparation Facility

Medicare spending analysis for Slide Preparation Facility providers

🔎 Data Analysis

Slide Preparation Facility accounts for $31.2M in Medicare payments across 164 providers.

The specialty's average markup of 2.7x is below the overall Medicare average of 3.77x.

AI-generated analysis based on Medicare payment data.

Total Payments (10yr)
$31.2M
Top Providers
9
States with Providers
4

Spending Trends (2014-2023)

Year-over-Year Breakdown

YearPaymentsServicesProvidersYoY Change
2014$5.1M182.0K25—
2015$5.2M173.6K24+1.2%
2016$4.6M153.2K24-11.7%
2017$3.3M129.9K21-27.2%
2018$2.8M108.8K16-15.1%
2019$2.9M104.8K14+1.0%
2020$2.0M68.9K12-30.4%
2021$2.0M64.5K10+1.3%
2022$1.7M52.1K9-17.4%
2023$1.6M46.9K9-6.8%

Top Slide Preparation Facility Providers

#ProviderStatePaymentsServicesAvg/Service
1Borsting Laboratories, IncCA$790.1K20.7K$38.08
2Histo-Path Technical Specialties, IncCA$370.4K13.1K$28.31
3Histology CorpIL$118.6K3.9K$30.17
4Spokane Digestive Disease Center, P.S.WA$114.7K3.7K$30.69
5Hemateck LlcCA$84.3K2.6K$32.43
6Western Washington Medical Group, Inc PsWA$38.8K1.4K$26.98
7Robert WalkerIL$21.8K793$27.43
8Independent Histology Service LlcUT$14.0K582$24.07
9Associated Pathology Medical Group, IncCA$1.1K17$64.65

Top Procedures

CodeDescriptionPaymentsServicesAvg/Service
88305Pathology examination of tissue using a microscope, intermediate complexity$1.5M45.5K$31.98
88312Special stained specimen slides to identify organisms including interpretation and report$88.3K1.2K$72.95
88313Special stained specimen slides to examine tissue including interpretation and report$8.9K174$51.41
88304Pathology examination of tissue using a microscope, moderately low complexity$503.1019$26.48

Geographic Distribution

CA
$1.2M
4 providers
WA
$153.5K
2 providers
IL
$140.4K
2 providers
UT
$14.0K
1 providers

Related

Browse
← All Specialties
Fraud Analysis
Slide Preparation Facility fraud risk →
Compare
Compare Slide Preparation Facility →
Investigation
The Specialty Pay Gap →
Investigation
The Specialty Monopoly →
Analysis
Markup Analysis →
Analysis
Fraud Analysis Hub →
Investigation
The Specialty Pay Gap →
Share:

Data Sources

  • • Centers for Medicare & Medicaid Services (CMS)
  • • Medicare Provider Utilization and Payment Data (2014-2023)
  • • CMS National Health Expenditure Data

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.