The Value of Clinical Interventional Radiology · The growing use of interventional radiology...

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DEPARTMENT OF RADIOLOGY Raymond Liu, MD, FSIR Department of Radiology Massachusetts General Hospital The Value of Clinical Interventional Radiology

Transcript of The Value of Clinical Interventional Radiology · The growing use of interventional radiology...

Page 1: The Value of Clinical Interventional Radiology · The growing use of interventional radiology techniques signals a need to redefine the radiologist’s role in patient management…[we]

DEPARTMENT OF RADIOLOGY

Raymond Liu, MD, FSIRDepartment of RadiologyMassachusetts General Hospital

The Value of Clinical Interventional Radiology

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Agenda

• Clinical IR: A Journey• Revenue opportunity• MGH case study• Conclusions

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The growing use of interventional radiology techniques signals a need to redefine the radiologist’s role in

patient management…[we] must decide whether [we] want to participate more fully in clinical matters

such as patient selection and follow-up care.

Ernie Ring, 1983

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Introduction

• Interventional Radiology (IR) has been transitioning to an increasingly clinical delivery model in both outpatient and inpatient settings for years

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Introduction

• Interventional Radiology (IR) has been transitioning to an increasingly clinical delivery model in both outpatient and inpatient settings for years

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Clinical IR means focusing on the patient before and after the procedure

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Admitting and discharging patients becomes a skill necessary to learn

Discharge Process

Admission Guidelines

• Define admitting policy based on procedure mix and clinical training

• Develop consistent protocols• Arrange 24/7 coverage

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However, there is wide variation in clinical care models

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But very few IRs understand the financial impact of their clinical IR work

• Most radiology departments focus on procedural and exam based CPT codes to drive revenue and profit

• Conception that non-procedural activities redirect provider time from traditionally RVU-generating tasks– Especially pronounced when staff intentionally freed from

procedural duties

• With IR outpatient clinics and in patient rounding continue to evolve, reliable sense of revenue and profit is limited

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Traditional IR mindshare:Focused primarily on procedures

InpatientConsults

Procedures

Clinic / Rounds

OutpatientClinic

• Clinical care• Feed case pipeline• Enhance patient/referrer

perception of IR as clinical specialty

Inpatient Rounding

• Clinical care• New patients, follow-up care• Multi-touch interface with

clinical teams

Our Mindshare E&M Activities Benefits

• Clinical care• Feed case pipeline• Branding IR as true clinical

consult service

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“Best practice” clinical IR:What does it look like?

Inpatient Team Outpatient Team

Team

Patient population

Setting

Examples

+ + + +/-Attending APC(s) Trainee Attending APC(s) Trainee

• New consults for IR expertise• Pre- and post-procedural care on

IR or med/surg inpatient service

• New referrals, self-referrals to IR clinic

• Pre-procedural, follow-up, and longitudinal care for IR patients

• Inpatient floors (med/surg/ICU)• Emergency room• Observation units

• Stand-alone IR clinic, often near angio suites

• Co-located clinics (e.g. multidisciplinary HCC/onc)

• Consult for acute GI bleed, +/-angio, +/- follow up visits on ICU service

• s/p UAE for pain management on IR service

• HCC patient seen with team of hepatology, med-onc, transplant surg, IR

• Chronic venous insufficiency patient seen in IR clinic

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Inpatient rounding/consult team

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Co-located multidisciplinary clinic

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Maximizing advanced practitioner billing is critical

• Incident to billing– APs see established patients alone and bill under

supervising MD

• Independent billing– APs practice in collaborative environment, but MD

presence not required– AP is billing provider

• Shared visits– Both MD and AP perform significant portions of the visit

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Sparse literature nonetheless underscores opportunity

• Emory:– Duszak and Borst showed that Medicare IR claims

for nonprocedural clinical encounters increased by 1,200% from 1993-2008, with 1,112% growth attributed to inpatients

• MCoW:– White et al demonstrated that a structured

approach to increasing inpatient RVU capture resulted in 722% growth in charges and 831% growth in collected revenues over a 3 year period

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Agenda

• Clinical IR: A Journey• Revenue opportunity• MGH case study• Conclusions

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What is Evaluation & Management (E&M)?

• E&M forms basis of payments from all US payers• Requires direct, face-to-face physician-patient encounter• Coded with Current Procedural Terminology (CPT) codes that

are distinct from procedures• E&M codes reflect various features of clinical services

• Physician status (treating physician versus consultant)• Patient status (inpatient versus outpatient)• Service complexity• Time spent

• Governed by the global period

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However, finances have traditionally skewed in favor of procedures

ProceduralRevenue

E&M

Dollars ($)

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Goal: Expand E&M contribution to total IR revenues

ProceduralRevenue

E&M

Dollars ($)

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E&M growth does not occur in isolation

ProceduralRevenue

E&M

Dollars ($)

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“Halo” effect of E&M work expands practice

ProceduralRevenue

E&M

Dollars ($)

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Virtuous cycle feeds E&M, procedural revenue, and vice versa

Dollars ($)

ProceduralRevenue

E&M

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Our purpose

• Develop a financial modeling tool to assess potential revenues and profits generated from an outpatient interventional radiology (IR) clinic

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Our approach

• Model a baseline hypothetical IR clinic• Estimate current top-line revenuesStep 1:

Baseline Model

Step 2:Estimate Range of Possibilities

• Project range of potential revenues for IR practices of all different sizes

• Assess implications for daily practice as well as longer term division strategy

Step 2:Assess

Profitability

• Perform back of the envelope analysis to understand profitability of the enterprise

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Materials and Methods

Volume Mix PriceX X

Revenues

• How much do I sell

• What am I selling?

• How much am I charging?

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Revenue opportunities can be analyzed in both outpatient and inpatient settings

AverageCensus E&M Case Mix Staffing Mix Documentation Charges and

Collection Rate

Ass

umpt

ions

X X X X

• 8 existing patients per day

• 4 new patients per day

• New patients E&M mix (0% / 2% / 11% / 57% / 30%)

• Existing patients E&M mix (0% / 3% / 9% / 50% / 38%)

• APC solo visits and billing (0-5% of all visits)

• APC billing as % of attending physician (85%)

• Compliance with billing documentation by providers (95%)

• Estimated charges for new patients: $150-$650

• Estimated charges for existing patients: $75-$450

• Estimated gross collection rate: 30%

Formula and assumptions for calculating clinic $$ revenueVolume Mix PriceX X

Similar approach for inpatient practice

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Financial model mechanicsIRINPATIENTCLINICALMODEL Type: Source:ModelControl

ScenarioToggling CAUTIOUS 4 HitF-9tocalculate

AssumptionsGlobal

Workingdayspermonth 20 # N/ANumberofAdvancedPractitioners(AP) 3 # fact

%ofAPpatienttimebyNP 30% % Historicaldata;ExperienceNPbillingrateas%ofStaff 85% % CMS

%ofAPpatienttimebyPA 67% % calcPAbillingrateas%ofStaff 0% % CMS

Blendedbillinglevelas%ofstaffforAP 28% % calc

NewPatients#ofNewConsultsperDay 1 # Historicaldata;Experience

E&MDistributionLevel1 30% % HistoricaldataLevel2 60% % HistoricaldataLevel3 10% % HistoricaldataLevel4 0% % HistoricaldataLevel5 0% % Historicaldata

ProviderMixAPAlone 0% % Historicaldata;ExperienceAP+Staff 100% % calc

ProviderComplianceLevelwithDocumentationandProviderBilling(PatientKeeper)Level1 40% % Historicaldata;ExperienceLevel2 40% % feedLevel3 40% % feedLevel4 40% % feedLevel5 40% % feed

PercentageBillability2/2GlobalPeriodReductionLevel1 100% % MGHanalysis(ouranalysissuggestshighestvolume/revenuegeneratorsarealmostallnotaffectedbyglobalpreiodreduction)Level2 100% % feedLevel3 100% % feedLevel4 100% % feedLevel5 100% % feed

ChargesforReimbursementLevel1 $300 $ HistoricaldataLevel2 $500 $ HistoricaldataLevel3 $750 $ HistoricaldataLevel4 N/A $ HistoricaldataLevel5 N/A $ Historicaldata

GrossCollectionRate(GCR)Level1 19% % BillingteamLevel2 18% % BillingteamLevel3 15% % BillingteamLevel4 N/A % BillingteamLevel5 N/A % Billingteam

ExistingCasesAverageCensus/Day 30 # HistoricaldataAverage%Censusnotseen 0% % Experience

E&MdistributionSubsequentvisitlevel1 30% % HistoricaldataSubsequentvisitlevel2 40% % HistoricaldataSubsequentvisitlevel3 36% % Historicaldata

ProviderMixSubsequentvisitlevel1

APAlone 0% % HistoricaldataAP+Staff 100% % calc

Subsequentvisitlevel2APAlone 50% % HistoricaldataAP+Staff 50% % calc

Subsequentvisitlevel3APAlone 50% % HistoricaldataAP+Staff 50% % calc

ProviderComplianceLevelwithDocumentationandProviderBilling(PatientKeeper)Subsequentvisitlevel1 80% % feed(assumesamefornewconsults&existingcases)Subsequentvisitlevel2 80% % feedSubsequentvisitlevel3 80% % feed

PercentageBillability2/2GlobalPeriodReductionSubsequentvisitlevel1 100% % MGHanalysis(ouranalysissuggestshighestvolume/revenuegeneratorsarealmostallnotaffectedbyglobalpreiodreduction)Subsequentvisitlevel2 100% % feedSubsequentvisitlevel3 100% % feed

ChargesforReimbursementSubsequentvisitlevel1 $150 $ HistoricaldataSubsequentvisitlevel2 $300 $ HistoricaldataSubsequentvisitlevel3 $450 $ Historicaldata

GrossCollectionRate(GCR)Subsequentvisitlevel1 24% % HistoricaldataSubsequentvisitlevel2 14% % HistoricaldataSubsequentvisitlevel3 10% % Historicaldata

Calculations

CaseVolume&MixNewConsults

Totalnewconsultspermonth 20 # calcLevel1

#ofpatienttouchespermo 6 # calcAPalone 0 # calc

HIGH OPTIMISTIC BASE CAUTIOUS

HIGH OPTIMISTIC BASE CAUTIOUSGlobal 1 2 3 4

20 20 20 203 3 3 3

75% 45% 33% 30%85% 85% 85% 85%67% 67% 67% 67%0% 0% 0% 0%28% 28% 28% 28%

NewPatients4 3 2 1

0% 19% 19% 30%50% 74% 74% 60%50% 7% 7% 10%0% 0% 0% 0%0% 0% 0% 0%

0% 0% 0% 0%100% 100% 100% 100%

80% 60% 40% 40%80% 60% 40% 40%80% 60% 40% 40%80% 60% 40% 40%80% 60% 40% 40%

Increasing%ofpatientsseenbyNPs

ImprovingPKdocumentation

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Maximizing advanced practitioner billing is critical

• Incident to billing– APs see established patients alone and bill under

supervising MD

• Independent billing– APs practice in collaborative environment, but MD

presence not required– AP is billing provider

• Shared visits– Both MD and AP perform significant portions of the visit

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Documentation is key for the success of a clinical practice…

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…as well as understanding global periods

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Agenda

• Clinical IR: A Journey• Revenue opportunity• MGH case study• Conclusions

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An established clinical service with multiple components

• Inpatient service– 1 attending, 2-3 advanced practitioners, 1 fellow– 15-20 followup patients/day– 3-7 new consults/day

• Outpatient service– 5 days a week of outpatient clinic– Each attending has 1 day/week of dedicated outpatient

clinic– 5-10 patients/day

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Growth of both inpatient & outpatient volumesYear-over-year growth 124% (inpatient), 21% (outpatient)

Inpatient E&M Volume(2013-2016)

0123456789

101112

2013 2014 2015 2016

Inde

xed

Volu

me

(y1

= 1

.0)

Outpatient E&M Volume(2011-2014)

0.0

0.5

1.0

1.5

2.0

2011 2012 2013 2014(Annualized)

CAGR124%

CAGR21%

CAGR withoutOnc9%

Oncology

Follow Up

New Patients

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Commensurate growth in procedures…

1.0

1.5

2.0

2010 2011 2012 2013 2014 2015 2016

Total IR Case Volume Case Volume (2010-2016)

CAGR6%

(Annualized)

Inde

xed

Volu

me

(y1

= 1

.0)

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1.0

1.5

2.0

2.5

2011 2012 2013 2014 2015

…especially in interventional oncology

Total IO Case Volume Case Volume (2011-2015)

CAGR19%

Inde

xed

Volu

me

(y1

= 1

.0)

Outpatient E&M Volume

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Results

Estimated Total Annual Charges Estimated Total Annual Revenues

Existing Patients

New Patients Existing Patients

New Patients0

200,000

400,000

600,000

800,000

1,000,000

1,200,000

0

200,000

400,000

600,000

800,000

1,000,000

1,200,000

$992K

$298K

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Our model suggests a broad range of annual revenues from outpatient E&M…

Practice Type: Small Moderate Large Mega

Clinic Days/Week 0.5 2.0 4.0 5.0

Number MDs (FTE) 0.125 0.25 0.50 1.00

Number APCs (FTE) 0.25 0.50 1.00 1.50

New Consults/Day 1 2 4 7

Existing Consults/Day 2 5 8 15

Estimated annual charges $30,999 $284,298 $991,961 $2,260,683

Estimated annual collected revenues $9,300 $85,289 $297,588 $678,205

Scientific Talk, SIR 2016

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…as well as inpatient E&M

Practice Type: Small Moderate Large Mega

Full Billing Days/Week 5 5 5 5

Number MDs (FTE) Variable

Number APCs (FTE) 0.5 1.0 2.0 4.0

New Consults/Day 0.2 0.5 2 3

Existing Consults/Day 5 10 35 50

Estimated annual charges $319,579 $643,761 $2,264,672 $3,241,822

Estimated annual collected revenues $54,766 $110,574 $389,612 $558,075

JVIR 2016

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But what about PROFITS?

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Materials and Methods

Revenues Costs Profit/Loss- =

• E&M Capture• Downstream

imaging• Procedures

• Salary & benefits• Rent & facilities• Overhead (SG&A)

• Did we make money or lose money?

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Materials and Methods

Revenues Costs Profit/Loss=DownstreamImaging+ -

• Radiology practices likely benefit from the need for imaging in IR patients

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ResultsD

olla

rs ($

)

Revenues Costs Profit/(Loss)

DownstreamImaging

TrueProfit

$298K ($396K)

($98K)

~$098K

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Sensitivity analysis

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Agenda

• Clinical IR: A Journey• Revenue opportunity• MGH case study• Conclusions

Page 45: The Value of Clinical Interventional Radiology · The growing use of interventional radiology techniques signals a need to redefine the radiologist’s role in patient management…[we]

Conclusions

• The field of IR has largely successfully transitioned to a “clinical” specialty

• Yet the true financial impact on IR practices is still in its infancy

• There are challenges– Close relationship with finance/billing– Thoughtful deployment of IR FTE resources– Downstream imaging revenue analysis needs to be

incorporated– Significant cultural shift, requires commitment of all team

members

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Acknowledgements

• Jim Brink, MD• Peter Mueller, MD• Alex Misono, MD• Kevin Pian, MBA• Adam Harbaugh• Rob Sheridan

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Thank you

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References• Andrews RT. The financial “halo effect” of an interventional radiology clinic. Paper presented at: Society of Interventional Radiology 32nd Annual Scientific

Meeting; Seattle, Wash; March 1-6, 2007• ACR Radiology Coding Source: Evaluation and Management Services in Interventional Radiology (http://www.acr.org/Advocacy/Economics-Health-

Policy/Billing-Coding/Coding-Source-List/2008/Jan-Feb-2008/Evaluation-and-Management-Services-in-Interventional-Radiology)• ACR. Practice guideline for interventional clinical practice. Reston, Va: American College of Radiology; 2009. ACR–SIR–SNIS–SPR PRACTICE

PARAMETER FOR INTERVENTIONAL CLINICAL PRACTICE AND MANAGEMENT (https://www.acr.org/~/media/0c8928b2a2ee42acb640083c7d3def2f.pdf)

• Brunner MC, Durham JD, Lewis CA, McClenny TE. Strategic initiatives in interventional radiology: the clinical imperative. J Vasc Interv Radiol 2003;14:1099-101.

• Chittle MD, Vanderboom T, Borsody-Lotti J, Ganguli S, Hanley P, Martino J, Mueller P, Penzias A, Saltalamacchia C, Sheridan RM, Hirsch JA. An overview of clinical associate roles in the neurointerventional specialty. J Neurointerv Surg. Epub 2015 Jan 5.

• Dhand S, Rajeswan S, Chrisman H, et al. The economic impact of an interventional radiology clinic on a diagnostic radiology department. Paper presented at: Society of Interventional Radiology 32nd Annual Scientific Meeting; Seattle, Wash; March 1-6, 2007.

• Duszak R Jr. Money and Reputation: Squandered Opportunities of a Clinical IR Service. J Vasc Interv Radiol. 2015 Jul;26(7):963-4.• Duszak R Jr, Borst RF. Clinical services by interventional radiologists: perspectives from Medicare claims over 15 years. J Am Coll Radiol. 2010

Dec;7(12):931-6.• Funaki B. Top 5 reasons why you canʼt blame interventional radiologists for neglecting clinical duties for so long. Semin Intervent Radiol. 2006;23:303–304. • Hirsch JA1, Leslie-Mazwi TM, Barr RM, McGinty G, Nicola GN, Silva E 3rd, Manchikanti L. The Bundled Payments for Care Improvement Initiative. J

Neurointerv Surg. Epub 2015 Mar 31.• Katzen BT, Kaplan JO, Dake MD. Developing an interventional radiology practice in a community hospital: the interventional radiologist as an equal partner in

patient care. Radiology 1989;170:955-8.• Kwan SW, Valji K. Interventional radiologists' involvement in evaluation and management services and association with practice characteristics. J Vasc Interv

Radiol. 2012 Jul;23(7):887-92.• Levin DC, Rao VM, Bree RL, Neiman HL. Turf battles in radiology: how individual radiologists can respond to the challenge. Radiology 1998;209: 330-4.• Levin DC, Rao VM, Bonn J. Turf wars in radiology: the battle for peripheral vascular interventions. J Am Coll Radiol 2005;2:68-71.• Meehan TM, Harvey HB, Duszak R Jr, Meyers PM, McGinty G, Nicola GN, Hirsch JA. Accountable Care Organizations: what they mean for the country and

for neurointerventionalists. J Neurointerv Surg. Epub 2015 May 18.• Murphy TP. Interventional radiology: a call to arms. J Vasc Interv Radiol 1999;10:377-8.• Soares GM. The value of clinical interventional radiology. J Am Coll Radiol. 2011 May;8(5):318-24• White SB, Dybul SL, Patel PJ, Hohenwalter EJ, Hieb RA, Shah SP, Rilling WS, Tutton SM. A Single-Center Experience in Capturing Inpatient Evaluation and

Management for an IR Practice. J Vasc Interv Radiol. 2015 Jul;26(7):958-62.