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8/19/2019 Effective Demand Forecasting in the Healthcare Supply Chain
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Effective Demand Forecasting In the Health
Care Supply Chain
By Timothy J. Callahan
David R. u!man" #$ens % &inor" Inc.
&ar' (. )an Sumeren" #$ens % &inor" Inc. July 16, 2004
The road to automated replenishment is not an easy one. However, through the integration of
intelligene, tehnology, and e!pertise, effetive demand foreasting in the health are supplyhain is attaina"le.
#nvision a senario in whih pressing the #nter $ey on a hospital omputer sets into motion a series of oordinated proesses that reahes aross the entire
health are supply hain % from the manufaturing plant, through transportationand distri"ution networ$s, to the patient %s "edside.
Through a areful integration of the hospital system %s diverse data, inluding
information aptured from linial, finanial, and operational soures, the
simple at of sheduling a routine medial proedure would ativate an automatedsystem that&
• 'hooses produts for the patient standardi(ed to the )*'+- proedure odes
• /ssesses the need for "a$up ontingeny supplies and produt options "ased
on physiian produt preferene and historial data
• i$s the supplies appropriate for that individual ase, and groups those
supplies with all other supplies needed for prep, reovery, and follow+up
• erifies the latest ontrat prie and ensures synhroni(ed priing auray
among all supply hain sta$eholders
• etermines whether there is a need to replenish supplies either at on+site
sto$ loations or in the off+site warehouses of a distri"ution partner
• /ggregates the produt replenishment re3uirements and automatially plaes
an order and
• 'ommuniates usage data to the manufaturer and other sta$eholders for prediting
future demand.
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*hat Else+
These proesses may well "e the vision of the future for the health are supplyhain % a world in whih medial and surgial supply purhases are unompromisingly
driven "y the demands of aregivers and their patients, "ut whih also em"raesthe most innovative and effetive onepts of demand foreasting, inventory
postponement, and automated replenishment $eeping supply hain osts under ontrol.*t is a world where tehnology erases the lines of distintion "etween diret
purhases and distri"ution, sending an aggregated purhase order that automatially
selets the most ost+effetive produt om"ination and routing through thesupply hain, and then segregates and delivers the order to the appropriate
reipients.
*t is a world where supply hain performane is measured end to end, analy(ingdown to the 57loation level, dramatially reduing the need for on+hand inventory
for sheduled medial proedures and where health are information not normally
assoiated with the supply hain, suh as aggregate patient data, medial researh,
demographis, and the hospital%s own strategi o"8etives, is integrated toe!tend demand predita"ility into the future.
This Future Is *ithin Reach
Today, there are three fators that ma$e this vision of the future attaina"le&
the a"undane of untapped information already availa"le in the hospital settinga methodology of demand foreasting developed in other industries, "ut whih
an "e adapted to health are and the reent growth and maturation of someinformation tehnologies that ena"le an unpreedented level of integration of
data from diverse soures.
*ntegration of linial data into the supply hain e3uation will revolutioni(e
the management proess, ena"ling us to transform the e!isting yet often segregatedmi! of information into ationa"le intelligene for health are deision ma$ers.
ni3ue and ustomi(ed appliation of some proven priniples of supply hain
management from the retail industry, and some reent tehnologial advanes,
will gain health are supply hain effiienies that we have "een antiipatingfor years. These effiienies, in turn, will open the door to numerous orollary
"enefits suh as improved patient safety, more favora"le linial outomes,
revenue enhanement, and an even more healthful wor$ environment for liniians.
Health Care Is ,ot Retail
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This is not the first time the health are industry has onsidered applying
retail demand foreasting strategies. These onepts are well+proven, and have
"een around sine the late 190s, when health are e!eutives first used themin efforts to standardi(e, manage, and pa$age produt in patient+ready )onsumer-
onfigurations. *n health are, those efforts met with some suess. roponents
found they ould wor$ well to support limited proedures and volume, "ut oftenfailed to over ontingenies liniians fre3uently enounter at the pre+op,
proedural, and reovery phases.
Having inorporated these lessons into the lore of supply hain management,
we ontend that our industry is now ready to develop its own set of priniplesthat draws upon the onepts of retail demand foreasting models, "ut whih
fully aounts for the uni3ue nature of health are % in whih a failure to
meet the demands of onsumers )patients and liniians- an have dire onse3uenes.
/dvanes in tehnology, historial trending, surgial sheduling, and linial
information systems have given us the a"ility to manage usage more effetively.The integration of supply hain management systems with point+of+use data entry,
and improvements in inventory management )suh as the emerging :;* tehnology-,are ena"ling us to lear the way for the final and most important step in the
integration of health system data % lin$ing the linial pathways harted in
advaned patient data to the supply hain deision+ma$ing proess.
-roecting Demand (ccurately Is the /ey
*n the retail industry, one of the most ommon hallenges faing e!eutives
is a la$ of relia"le information for prediting what ustomers will "uy. :etailstores sto$ their shelves "ased on a om"ination of intuition, e!periene,and mar$et researh that is often highly speulative. *t is a ris$y proposition,
espeially for the "uyer responsi"le for filling warehouses that serve thousands
of retail outlets. The proliferation of learane sales at the end of eah "uyingseason attests to the odds for failure.
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shelves may "e su"stantially greater than in almost any other industry % at
least for ertain su"groups of their total annual purhases. =here else "ut
in a hospital an a manager wal$ in and loo$ at a shedule that tells the num"er of ustomers and the potential produt demand with relative auray for that
very day@
To date, efforts to automate the health are industry have "een admira"le.
>ost hospitals now have automated systems in plae to tra$ diagnoses, medialevents, patient satisfation, purhasing, aounts paya"le, reim"ursements,
surgial team preferenes, dispensing of pharmaeutials, and more. nli$e the
retail environment, however, the prinipal hallenge in hospital systems isnot a la$ of relia"le information to support deision ma$ing, "ut rather the
la$ of visi"ility and integration of data that is already there % data that
is routinely gathered "ut stored in diverse information systems that rarelyommuniate with eah other in meaningful ways.
=ith so many data soures, and so many advanes in tehnology and analytialapa"ilities, there ould "e "oundless possi"ilities for a health are institution
apa"le of organi(ing and using its information to gain "usiness and linialadvantages. ltimately, the goal should "e to reate a health are supply hain
that is apa"le of $eeping the liniians supplied, and at the same time, limiting
on+hand inventory to what is neessary to address ontingenies.
#n the Road to (utomated Replenishment
Hospitals are aross the "oard in their level of sophistiation in supply hain
management, ranging from failities% systems that still tra$ physiian prefereneson inde! ards, to systems that are managing the supply hain with advanedmethodologies suh as ativity+"ased osting, *nternet+"ased analysis of purhasing
and utili(ation, and outsouring the management of supply a3uisition in high+dollar
linial units.
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• /ppliation of these new management methods to reate a linially driven
demand hain supported "y low on+hand inventory and automated replenishment
and
• The appliation of this e!panded supply hain intelligene for 3uality improvement
and reim"ursement optimi(ation with the health system.
Figure 1. Potential Sources of Information to Support Effective Demand Forecasting
in a Health Care System
E0panding -roven )alue
#!periene has shown already that integrating and analy(ing the data within
a single management system, suh as hospital purhasing, an reap su"stantial
"enefits. *nternet+"ased mining of routine purhasing data, when properly analy(ed,an produe information that forms the "asis for om"ining purhase orders,
standardi(ing produts, reduing inventory, and improving ontrat ompliane
% all proven strategies for reduing osts. Aot only that, analysis of supplyhain ativities has ena"led the reation of models that more appropriately
determine atual supply osts. *ntegrating supply hain information with a hospital%s
linial, finanial, and human resoures information systems offers an opportunityto analy(e relationships "etween supply utili(ation and other important measures
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li$e la"or osts, reim"ursement levels, and patient outomes. uh analysis
ena"les health are systems to identify the ost of are at the episode level,
deteting variations from the norm "y liniian and proedure. otential "enefitsare immediate, inluding a redution in the need for linial employees to tra$
and manage inventory, and apturing supply onsumption as a part of linial
doumentation.
Forecasting Demand
By integrating linial information systems, the health are system an lin$
utili(ation to outomes and provide more aurate linial doumentation, whih
immediately offers the potential to improve harge apture and redue reim"ursementdenials. The hospital e!eutive, or the hospital%s supply hain partner, has
relia"le information to reate a realisti "ill of materials for proedures
from the preparation phase through reovery and follow+up.
*n speifi loations, suh as the surgial suite, 5+ and loation+speififoreasting tehnology an "e used to synhroni(e surgeon preferene information,
and predit demand "ased on the hospital%s sheduling, patient demographis,
and even seasonal demands % with the onse3uent "enefits of redued inventorylevels in the ?:, lower osts for ase preparation, and improved fill rates
and servie levels. *n many ases, hospitals are li$ely to e!periene inreases
in linial satisfation, produtivity, and patient safety as well.
Beause the ris$s assoiated with health are are unli$e those of any other industry, the 3uality of demand foreasting must "e impea"le. The proess
must&
• ro8et demand "y loation and 5 and address long+term and short+term
needs
• upport the hospital%s "udgeting and planning proess to aount for introdution
and e!pansion of medial7surgial programs and
• /ddress the importane of the ritial lead times that are inherent and
essential in the health are environment.
(utomated Replenishment*n effet, this approah would onvert the onventional medial7surgial supplyhain into a %demand hain,% in whih information from many soures atually
drives the produt flow. ?riginating at the patient%s "edside, the information
flows through the demand hain "a$ to the prodution plant, where relia"ledemand foreasts ena"le manufaturers to ma$e intelligent prodution deisions.
The distri"utor uses the same information to redue oversto$s and produt shortages,
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and "oth the manufaturer and the distri"utor feed supply hain intelligene
"a$ to the hospital in the form of an effiient produt flow.
=hen the a"undane of information in a health are system is properly analy(edand applied to a well+tested demand response model, the ris$s assoiated with
automation an "e redued to an aepta"le level in an environment that mustallow for emergenies, and annot ompromise patient safety. *n this environment,
automated replenishment must also "e impea"le % ensuring appropriate, aurate,and on+time ordering tied diretly to linial demand, and inorporating proesses
to&
• Tra$ and report e!eptions
• etermine proedure+speifi lead times for re+orders and
• Be self+orreting.
Improving 1uality and Enhancing Revenue
#ffetive demand hain management produes tangi"le hanges in the traditional
supply hain % most nota"ly the ost savings from inventory redution and postponement,
"ut there are many additional "enefits from this approah of gathering informationfrom diverse soures within the health are system. The heightened visi"ility
of the demand hain ena"les hospitals to identify opportunities for improving
patient outomes. *t also allows "etter ase doumentation to support revenue
enhanement.
The Demand Chain Continuum
espite many advanes in supply hain management, too muh of the medial and
surgial inventory in health are onsists of slow+moving 5s with a high ris$ of o"solesene, e!piration, damage, or reall. =ith ade3uate safeguards for
proteting patient identity, pressing the #nter $ey to shedule a partiular
medial proedure an generate speifi lists of medial7surgial supplies neessaryfor every stage of a proedure % ta$ing into aount preferenes of the liniian
patient attri"utes suh as age, weight, se!, medial onditions, and allergies
and predita"le e!ternal fators that influene the utili(ation of supplies.
Together, a fine+tuned foreasting system and automated replenishment proessan prepare the hospital for every sheduled proedure, redue the osts for
suh proedures through standardi(ation, and help ensure favora"le outomes.
These systems also an help pro8et the li$elihood of unsheduled ases andune!peted auity issues, and determine the neessary produt mi! for "a$up
and support.
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