
About Healthcare Provider Data Accuracy

Much has been said about the need for high quality healthcare provider data. Inaccurate provider data can lead to limited access, inefficiencies in business operations, government sanctions, and reduced revenues for both providers and vendors. Almost one-third of physicians, for instance, change affiliations and practice locations every year.
Since late 2007, the three most accurate resources have been:
- The National Plan and Provider Enumeration System (NPPES), managed by the Centers for Medicare and Medicaid Services (CMS), also known as the NPI Registry
- SK&A (now OneKey/IQVIA), a private data provider not focused exclusively on healthcare data
- The American Medical Association (AMA) Masterfile
A study conducted by Mathematica Policy Research and published in the Journal of General Internal Medicine found that the NPPES data was more accurate than the SK&A data, and much more accurate than the AMA Masterfile. CarePrecise distributes the NPPES (commonly pronounced "EN-pez") data, along with additional data merged from the federal PECOS (Provider, Enrollment, Chain and Ownership System - pronounced "PAY-cose") system and other public and private sources.
Over the past six years since that 2015 study, we have seen additional improvements in timely updates to provider records in the NPPES, and further declines in quality elsewhere. One reason the NPPES has become such a useful resource is that, by law, providers are required to update their NPI Registry (NPPES) data within thirty days of any change. It is the only publicly available U.S. provider data resource whose accuracy is protected by federal law. State medical boards also maintain data on providers in connection with their licensing requirements; however, state resources are structured differently one to another, and most are less accurate than the federal system.
Until recently, the industry had observed that many providers were not following the law, sometimes leaving their information unchanged as they moved from one practice location to another; however, that has changed. By 2015 we had begun to see measurable improvement, and now, in 2020, we see the trend continuing, with improved accuracy in the NPPES data. Why is this happening?
Put simply, the law and the profits. Though not necessarily in that order.
Besides the fact that U.S. federal law requires providers to keep their data up-to-date – the federal NPI Final Rule states "Covered health care providers must communicate to the NPS any changes in their required data elements within 30 days of the change" – there are financial incentives to do so. There is substantial evidence that health insurance plans may "throttle" claims payments by using discrepancies between data submitted on a claim and the provider's NPI information to delay payments. This can drive up the number of days a claim languishes in receivables, slowing reimbursement. Providers are becoming more savvy about such techniques, and are keeping their NPI data up-to-date. Note that those "required data elements" include name, credentials, practice address, practice phone number, specialties (taxonomy codes), license – key data for public health applications, insurance reimbursements, and marketing.
Furthermore, payers and Medicaid programs are more strictly enforcing taxonomy code* requirements on claims, with newly-implemented or newly-enforced mandates requiring the 10-character alphanumeric taxonomy codes on all professional and institutional claims to properly identify provider types and specialties. Payers may require the taxonomies reported on claims to match those on the provider's NPI record, a further incentive for providers to keep their records current.
Another factor is the migration of providers to larger practice organizations, and away from small practices and solo practices. Larger organizations maintain personnel dedicated to keeping individuals' critical records up to date. Increasingly, professional credentials management relieves the practitioner of the burden of updating NPI and other critical repositories. As credentialing managers know, and rank-and-file practitioners are learning, the penalty for having false information on your NPI record could be severe:
"18 U.S.C. 1001 authorizes criminal penalties against an individual who in any matter within the jurisdiction of any department or agency of the United States knowingly or willfully falsifies, conceals, or covers up by any trick, scheme or device a material fact, or makes any false, fictitious or fraudulent statements or representations, or makes any false writing or document knowing the same to contain any false, fictitious or fraudulent statement or entry. Individual offenders are subject to fines of up to $250,000 and imprisonment for up to five years. Offenders that are organizations are subject to fines of up to $500,000. 18 U.S.C. 3571(d) also authorizes fines of up to twice the gross gain derived by the offender if it is greater than the amount specifically authorized by the sentencing."
"Penalties for Falsifying Information" section of the U.S. Department of Health and Human Services' NPI registration information publication.
To date, only a handful of actions have been taken against providers based on stale data, but the law is the law, and as accuracy becomes more and more critical given the growing reliance on records technology, teeth may be shown at any time.
Importantly, the SK&A (now IQVIA) data is not complete; that is, it does not include all U.S. HIPAA-covered healthcare providers. And notably, neither does the AMA Masterfile, which permits physicians to opt out, and includes essentially only physicians and students in medical training to become physicians. CarePrecise provider data contains all of the NPPES provider records. Both the SK&A data and the Masterfile are much more expensive than CarePrecise data packages; the Masterfile is as much as two orders of magnitude more expensive than the CarePrecise Access Complete database, and licensing it for use in applications and redistribution is extremely costly, whereas CarePrecise redistribution licensing plans are exceptionally affordable, even for startups.
The previously cited accuracy study placed phone calls to a sample of physicians that were found in the three data sets: NPPES, SK&A, and AMA Masterfile. It found that:
Overall, SK&A [now IQVIA] (85 %) and the NPPES (86 %) had the highest rates of correct address information among our confirmed cases, whereas the AMA Masterfile included correct contact information for less than half of the physicians we were able to confirm (42 %). In the NPPES, the proportion of physicians by specialty with correct information was highest in general internal medicine (94 %) and lowest for radiology (72 %). For SK&A, percentages were highest for cardiology (92 %) and family medicine (91 %), and lowest for radiology (80 %) [and] internal medicine (79 %). In the AMA Masterfile, confirmation of contact information was lowest in radiology (32 %) and highest in family medicine (54 %).
The study contrasted CarePrecise's primary source data with the AMA Masterfile, finding that, compared to the NPPES, the AMA Masterfile contains some additional information on providers, while including fewer physicians due to the opt-out option offered by the AMA. While CarePrecise starts with the NPPES data, additional data is merged in from sources such as the federal Provider Enrollment, Chain, and Ownership System (PECOS) and from millions of Medicare claims, including much of what the study cited was missing from the NPPES, such as medical schools attended and graduation date, and number of years in practice, as well as sanction information from the List of Excluded Individuals and Entities (LEIE) database managed by the CMS Office of Inspector General.
CarePrecise enriches the data it aggregates by cross-linking it across multiple government datasets, acquiring the most current and accurate information per provider, and normalizing mistyped information in critical fields.
The CarePrecise Master Bundle now contains more information than the AMA Masterfile and SK&A, including practice affiliations and hospital affiliations, PAC ID, Medicare enrollment ID, graduation year, estimated years in practice, and group size. Additional information is available in CarePrecise's Authoritative Hospital Database (AHD) and Authoritative Physician Database (APD), including health system affiliation, procedure volumes, staffing levels, and patients served. CarePrecise Platinum and the CarePrecise Gold packages include econometric data and Zip5 geo-coding (with per-address geocoding available separately). Overall, CarePrecise data packages are far less costly, and more comprehensive.
CarePrecise also adds email addresses, which are available as custom extractions, permitting buyers to identify specific criteria, such as geographic location, practice description (by taxonomy code), etc.
Most CarePrecise data packages include the exclusive CoLoCode™ – a hyper-conformed version of the practice location data used to group providers working together at any given practice location, and to link Type 1 (individuals) to their Type 2 (business) records.
By 2021, six years since the study, work environments and financial incentives had made a positive impact on healthcare provider data quality in the NPPES. By 2026, accuracy in CarePrecise datasets has benefitted significantly from these factors also and from its own proprietary crossmatching and data normalization.
Determining accuracy in a dataset requires more than making phone calls to check a random sample. For instance, to determine how many practice addresses are correct requires some "buffering" of the source data to protect against organic inconsistencies. For instance, if the goal is to arrive at an accuracy percentage for all U.S. clinics, one might want to eliminate mobile clinics, as their reported practice addresses will likely be the address of a parent clinic, not the mobile clinic's spot in a parking lot. If the goal is to determine accuracy of physician practice locations, it would be prudent to first remove locum tenens physicians, whose organic practice is to move around, never having a permanent location. Such physicians' federal records - perhaps 7% to 8% of U.S. physician Type 1 records - will, statistically, bear a weak relationship with their true practice location at any given time. In such a case, it would be prudent to remove locum tenens physicians (or nurses, or whichever provider taxonomies are under study) before testing. The trouble is, this is very hard to do, as there is no indicator in the datasets for locums. Therefore, a relatively large sample needs to be extracted, and the outcome adjusted by the percentages just mentioned. If a large sample of physicians comes back with 85% accuracy, and you back out the locums, you might understand the actual accuracy to be closer to 93%.
Many other factors need to be taken into consideration in expressing accuracy as a number. The presence of dead records is difficult to remedy; practitioners may have died and the families do not know to update the federal record and CMS hasn't caught it yet. Practitioners may work at several locations on rotation and the federal record lists only one, and so on.
Accuracy of provider email addresses is an ongoing concern for the industry. Whether email is needed by healthcare organizations for recruitment programs, by health plans for expanding their provider networks, pharmaceutical manufacturers communicating scientific data with prescribers and pharmacists, or vendors seeking to reach providers with information on new devices or treatments, the instant communication offered by the email inbox is crucial to keeping the healthcare industry moving forward. Besides frequent reverification, much can be done to assure deliverability. To start with, the source of the email addresses is critical; the government sources that offer other provider data do not include email addresses, with some small exceptions. The best sources are medical societies, journals, conferences, training and continuing education programs, where the practitioner has granted permission for sharing of their email address. CP Preferred Email works with these resources, and then repeatedly rechecks to remove inboxes that have stopped responding, or have otherwise proven unproductive or problematic. CarePrecise's email quality assurance method is unique, in that a number of larger email customers report back with their bounce reports, so that real-world results can be included in deliverability metrics. CP Preferred Email stands out among other commercial email resources because of the company's expertise in the healthcare provider data field, its ability to marry email data with comprehensive provider information from government and private sources, and its proprietary deliverability measures.
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* Taxonomy Codes: Changes in the taxonomy code set, which identify a provider's specialty or facility type, typically occur twice per year. The National Uniform Claim Committee (NUCC) curates the official Provider Taxonomy code set, updating it as needed, typically effective April 1 and October 1 if changes have been made. Providers are required to report accurate taxonomy codes on their NPI record, and may report as many as fifteen taxonomies per NPI record. Organizations, which may have multiple Type 2 NPI records, may report different taxonomies on different records, each having a different NPI number. Individuals may have only one (Type 1) NPI number. CarePrecise data, in addition to group and hospital affiliation linkages, deeply mined fax numbers, and other proprietary enrichments, includes the full NPI records for each provider, including all of their reported taxonomy codes. Provider counts per taxonomy code are listed on the CarePrecise Provider Counts pages by taxonomy and state.
Additional Resources
Updating your NPI Number Record