Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen Dyer Blackwell, P.A.
Physician Assistant in O Fallon, IL · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487983664
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Registry record
Entity type Individual (Type 1)
Name Karen Dyer Blackwell
Credential P.A.
Sex Female
Practice address 310 N 7 Hills Rd, O Fallon, IL, 62269
Phone (618) 624-6181
Fax (618) 624-7172
Enumeration date Dec 16, 2009
Last updated in NPPES Feb 22, 2016
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085005182 (IL) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify Karen Blackwell's NPI record?
Cross-check NPI 1487983664 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1487983664 active?
Yes, as of the latest NPPES snapshot, NPI 1487983664 is active (record last updated 2016-02-22).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-22.