Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marshall M. Poor, M.D.
Specialist in Bloomington, IN · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164405643
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Registry record
Entity type Individual (Type 1)
Name Marshall M. Poor
Credential M.D.
Sex Male
Practice address 700 S College Ave, Suite A, Bloomington, IN, 47403
Phone (812) 331-8168
Fax (812) 331-1096
Enumeration date Nov 29, 2005
Last updated in NPPES Jun 14, 2026
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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
Is NPI 1164405643 active?
Yes, as of the latest NPPES snapshot, NPI 1164405643 is active (record last updated 2026-06-14).
How do I verify Marshall Poor's NPI record?
Cross-check NPI 1164405643 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-14.