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Dr. Constantine Dumas, MD, PHD, MPH

Preventive Medicine/Occupational Environmental Medicine Physician in Appleton, WI · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1083640502

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Registry record

Entity type Individual (Type 1)
Name Dr. Constantine Dumas
Credential MD, PHD, MPH
Sex Male
Practice address 2009 S Memorial Dr, Appleton, WI, 54915
Phone (920) 380-4999
Enumeration date Jun 25, 2006
Last updated in NPPES Jun 13, 2008

Taxonomy & licenses

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License 01059571A (IN) Primary
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.

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Frequently asked questions

How do I verify Constantine Dumas's NPI record?
Cross-check NPI 1083640502 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1083640502 active?
Yes, as of the latest NPPES snapshot, NPI 1083640502 is active (record last updated 2008-06-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-13.