Dr. Constantine Dumas, MD, PHD, MPH

Dr. Constantine Dumas is a Preventive Medicine/Occupational Environmental Medicine Physician provider (Preventive Medicine) practicing in Appleton, WI, registered in the NPPES registry with NPI 1083640502 since 2006. The credential MD stands for Doctor of Medicine.

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NPI	1083640502
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	9203804999
Enumeration date	2006-06-25
Last updated in NPPES	2008-06-13

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
2083P0500X	Preventive Medicine/Occupational Environmental Medicine Physician	Primary	01059571A	IN

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details

Provider: Constantine Dumas, MD, PHD, MPH
NPI: 1083640502
Taxonomy: 2083P0500X (Preventive Medicine/Occupational Environmental Medicine Physician)
Address: 2009 S MEMORIAL DR, Appleton, WI, 54915

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1760549224	Rodney Buchholz	Individual	Other Specialist/Technologist	Appleton, WI
1376600809	Audrey Renier	Individual	Nurse Practitioner	Appleton, WI

Verify this record

Cross-check NPI 1083640502 against the authoritative CMS record: view Dr. Constantine Dumas on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-06-13.