Dia M Welch, APNP

Dia M Welch is a Nurse Practitioner provider (Nurse Practitioner) practicing in Appleton, WI, registered in the NPPES registry with NPI 1669646071 since 2008.

✓ Active NPI ✓ Valid NPI checksum

NPI	1669646071
Entity type	Individual (Type 1)
Name	Dia M Welch
Credential	APNP
Sex	Female
Practice address	2809 N PARK DRIVE LN, Appleton, WI, 54911
Phone	9209963200
Enumeration date	2008-04-16
Last updated in NPPES	2008-04-16

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
363L00000X	Nurse Practitioner	Primary	3388	WI

Copy-ready billing details

Provider: Dia Welch, APNP
NPI: 1669646071
Taxonomy: 363L00000X (Nurse Practitioner)
Address: 2809 N PARK DRIVE LN, Appleton, WI, 54911

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1750324000	Gregory Bautch	Individual	Nurse Practitioner	Appleton, WI
1427084441	Leslie Rogers	Individual	Family Medicine Physician	Appleton, WI
1922035658	John Ganser	Individual	Family Medicine Physician	Appleton, WI
1356378996	Kathleen Mcgill	Individual	Nurse Practitioner	Appleton, WI
1851328264	Kristina Schmitt	Individual	Physician Assistant	Appleton, WI
1962595249	Bridget Huenink	Individual	Nurse Practitioner	Appleton, WI
1851478853	Michelle Lehr	Individual	Nurse Practitioner	Appleton, WI
1649588914	Melissa Miller	Individual	Medical Physician Assistant	Appleton, WI

Verify this record

Cross-check NPI 1669646071 against the authoritative CMS record: view Dia M Welch 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Dia Welch?

Dia Welch is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-04-16.