Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maureen L Welsh, NP

Family Nurse Practitioner in Phoenix, AZ · enumerated 2006.

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

National Provider Identifier

1457311292

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Registry record

Entity type Individual (Type 1)

Name Maureen L Welsh

Credential NP

Sex Female

Practice address 635 East Baseline Road, Phoenix, AZ, 85042

Phone (602) 243-7277

Fax (602) 243-1235

Enumeration date Mar 24, 2006

Last updated in NPPES Dec 21, 2011

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN102405 (AZ) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP1766 (AZ) Primary

163W00000X Registered Nurse Nursing Service Providers · License RN102405 (AZ) Secondary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
936742	Medicaid	AZ	-

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 Maureen Welsh's NPI record?

Cross-check NPI 1457311292 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1457311292 active?

Yes, as of the latest NPPES snapshot, NPI 1457311292 is active (record last updated 2011-12-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-21.