Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Helen Elizabeth Watt, M.D.

Surgery Physician in Scottsdale, AZ · enumerated 2007.

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

National Provider Identifier

1578619490

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Registry record

Entity type Individual (Type 1)

Name Helen Elizabeth Watt

Credential M.D.

Sex Female

Practice address Scottsdale, AZ, 85251

Phone (480) 368-9608

Fax (480) 686-9007

Enumeration date Jan 25, 2007

Last updated in NPPES Dec 20, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133N00000X Nutritionist Dietary & Nutritional Service Providers · License 22016 (AZ) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 22016 (AZ) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 22016 (AZ) Primary

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

Other identifiers

Identifier	Type	State	Issuer
158619	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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Helen Watt's NPI record?

Cross-check NPI 1578619490 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578619490 active?

Yes, as of the latest NPPES snapshot, NPI 1578619490 is active (record last updated 2018-12-20).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-20.