Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary Beth Stack, NURSE PRACTITIONER

Nurse Practitioner in Charlottesville, VA · enumerated 2006.

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

National Provider Identifier

1437234770

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary Beth Stack

Credential NURSE PRACTITIONER

Sex Female

Practice address 2955 Ivy Rd, Suite 201 University of Virginia Health System Northrid, Charlottesville, VA, 22903

Phone (434) 243-4531

Fax (434) 243-4717

Enumeration date Oct 26, 2006

Last updated in NPPES Jan 6, 2015

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 0001096552 (VA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024096552 (VA) Primary

Other identifiers

Identifier	Type	State	Issuer
C07038	Other	-	CMS GROUP
500029674	Other	-	RAILROAD

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

What specialty is Mary Stack?

Mary Stack 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-06.