Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Armstrong, M.D.

Anesthesiology Physician in Greenville, SC · enumerated 2009 · practices at Prisma Health University Medical Group.

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

National Provider Identifier

1255569133

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Registry record

Entity type Individual (Type 1)

Name Alexandra Armstrong

Credential M.D.

Sex Female

Practice address 7 Independence Pt Ste 300, Greenville, SC, 29615

Phone (864) 522-3700

Fax (864) 522-3705

Enumeration date Jun 30, 2009

Last updated in NPPES Oct 8, 2024

Taxonomy & licenses

207LC0200X Critical Care Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 125067227 (IL) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 727406 (TX) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 85024 (SC) 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
1255569133	Medicaid	TX	-

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

Is NPI 1255569133 active?

Yes, as of the latest NPPES snapshot, NPI 1255569133 is active (record last updated 2024-10-08).

How do I verify Alexandra Armstrong's NPI record?

Cross-check NPI 1255569133 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-08.