NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Alexandra C Walsh, PA-C

Physician Assistant in Baltimore, MD · enumerated 2018.

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

National Provider Identifier

1770091076

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Alexandra C Walsh
Credential PA-C
Sex Female
Practice address 22 S Greene St, Baltimore, MD, 21201
Fax (410) 706-6976
Enumeration date Jan 21, 2018
Last updated in NPPES Dec 17, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 025090 (NY) Secondary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License MA059739 (PA) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License C0009248 (MD) Primary

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 Alexandra Walsh's NPI record?
Cross-check NPI 1770091076 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1770091076 active?
Yes, as of the latest NPPES snapshot, NPI 1770091076 is active (record last updated 2024-12-17).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-17.