NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aleda A. Longwell, MD

Dermatology Physician in Danville, CA · enumerated 2008.

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

National Provider Identifier

1093960643

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Aleda A. Longwell
Credential MD
Sex Female
Practice address 1320 El Capitan Dr, Danville, CA, 94526
Fax (925) 838-4545
Enumeration date Nov 24, 2008
Last updated in NPPES Jul 10, 2025

Taxonomy & licenses

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License A86547 (CA) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License A86547 (CA) 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
BJ276Z Other CA MEDICARE PTAN
CB368 Other CA MEDICARE PTAN

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 1093960643 active?
Yes, as of the latest NPPES snapshot, NPI 1093960643 is active (record last updated 2025-07-10).
How do I verify Aleda Longwell's NPI record?
Cross-check NPI 1093960643 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-10.