Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander F Au, M.D.

Plastic Surgery Physician in Trumbull, CT · enumerated 2008 · practices at The Diep Group Ct Pllc.

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

National Provider Identifier

1386821700

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Registry record

Entity type Individual (Type 1)

Name Alexander F Au

Credential M.D.

Sex Male

Practice address 5520 Park Ave Ste Wp-2300, Trumbull, CT, 06611

Phone (203) 200-0828

Enumeration date Jan 28, 2008

Last updated in NPPES Sep 22, 2026

Taxonomy & licenses

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License MD436356 (PA) Secondary

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 25MA09904900 (NJ) Primary

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License CMD20482 (RI) Secondary

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 1027402 (MA) Secondary

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 50165 (CT) Secondary

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

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.

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Frequently asked questions

How do I verify Alexander Au's NPI record?

Cross-check NPI 1386821700 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1386821700 active?

Yes, as of the latest NPPES snapshot, NPI 1386821700 is active (record last updated 2026-09-22).

Other providers at this practice address

Browse all →

Alicia Andaloro Physician Assistant · Trumbull, CT NPI 1316303720 Shelby Blackley Surgical Physician Assistant · Trumbull, CT NPI 1518584259 The Diep Group Ct Pllc Plastic Surgery Physician · Trumbull, CT NPI 1164143566 Allison Mastroianni Physician Assistant · Trumbull, CT NPI 1023858123

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-22.