Douglas Mayo

Douglas Mayo is a Family Nurse Practitioner provider (Nurse Practitioner) practicing in Weldon Spring, MO, registered in the NPPES registry with NPI 1942674254 since 2015.

✓ Active NPI ✓ Valid NPI checksum

NPI	1942674254
Entity type	Individual (Type 1)
Name	Douglas Mayo
Sex	Male
Practice address	1051 WOLFRUM RD, Weldon Spring, MO, 63304
Phone	6363000370
Enumeration date	2015-11-24
Last updated in NPPES	2015-11-24

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
363LF0000X	Family Nurse Practitioner	Primary	2015032884	MO

Copy-ready billing details

Provider: Douglas Mayo
NPI: 1942674254
Taxonomy: 363LF0000X (Family Nurse Practitioner)
Address: 1051 WOLFRUM RD, Weldon Spring, MO, 63304

Verify this record

Cross-check NPI 1942674254 against the authoritative CMS record: view Douglas Mayo on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Douglas Mayo?

Douglas Mayo is registered in NPPES with the primary taxonomy of Family 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-11-24.