Jd Stewart Companies PLLC

Public-record details

Address

129 W 7th Ave, Stillwater, OK 74074

Phone

(405) 372-2657

Listed under

Audiologists, Hearing aid fitting & sales, Clinics & practices

NPI

1578903340

NPI status

Active in the NPPES registry

Provider type

Organization (practice, clinic or company)

Registered specialty (self-reported taxonomy)

Audiologist-Hearing Aid Fitter (237600000X)

License number on NPI record

297 (OK)

Authorized official

John Stewart, MS, FAAA, Owner

NPI first issued

Jun 26, 2013

NPI record last updated

Feb 2, 2026

NPI 1578903340 is active in the federal NPPES registry (CMS); license 297 (OK) is listed on the record. Source: NPPES NPI Registry (CMS) (record). Data as of 2026-10-21.

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What these registry facts mean

The NPI (National Provider Identifier) is the federal ID every HIPAA-covered provider uses to bill insurance. This NPI belongs to an organization, so it may cover several clinicians at this location. The specialty is the taxonomy the provider chose when registering; NPPES does not check it. A license number here is what the provider entered — confirm it with the state board before you rely on it. Audiologist-Hearing Aid Fitter is a single NPPES category that covers both audiologists and hearing aid fitters; the credentials and license show which applies.

View NPI 1578903340 in the official registry ↗