Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

David Trefry

Individual provider Hearing Instrument Specialist · NPI 1730315557

David Trefry is a Hearing Instrument Specialist in Oceanside, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009

Practice location Address checks out

4171 Oceanside Blvd Ste 108
Oceanside, CA 92056-6023
Phone: (760) 940-5237
Fax: (760) 940-5265
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hearing Instrument Specialist (primary) Taxonomy 237700000X · Licence HA7522 (CA)

Record details

NPI number1730315557
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 8, 2009
Last updated in NPPESApril 4, 2017
Mailing address4171 Oceanside Blvd, Ste 108, Oceanside, CA 92056-6023

Other providers in Oceanside