Zachary A. Warren, MD
Listed as an ENT doctor who lists otolaryngic allergy, with 3 practice addresses in Oxnard, Woodland Hills, and Ventura, California.
Practice locations 3
Southern California Permanente Medical Group
2103 E Gonzales Rd
Oxnard, CA 93036Southern California Permanente Medical Group
5601 De Soto Ave
Woodland Hills, CA 91367Southern California Permanente Medical Group
888 S Hill Rd
Ventura, CA 93003
From the records
- Specialty
- ENT doctor (otolaryngic allergy)
- Records
- Medicare records: Otolaryngology (October 2026). Allergy specialty from the national provider registry.
- Medicare
- Accepts the Medicare-approved amount as payment in full (Medicare assignment), according to CMS’s file. This applies to Original Medicare; Medicare Advantage plans have their own networks. What assignment means
- Medical school
- Graduated 2019; school not named (Medicare records)
- Registry record
- Last updated September 2024
- NPI
- 1669933222 (national provider registry)
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From CMS’s Doctors and Clinicians file (October 2026) and the national provider registry, NPPES (October 2026). Listings are free and in alphabetical order; we don’t rate or recommend doctors. How we list doctors