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

Dr. Ralph Ascher, MD

Individual provider Allergy & Immunology Physician · NPI 1275543258

Dr. Ralph Ascher, MD is an Allergy & Immunology Physician in San Diego, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

823 Gateway Center Way
San Diego, CA 92102-4541
Phone: (619) 515-2300
Fax: (619) 906-4564
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence G8109 (CA)
Allergy & Immunology Physician Taxonomy 207K00000X · Licence G8109 (CA)

Record details

NPI number1275543258
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2006
Last updated in NPPESOctober 20, 2016

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