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

Katharine Sue Nelson, MD

Individual provider Allergy & Immunology Physician · NPI 1497921811

Katharine Sue Nelson, MD is an Allergy/Immunology in San Jose, California. Graduated from University of Wisconsin School of Medicine in 2005, 21 years ago. Practices with South Bay Allergy and Asthma Group Inc, a 4-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
21
Trained at
University of Wisconsin School of Medicine
Licensed in
CA
In the registry since
2008
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

130 Bellerose Dr
San Jose, CA 95128-1729
Phone: (408) 286-1707
Fax: (408) 286-1744
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence A108809 (CA)

Record details

NPI number1497921811
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 6, 2008
Last updated in NPPESJune 19, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice South Bay Allergy And Asthma Group Inc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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