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

Larry C Hsu, MD & L. Gretchen Wooding MD, Inc

Organization Allergy & Immunology Physician · NPI 1760694798

Larry C Hsu, MD & L. Gretchen Wooding MD, Inc is an Allergy & Immunology Physician in Chico, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
Specialties on file
2
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

254 Cohasset Rd Ste 10
Chico, CA 95926-2210
Phone: (530) 893-9244
Fax: (530) 893-1249
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G36314 (CA)
Allergy & Immunology Physician Taxonomy 207K00000X · Licence G36360 (CA)

Record details

NPI number1760694798
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Larry Hsu — Owner · (530) 893-9244
NPI enumeratedMay 3, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address254 Cohasset Rd Ste 10, Chico, CA 95926-2210

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