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Sierra Housecalls Medical Group

Geriatric Medicine (Family Medicine) Physician in Sonora, CA · enumerated 2006 · authorized official Matthew Personius, Owner/President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801827555

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Registry record

Entity type Organization (Type 2)
Legal business name Sierra Housecalls Medical Group
Practice address 183 Fairview Ln, Suite C, Sonora, CA, 95370
Phone (209) 532-4287
Enumeration date Jul 5, 2006
Last updated in NPPES Apr 11, 2008

Taxonomy & classification

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Primary
364SG0600X Gerontology Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Matthew Personius
Title Owner/President
Phone (209) 532-4287

Other identifiers

Identifier Type State Issuer
DA1747 Other CA MEDICARE RAILROAD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Sierra Housecalls Medical Group?
NPPES lists Matthew Personius (Owner/President) as the authorized official for this organization.
What is the NPI number for Sierra Housecalls Medical Group?
The NPI for Sierra Housecalls Medical Group is 1801827555, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-11.