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

Jon L Siems MD Inc

Organization Ophthalmologic Surgery Clinic/Center · NPI 1194243394

Jon L Siems MD Inc is an Ophthalmologic Surgery Clinic/Center in Temecula, California. Licensed in California. Registered with an NPI since 2017.

Licensed in
CA
In the registry since
2017
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

31515 Rancho Pueblo Rd Ste 103
Temecula, CA 92592-4837
Phone: (951) 303-6111
Fax: (951) 302-4448
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmologic Surgery Clinic/Center (primary) Taxonomy 261QS0132X · Licence 54383 (CA)

Record details

NPI number1194243394
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mary Porter — Practice Manager · (951) 303-6111
NPI enumeratedSeptember 7, 2017
Last updated in NPPESMarch 7, 2023
Mailing address31515 Rancho Pueblo Rd Ste 103, Temecula, CA 92592-4837