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

John Mark Geiss DO Medical Corporation

Organization Family Medicine Physician · NPI 1588076673

John Mark Geiss DO Medical Corporation is a Family Medicine Physician in Orange, California. Licensed in California. Registered with an NPI since 2014.

Licensed in
CA
In the registry since
2014

Practice location Address checks out

2592 N Santiago Blvd
Orange, CA 92867-1862
Phone: (714) 577-2271
Fax: (949) 281-5550
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 20A12647 (CA)

Record details

NPI number1588076673
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Geiss — Owner · (714) 577-2271
NPI enumeratedMay 23, 2014
Last updated in NPPESApril 3, 2019
Mailing address1050 E Yorba Linda Blvd, Suite 104, Placentia, CA 92870-3730

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