Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

John Mark Geiss DO Medical Corporation

Organization Family Medicine Physician · NPI 1588076673

John Mark Geiss DO Medical Corporation provides Family Medicine Physician services 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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