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

Dr. John Mark Geiss, DO

Individual provider Family Medicine Physician · NPI 1053651497

Dr. John Mark Geiss, DO is an Osteopathic Manipulative Medicine in Santa Ana, California. Qualified in 2011, 15 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
15
Licensed in
CA
In the registry since
2013
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

5 Hutton Centre Dr Ste 950
Santa Ana, CA 92707-8744
Phone: (855) 434-7763
Fax: (949) 281-5550
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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 number1053651497
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedFebruary 21, 2013
Last updated in NPPESSeptember 20, 2025
Certification dateSeptember 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOSTEOPATHIC MANIPULATIVE MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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