Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
DR. JOHN MARK GEISS, D.O.
Active Sole ProprietorDR. JOHN MARK GEISS, D.O. is a Family Medicine healthcare provider located in SANTA ANA, California. NPI 1053651497 is currently active in the NPPES registry. Verify at CMS.
Family Medicine · SANTA ANA, CA
Registration Details
- NPI Number
- 1053651497
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Feb 21, 2013 (13.294714681176 yrs)
- Last Updated
- Sep 20, 2025
- License
-
20A12647 (CA)
- Sole Proprietor
- Yes
Practice Information
- Address
-
5 HUTTON CENTRE DR STE 950SANTA ANA, CA, 927078744Browse CA providers · Browse ZIP 92707
- Phone
- 8554347763
- Fax
- 9492815550
- Primary Specialty
-
Family Medicine
207Q00000X
Other Family Medicine Providers in SANTA ANA, CA
| Name | Credential | NPI |
|---|---|---|
| SUSAN A KEISNER | MD | 1417954793 |
| VERONICA WHELAN | MD | 1881695567 |
| DR. PUMIPAK TANTAMJARIK | MD, FAAFP | 1891789566 |
| DR. EMILY SPAHR CAHILL | D.O. | 1346237948 |
| DR. MICHAEL E RAMIREZ | MD | 1871584243 |
| DR. RICARDO L PEREZ | MD | 1326029505 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.