1. Home
  2. Directory
  3. California
  4. Merced
  5. Dentist
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. OTTO WALTER GEISSLER III D.D.S.
NPI 1730150442
Dentist in Merced, CA

Active since January 30, 2006
1132 OLIVEWOOD DR, MERCED, CA 95348(209) 722-2435(209) 722-7671 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Otto Walter Geissler Iii D.d.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. OTTO WALTER GEISSLER III D.D.S. (NPI 1730150442) is an individual dentist in Merced, California, licensed in California (18834) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1730150442
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameDR. OTTO WALTER GEISSLER IIICredential: D.D.S.
Location Address1132 OLIVEWOOD DRMerced, CA 95348-1210
Mailing Address1132 Olivewood DrMerced, CA 95348-1210 · (209) 722-2435 · Fax (209) 722-7671
Phone(209) 722-2435
Fax(209) 722-7671
Sole ProprietorNo
Enumeration DateJanuary 30, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1730150442 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in CA · 18834
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
1132 OLIVEWOOD DR, Merced, CA 95348
Open in Google Maps ↗

Other Identifiers 1

MedicaidB18834-01CA

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ROMAN KRISTOPHER ANDERSON DDS
Dentist (General Practice)
1132 OLIVEWOOD DR
MERCED, CA 95348
Merced County (209) 722-3961
SYLVANIA YU DDS MERCED, INC
Dentist (General Practice)
1132 OLIVEWOOD DR
MERCED, CA 95348
Merced County (209) 722-2435
OTTO W. GEISSLER, D.D.S., INC.
Dentist
1132 OLIVEWOOD DR
MERCED, CA 95348
Merced County (209) 722-2435

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Otto Geissler's NPI number?

The NPI number for Otto Geissler is 1730150442. It was assigned to this individual provider in the NPPES registry on January 30, 2006.

Where is Otto Geissler located?

Otto Geissler practices at 1132 Olivewood Dr, Merced, CA 95348. The listed phone number is (209) 722-2435.

What is Otto Geissler's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

When was this NPI record last updated?

The NPPES record for Otto Geissler was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.