Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Otto Walter Geissler III, D.D.S.
Dentist in Merced, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1730150442
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Registry record
Entity type Individual (Type 1)
Name Dr. Otto Walter Geissler III
Credential D.D.S.
Sex Male
Practice address 1132 Olivewood Dr, Merced, CA, 95348
Phone (209) 722-2435
Fax (209) 722-7671
Enumeration date Jan 30, 2006
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| B18834-01 | Medicaid | CA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify Otto Geissler's NPI record?
Cross-check NPI 1730150442 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1730150442 active?
Yes, as of the latest NPPES snapshot, NPI 1730150442 is active (record last updated 2007-07-09).
Other providers at this practice address
Browse all → Otto W. Geissler, D.D.S., Inc. Dentist · Merced, CA NPI 1588864664 Sylvania Yu DDS Merced, Inc General Practice Dentistry · Merced, CA NPI 1467011080 Miller Skinner Dental Corporation of North Merced General Practice Dentistry · Merced, CA NPI 1376220632 Roman Anderson General Practice Dentistry · Merced, CA NPI 1205613239
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.