Dr. William Leo Gardner, DDS
Dr. William Leo Gardner is a General Practice Dentistry provider (Dentist) practicing in Alameda, CA, registered in the NPPES registry with NPI 1093928798 since 2007. The credential DDS stands for Doctor of Dental Surgery. Practices at P L Gardner MD S D Cohen MD and D P Bui MD (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1093928798 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. William Leo Gardner |
| Credential | DDS |
| Sex | Male |
| Practice address | Alameda, CA, 94501 |
| Phone | 5108654400 |
| Fax | 5108654417 |
| Enumeration date | 2007-05-08 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | 37668 | CA |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: William Gardner, DDS NPI: 1093928798 Taxonomy: 1223G0001X (General Practice Dentistry) Address: Alameda, CA, 94501
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1104977636 | David Bui | Individual | Ophthalmology Physician | Alameda, CA |
| 1235282252 | Philip Gardner | Individual | Ophthalmology Physician | Alameda, CA |
| 1093857864 | Michael Glazeski | Individual | Corneal and Contact Management Optometrist | Alameda, CA |
| 1669508990 | P L Gardner MD S D Cohen MD and D P Bui MD | Organization | Ophthalmology Physician | Alameda, CA |
| 1992831887 | Debra Steiner | Individual | Clinical Social Worker | Alameda, CA |
| 1073731782 | Juliann Lyons | Individual | Acupuncturist | Alameda, CA |
| 1518384684 | Eugene Lowry | Individual | Glaucoma Specialist (Ophthalmology) Physician | Alameda, CA |
Verify this record
Cross-check NPI 1093928798 against the authoritative CMS record: view Dr. William Leo Gardner on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
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Where does William Gardner practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.