Dr. Michael R Knoll, DDS, MD

Dr. Michael R Knoll is a Oral and Maxillofacial Surgery (Dentist) provider (Dentist) practicing in Alameda, CA, registered in the NPPES registry with NPI 1669691200 since 2007. The credential DDS stands for Doctor of Dental Surgery. Practices at W. Tang, D.M.D, Inc. (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1669691200
Entity type	Individual (Type 1)
Name	Dr. Michael R Knoll
Credential	DDS, MD
Sex	Male
Practice address	2242 SANTA CLARA AVE, Alameda, CA, 94501
Phone	5105231862
Fax	5105211595
Enumeration date	2007-04-24
Last updated in NPPES	2015-02-11

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
204E00000X	Oral & Maxillofacial Surgery (D.M.D.)	Secondary	30138	AL
1223S0112X	Oral and Maxillofacial Surgery (Dentist)	Secondary	DN17902	FL
1223S0112X	Oral and Maxillofacial Surgery (Dentist)	Secondary	5224	AL
1223S0112X	Oral and Maxillofacial Surgery (Dentist)	Primary	48487	CA
204E00000X	Oral & Maxillofacial Surgery (D.M.D.)	Secondary	A128233	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: Michael Knoll, DDS, MD
NPI: 1669691200
Taxonomy: 1223S0112X (Oral and Maxillofacial Surgery (Dentist))
Address: 2242 SANTA CLARA AVE, Alameda, CA, 94501

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1053766485	Wei Yu Tang	Individual	Oral and Maxillofacial Surgery (Dentist)	Alameda, CA
1548868581	W. Tang, D.M.D, Inc.	Organization	Oral and Maxillofacial Surgery (Dentist)	Alameda, CA

Verify this record

Cross-check NPI 1669691200 against the authoritative CMS record: view Dr. Michael R Knoll 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

What specialty is Michael Knoll?

Michael Knoll is registered in NPPES with the primary taxonomy of Oral and Maxillofacial Surgery (Dentist). The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-02-11.