Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Matthew David Hashimoto, DDS

Orofacial Pain Dentistry in Foster City, CA · enumerated 2011 · practices at Polly Chan DDS Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1336428929

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew David Hashimoto

Credential DDS

Sex Male

Practice address Foster City, CA, 94404

Phone (650) 286-9999

Enumeration date Aug 12, 2011

Last updated in NPPES Jan 11, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223P0300X Periodontics Dental Providers · License 055710 (NY) Secondary

1223X2210X Orofacial Pain Dentistry Dental Providers · License 104810 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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.

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Frequently asked questions

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.

What specialty is Matthew Hashimoto?

Matthew Hashimoto is registered in NPPES with the primary taxonomy of Orofacial Pain Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Polly Chan DDS Inc Dentist · Foster City, CA NPI 1508931247 Katrina Polonsky Dentist · Foster City, CA NPI 1356416002 Tara Tappuni Dentist · Foster City, CA NPI 1811062565 Stephen Mikulic Dentist · Foster City, CA NPI 1821166356 Anne Mathew Dentist · Foster City, CA NPI 1457411480 Robert Verbois Dentist · Foster City, CA NPI 1104970086 Reza Sanjar Dentist · Foster City, CA NPI 1720380710 Catherine Meister Dentist · Foster City, CA NPI 1629357256

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-11.