What is Mary Hsu's NPI number?

Mary Hsu's National Provider Identifier (NPI) is 1851257471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Hsu's specialty?

Mary Hsu is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).

Where is Mary Hsu located?

Mary Hsu's practice location on file with NPPES is 2275 Huntington Dr Unit 518, San Marino, CA 91108-2640.

What is Mary Hsu's phone number?

The practice phone number listed in the NPPES registry for Mary Hsu is (626) 568-8904.

Is Mary Hsu's NPI active?

Yes — Mary Hsu's NPI (1851257471) is active in the NPPES registry as of the last update on 2025-12-27.

IndividualActive

Mary Hsu, DDS

NPI 1851257471 · Dentist · San Marino, CA

Mary Hsu, DDS is a Dentist provider in San Marino, CA (NPI 1851257471).

Provider details

NPI number: 1851257471
Entity type: Individual
Primary specialty: DentistDental Providers
Credential: DDS
Sex: Female
Sole proprietor: Yes
License: DDS33297 (CA)

Specialties & taxonomies

DentistPrimary122300000XLicense DDS33297 (CA)
Dental Providers

Profile Score

Established profile(53/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

2275 Huntington Dr Unit 518

San Marino, CA 91108-2640

Phone: (626) 568-8904

Street-level locationGet directions

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Mailing address