Frank S.f. Hsu, M.D., a Professional Corporation
NPI 1407122633 · Endocrinology, Diabetes & Metabolism Physician · Hayward, CA
Frank S.f. Hsu, M.D., a Professional Corporation is a Endocrinology, Diabetes & Metabolism Physician organization in Hayward, CA (NPI 1407122633).
Provider details
- NPI number
- 1407122633
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Frank Hsu, President(510) 538-4870
- License
- C39702 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES 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
Mailing address
Registry dates
- Enumerated
- 2012-04-02
- Last updated
- 2012-04-02
Frequently asked questions
- What is Frank S.f. Hsu, M.D., a Professional Corporation's NPI number?
- Frank S.f. Hsu, M.D., a Professional Corporation's National Provider Identifier (NPI) is 1407122633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Frank S.f. Hsu, M.D., a Professional Corporation?
- Frank S.f. Hsu, M.D., a Professional Corporation is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Frank S.f. Hsu, M.D., a Professional Corporation located?
- Frank S.f. Hsu, M.D., a Professional Corporation's practice location on file with NPPES is 21297 Foothill Blvd Ste 102, Hayward, CA 94541-1554.
- What is Frank S.f. Hsu, M.D., a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Frank S.f. Hsu, M.D., a Professional Corporation is (510) 538-4870.
- Who is the authorized official for Frank S.f. Hsu, M.D., a Professional Corporation?
- The authorized official listed on Frank S.f. Hsu, M.D., a Professional Corporation's NPPES record is Frank Hsu, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Frank S.f. Hsu, M.D., a Professional Corporation's NPI active?
- Yes — Frank S.f. Hsu, M.D., a Professional Corporation's NPI (1407122633) is active in the NPPES registry as of the last update on 2012-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.