Stephen Ku, M.D.
NPI 1477846947 · Endocrinology, Diabetes & Metabolism Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Ku, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Stanford, CA (NPI 1477846947).
Provider details
- NPI number
- 1477846947
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A121292 (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
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 3801 Miranda AvePalo Alto, CA 94304-1207Phone: (650) 493-5000
Registry dates
- Enumerated
- 2011-05-17
- Last updated
- 2024-04-25
- Certified
- 2024-04-25
Frequently asked questions
- What is Stephen Ku's NPI number?
- Stephen Ku's National Provider Identifier (NPI) is 1477846947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Ku's specialty?
- Stephen Ku is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Ku located?
- Stephen Ku's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Stephen Ku's phone number?
- The practice phone number listed in the NPPES registry for Stephen Ku is (650) 723-4000.
- Does Stephen Ku accept Medicare?
- Stephen Ku is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Ku's NPI active?
- Yes — Stephen Ku's NPI (1477846947) is active in the NPPES registry as of the last update on 2024-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.