Steven Chao, M.D., PH.D.
NPI 1770625667 · Neurology Physician · Palo Alto, CA
Enrolled with Medicare as Order and Referring Only - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Chao, M.D., PH.D. is a Neurology Physician provider in Palo Alto, CA (NPI 1770625667).
Provider details
- NPI number
- 1770625667
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A88546 (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
19 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
- 2007-02-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Steven Chao's NPI number?
- Steven Chao's National Provider Identifier (NPI) is 1770625667, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Chao's specialty?
- Steven Chao is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Chao located?
- Steven Chao's practice location on file with NPPES is 300 Pasteur Dr, Palo Alto, CA 94305-2200.
- What is Steven Chao's phone number?
- The practice phone number listed in the NPPES registry for Steven Chao is (650) 725-6688.
- Does Steven Chao accept Medicare?
- Steven Chao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Chao's NPI active?
- Yes — Steven Chao's NPI (1770625667) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.