Jonathan Sills, PH.D.
NPI 1134454663 · Clinical Psychologist · Palo Alto, CA
Jonathan Sills, PH.D. is a Clinical Psychologist provider in Palo Alto, CA (NPI 1134454663).
Provider details
- NPI number
- 1134454663
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY23051 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Health Psychologist103TH0004X
Behavioral Health & Social Service Providers
- Rehabilitation Psychologist103TR0400X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2009-10-16
- Last updated
- 2009-10-16
Frequently asked questions
- What is Jonathan Sills's NPI number?
- Jonathan Sills's National Provider Identifier (NPI) is 1134454663, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Sills's specialty?
- Jonathan Sills is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Jonathan Sills located?
- Jonathan Sills's practice location on file with NPPES is 3801 Miranda Ave, Palo Alto, CA 94304-1207.
- What is Jonathan Sills's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Sills is (650) 493-5000.
- Is Jonathan Sills's NPI active?
- Yes — Jonathan Sills's NPI (1134454663) is active in the NPPES registry as of the last update on 2009-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.