Robert Willis, R.R.W.
NPI 1497966881 · Addiction (Substance Use Disorder) Counselor · Tarzana, CA
Robert Willis, R.R.W. is a Addiction (Substance Use Disorder) Counselor provider in Tarzana, CA (NPI 1497966881).
Provider details
- NPI number
- 1497966881
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- R.R.W.
- Sex
- Male
- Sole proprietor
- No
- License
- RW0303 (CA)
Specialties & taxonomies
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
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
- 2007-05-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Willis's NPI number?
- Robert Willis's National Provider Identifier (NPI) is 1497966881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Willis's specialty?
- Robert Willis is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Robert Willis located?
- Robert Willis's practice location on file with NPPES is 19100 Ventura Blvd, Tarzana, CA 91356-3239.
- What is Robert Willis's phone number?
- The practice phone number listed in the NPPES registry for Robert Willis is (818) 654-2577.
- Is Robert Willis's NPI active?
- Yes — Robert Willis's NPI (1497966881) 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.