William Howell
NPI 1659902716 · Addiction (Substance Use Disorder) Counselor · Madison, WI
William Howell is a Addiction (Substance Use Disorder) Counselor provider in Madison, WI (NPI 1659902716).
Provider details
- NPI number
- 1659902716
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 19089-130 (WI)
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
6 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
- 2020-01-28
- Last updated
- 2020-01-28
- Certified
- 2020-01-28
Frequently asked questions
- What is William Howell's NPI number?
- William Howell's National Provider Identifier (NPI) is 1659902716, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Howell's specialty?
- William Howell is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Howell located?
- William Howell's practice location on file with NPPES is 5005 University Ave Ste 100, Madison, WI 53705-5400.
- What is William Howell's phone number?
- The practice phone number listed in the NPPES registry for William Howell is (608) 233-2100.
- Is William Howell's NPI active?
- Yes — William Howell's NPI (1659902716) is active in the NPPES registry as of the last update on 2020-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.