Mark Fowlis, CAADE
NPI 1285904326 · Addiction (Substance Use Disorder) Counselor · Rancho Cucamonga, CA
Mark Fowlis, CAADE is a Addiction (Substance Use Disorder) Counselor provider in Rancho Cucamonga, CA (NPI 1285904326).
Provider details
- NPI number
- 1285904326
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CAADE
- Sex
- Male
- Sole proprietor
- No
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
14 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2012-01-06
- Last updated
- 2012-01-06
Frequently asked questions
- What is Mark Fowlis's NPI number?
- Mark Fowlis's National Provider Identifier (NPI) is 1285904326, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fowlis's specialty?
- Mark Fowlis is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Fowlis located?
- Mark Fowlis's practice location on file with NPPES is 11777 Sebastian Way Ste 102, Rancho Cucamonga, CA 91730.
- What is Mark Fowlis's phone number?
- The practice phone number listed in the NPPES registry for Mark Fowlis is (909) 838-0044.
- Is Mark Fowlis's NPI active?
- Yes — Mark Fowlis's NPI (1285904326) is active in the NPPES registry as of the last update on 2012-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.