Mark Ryan, RADT-1
NPI 1942719638 · Addiction (Substance Use Disorder) Counselor · Sacramento, CA
Mark Ryan, RADT-1 is a Addiction (Substance Use Disorder) Counselor provider in Sacramento, CA (NPI 1942719638).
Provider details
- NPI number
- 1942719638
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RADT-1
- Sex
- Male
- Sole proprietor
- No
- License
- R1257170717 (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
8 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
- 2017-09-25
- Last updated
- 2017-09-25
Frequently asked questions
- What is Mark Ryan's NPI number?
- Mark Ryan's National Provider Identifier (NPI) is 1942719638, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ryan's specialty?
- Mark Ryan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Ryan located?
- Mark Ryan's practice location on file with NPPES is 3800 Power Inn Rd, Sacramento, CA 95826-4333.
- What is Mark Ryan's phone number?
- The practice phone number listed in the NPPES registry for Mark Ryan is (916) 450-0700.
- Is Mark Ryan's NPI active?
- Yes — Mark Ryan's NPI (1942719638) is active in the NPPES registry as of the last update on 2017-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.