Mark Messerer, SUDCC
NPI 1790841682 · Addiction (Substance Use Disorder) Counselor · Martinez, CA
Mark Messerer, SUDCC is a Addiction (Substance Use Disorder) Counselor provider in Martinez, CA (NPI 1790841682).
Provider details
- NPI number
- 1790841682
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- SUDCC
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
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
- 2006-12-28
- Last updated
- 2023-03-27
- Certified
- 2023-03-27
Frequently asked questions
- What is Mark Messerer's NPI number?
- Mark Messerer's National Provider Identifier (NPI) is 1790841682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Messerer's specialty?
- Mark Messerer is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Messerer located?
- Mark Messerer's practice location on file with NPPES is 1220 Morello Ave, Martinez, CA 94553-4707.
- What is Mark Messerer's phone number?
- The practice phone number listed in the NPPES registry for Mark Messerer is (925) 335-3330.
- Is Mark Messerer's NPI active?
- Yes — Mark Messerer's NPI (1790841682) is active in the NPPES registry as of the last update on 2023-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.