Marie Ludwig
NPI 1609208339 · Addiction (Substance Use Disorder) Counselor · Napa, CA
Marie Ludwig is a Addiction (Substance Use Disorder) Counselor provider in Napa, CA (NPI 1609208339).
Provider details
- NPI number
- 1609208339
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
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
12 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
- 2013-08-05
- Last updated
- 2013-08-05
Frequently asked questions
- What is Marie Ludwig's NPI number?
- Marie Ludwig's National Provider Identifier (NPI) is 1609208339, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marie Ludwig's specialty?
- Marie Ludwig is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Marie Ludwig located?
- Marie Ludwig's practice location on file with NPPES is 2310 1st St, Napa, CA 94559-2239.
- What is Marie Ludwig's phone number?
- The practice phone number listed in the NPPES registry for Marie Ludwig is (707) 255-1855.
- Is Marie Ludwig's NPI active?
- Yes — Marie Ludwig's NPI (1609208339) is active in the NPPES registry as of the last update on 2013-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.