Karen Johnson
NPI 1336537521 · Addiction (Substance Use Disorder) Counselor · Baltimore, MD
Karen Johnson is a Addiction (Substance Use Disorder) Counselor provider in Baltimore, MD (NPI 1336537521).
Provider details
- NPI number
- 1336537521
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
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
11 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
- 2014-12-23
- Last updated
- 2014-12-23
Frequently asked questions
- What is Karen Johnson's NPI number?
- Karen Johnson's National Provider Identifier (NPI) is 1336537521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Johnson's specialty?
- Karen Johnson is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Karen Johnson located?
- Karen Johnson's practice location on file with NPPES is 21 W 25th St, Baltimore, MD 21218-5003.
- What is Karen Johnson's phone number?
- The practice phone number listed in the NPPES registry for Karen Johnson is (410) 366-1717.
- Is Karen Johnson's NPI active?
- Yes — Karen Johnson's NPI (1336537521) is active in the NPPES registry as of the last update on 2014-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.