Karl Marmaduke, LCPC
NPI 1437564572 · Professional Counselor · Catonsville, MD
Karl Marmaduke, LCPC is a Professional Counselor provider in Catonsville, MD (NPI 1437564572).
Provider details
- NPI number
- 1437564572
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- LCPC
- Sex
- Male
- Sole proprietor
- No
- License
- LC8319 (MD)
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
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1509 16th St NwWashington, DC 20036-1461Phone: (202) 289-1510
Registry dates
- Enumerated
- 2014-06-27
- Last updated
- 2018-03-17
Frequently asked questions
- What is Karl Marmaduke's NPI number?
- Karl Marmaduke's National Provider Identifier (NPI) is 1437564572, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Marmaduke's specialty?
- Karl Marmaduke is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Karl Marmaduke located?
- Karl Marmaduke's practice location on file with NPPES is 500 N Rolling Rd, Catonsville, MD 21228-4134.
- What is Karl Marmaduke's phone number?
- The practice phone number listed in the NPPES registry for Karl Marmaduke is (410) 788-0300.
- Is Karl Marmaduke's NPI active?
- Yes — Karl Marmaduke's NPI (1437564572) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.