Mark Karolkowski
NPI 1417342775 · Occupational Therapist · Rockville, MD
Mark Karolkowski is a Occupational Therapist provider in Rockville, MD (NPI 1417342775).
Provider details
- NPI number
- 1417342775
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 05099 (MD)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative 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
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
- 2015-04-03
- Last updated
- 2015-04-03
Frequently asked questions
- What is Mark Karolkowski's NPI number?
- Mark Karolkowski's National Provider Identifier (NPI) is 1417342775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Karolkowski's specialty?
- Mark Karolkowski is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mark Karolkowski located?
- Mark Karolkowski's practice location on file with NPPES is 51 Monroe St, Rockville, MD 20850-2421.
- What is Mark Karolkowski's phone number?
- The practice phone number listed in the NPPES registry for Mark Karolkowski is (301) 838-2040.
- Is Mark Karolkowski's NPI active?
- Yes — Mark Karolkowski's NPI (1417342775) is active in the NPPES registry as of the last update on 2015-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.