Mark Ellis
NPI 1336204171 · General Care Certified Respiratory Therapist · Hagerstown, MD
Mark Ellis is a General Care Certified Respiratory Therapist provider in Hagerstown, MD (NPI 1336204171).
Provider details
- NPI number
- 1336204171
- Entity type
- Individual
- Primary specialty
- General Care Certified Respiratory TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- YM005079L (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
19 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
- 2006-12-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Ellis's NPI number?
- Mark Ellis's National Provider Identifier (NPI) is 1336204171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ellis's specialty?
- Mark Ellis is listed in the NPPES registry with a primary specialty of General Care Certified Respiratory Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mark Ellis located?
- Mark Ellis's practice location on file with NPPES is 1101 Jefferson Blvd, Hagerstown, MD 21742-5037.
- What is Mark Ellis's phone number?
- The practice phone number listed in the NPPES registry for Mark Ellis is (301) 714-0200.
- Is Mark Ellis's NPI active?
- Yes — Mark Ellis's NPI (1336204171) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.