Mark Sullivan, RN
NPI 1194931964 · Critical Care Medicine Registered Nurse · Melbourne, FL
Mark Sullivan, RN is a Critical Care Medicine Registered Nurse provider in Melbourne, FL (NPI 1194931964).
Provider details
- NPI number
- 1194931964
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- Yes
- License
- RN9190840 (FL)
Specialties & taxonomies
Nursing 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
- 2007-05-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Sullivan's NPI number?
- Mark Sullivan's National Provider Identifier (NPI) is 1194931964, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Sullivan's specialty?
- Mark Sullivan is listed in the NPPES registry with a primary specialty of Critical Care Medicine Registered Nurse (Nursing Service Providers).
- Where is Mark Sullivan located?
- Mark Sullivan's practice location on file with NPPES is 1350 Hickory St, Melbourne, FL 32901-3278.
- What is Mark Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Mark Sullivan is (321) 434-7000.
- Is Mark Sullivan's NPI active?
- Yes — Mark Sullivan's NPI (1194931964) 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.