IndividualActive
Tammy Holloway, RN
NPI 1114573839 · Administrator Registered Nurse · Columbia, MD
Tammy Holloway, RN is a Administrator Registered Nurse provider in Columbia, MD (NPI 1114573839).
Provider details
- NPI number
- 1114573839
- Entity type
- Individual
- Primary specialty
- Administrator Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- RN9272183 (FL)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
10440 Little Patuxent Pkwy Ste 800
Columbia, MD 21044-3569
Phone: (727) 460-9397
Fax: (443) 276-6494
Street-level locationGet directions
Mailing address
10440 Little Patuxent Pkwy Ste 800
Columbia, MD 21044-3569
Registry dates
- Enumerated
- 2019-08-19
- Last updated
- 2019-08-19
Frequently asked questions
- What is Tammy Holloway's NPI number?
- Tammy Holloway's National Provider Identifier (NPI) is 1114573839, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Holloway's specialty?
- Tammy Holloway is listed in the NPPES registry with a primary specialty of Administrator Registered Nurse (Nursing Service Providers).
- Where is Tammy Holloway located?
- Tammy Holloway's practice location on file with NPPES is 10440 Little Patuxent Pkwy Ste 800, Columbia, MD 21044-3569.
- What is Tammy Holloway's phone number?
- The practice phone number listed in the NPPES registry for Tammy Holloway is (727) 460-9397.
- Is Tammy Holloway's NPI active?
- Yes — Tammy Holloway's NPI (1114573839) is active in the NPPES registry as of the last update on 2019-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.