Holly Massengill, FNP-BC
NPI 1568813194 · Family Nurse Practitioner · Knoxville, TN
Holly Massengill, FNP-BC is a Family Nurse Practitioner provider in Knoxville, TN (NPI 1568813194).
Provider details
- NPI number
- 1568813194
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- APN0000020080 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
- 2016-06-24
- Last updated
- 2016-06-24
Frequently asked questions
- What is Holly Massengill's NPI number?
- Holly Massengill's National Provider Identifier (NPI) is 1568813194, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Massengill's specialty?
- Holly Massengill is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Holly Massengill located?
- Holly Massengill's practice location on file with NPPES is 1104 Merchant Dr, Knoxville, TN 37912-4706.
- What is Holly Massengill's phone number?
- The practice phone number listed in the NPPES registry for Holly Massengill is (865) 357-5377.
- Is Holly Massengill's NPI active?
- Yes — Holly Massengill's NPI (1568813194) is active in the NPPES registry as of the last update on 2016-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.