Mary Hollomon, APN
NPI 1912796343 · Family Nurse Practitioner · Elizabethton, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Hollomon, APN is a Family Nurse Practitioner provider in Elizabethton, TN (NPI 1912796343).
Provider details
- NPI number
- 1912796343
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 37672 (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
1 yr 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
- 2025-05-02
- Last updated
- 2025-05-02
- Certified
- 2025-05-02
Frequently asked questions
- What is Mary Hollomon's NPI number?
- Mary Hollomon's National Provider Identifier (NPI) is 1912796343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Hollomon's specialty?
- Mary Hollomon is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Hollomon located?
- Mary Hollomon's practice location on file with NPPES is 1500 W Elk Ave, Elizabethton, TN 37643-2654.
- What is Mary Hollomon's phone number?
- The practice phone number listed in the NPPES registry for Mary Hollomon is (423) 543-2584.
- Does Mary Hollomon accept Medicare?
- Mary Hollomon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Hollomon's NPI active?
- Yes — Mary Hollomon's NPI (1912796343) is active in the NPPES registry as of the last update on 2025-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.