Diane Marshall, MMFT
NPI 1255540266 · Marriage & Family Therapist · Franklin, TN
Diane Marshall, MMFT is a Marriage & Family Therapist provider in Franklin, TN (NPI 1255540266).
Provider details
- NPI number
- 1255540266
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MMFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- 705 (TN)
Specialties & taxonomies
Behavioral Health & Social 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
- 2007-05-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Diane Marshall's NPI number?
- Diane Marshall's National Provider Identifier (NPI) is 1255540266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Marshall's specialty?
- Diane Marshall is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Diane Marshall located?
- Diane Marshall's practice location on file with NPPES is 114 Old Liberty Pike, Franklin, TN 37064-2239.
- What is Diane Marshall's phone number?
- The practice phone number listed in the NPPES registry for Diane Marshall is (615) 566-2305.
- Is Diane Marshall's NPI active?
- Yes — Diane Marshall's NPI (1255540266) 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.