IndividualActive
Mark Diddens, LMSW
NPI 1326754151 · Mental Health Counselor · Nashville, TN
Provider details
- NPI number
- 1326754151
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- No
- License
- 14623 (TN)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
Established profile(68/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
2000 Glen Echo Rd Ste 200
Nashville, TN 37215-2898
Phone: (615) 649-8656
Street-level locationGet directions
Mailing address
1803 Broadway Apt 609
Nashville, TN 37203-2767
Additional practice locations (2)
- 631 N Longwood St Ste 103Rockford, IL 61107-4263Phone: (815) 692-5585
- 210 25th Ave N Ste 601Nashville, TN 37203-1631Phone: (815) 541-1741
Registry dates
- Enumerated
- 2023-01-25
- Last updated
- 2023-06-10
- Certified
- 2023-06-10
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.