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MARK DIDDENS LMSW
NPI 1326754151
Counselor - Mental Health in Nashville, TN

Active since January 25, 2023
2000 GLEN ECHO RD STE 200, NASHVILLE, TN 37215(615) 649-8656 Get Directions Write a Review

NPPES record last updated: June 10, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 10, 2023, Apr 16, 2023, Jan 25, 2023 (3 updates tracked since 2023).

About Mark Diddens Lmsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK DIDDENS LMSW (NPI 1326754151) is an individual mental health provider in Nashville, Tennessee, licensed in Illinois (150.110236) and active in the NPI registry since January 2023. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1326754151
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameMARK DIDDENSCredential: LMSW
Location Address2000 GLEN ECHO RD STE 200Nashville, TN 37215-2898
Mailing Address1803 Broadway Apt 609Nashville, TN 37203-2767 · (815) 541-1741
Phone(615) 649-8656
Sole ProprietorNo
Enumeration DateJanuary 25, 2023
Last NPPES UpdateJune 10, 20233 updates tracked since enumeration
NPPES CertifiedJune 10, 2023
✔ NPI 1326754151 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
Licenses✔ Licensed in IL · 150.110236✔ Licensed in TN · 14623
2000 GLEN ECHO RD STE 200, Nashville, TN 37215
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1210 25th Ave N Ste 601Nashville, TN 37203-1631 · Phone (815) 541-1741
Location 2631 N Longwood St Ste 103Rockford, IL 61107-4263 · Phone (815) 692-5585

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee, Oscar Insurance Company, UnitedHealthcare.Insurance ›

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JALEN ALL MSW
Social Worker
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (615) 229-7802
JOEL DAWSON WELLS LMSW
Social Worker
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (615) 649-8656
VANESSA VICTORIA ORELLANA-GRIGGS LCSW
Social Worker (Clinical)
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (615) 229-7802
VERKITA WASHINGTON LMSW
Social Worker (Clinical)
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (615) 229-7802
MERRILL ATLAS
Social Worker
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (310) 310-1631
BENJAMIN HOLMES COUNSELING, PLLC
Social Worker (Clinical)
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (615) 229-7802
ANNA KIRCHNER LMSW
Social Worker (Clinical)
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (615) 229-7802
SWITCHBACK COUNSELING SERVICES
Social Worker (Clinical)
2000 GLEN ECHO RD STE 200
NASHVILLE, TN 37215
Davidson County (615) 319-8063

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Diddens's NPI number?

The NPI number for Mark Diddens is 1326754151. It was assigned to this individual provider in the NPPES registry on January 25, 2023.

Where is Mark Diddens located?

Mark Diddens practices at 2000 Glen Echo Rd Ste 200, Nashville, TN 37215. The listed phone number is (615) 649-8656.

What is Mark Diddens's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

What insurance does Mark Diddens accept?

Health plans from BlueCross BlueShield of Tennessee, Oscar Insurance Company and UnitedHealthcare list Mark Diddens as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Diddens was last updated on June 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.