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WATERSHED PRACTICE, LLC
NPI 1487591251
Counselor - Mental Health in Bethesda, MD

Active since April 30, 2026
4405 E WEST HWY STE 411, BETHESDA, MD 20814(717) 478-8334 Get Directions Write a Review

NPPES record last updated: April 30, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Watershed Practice, Llc NPPES

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

WATERSHED PRACTICE, LLC (NPI 1487591251) is a healthcare organization registered as a mental health in Bethesda, Maryland and active in the NPI registry since April 2026. The organization lists Calleen Trevenen, Partner, as its authorized official.

NPPES Registry Identity

NPI1487591251
Entity TypeOrganization
Primary Taxonomy101YM0800X
Legal Business NameWATERSHED PRACTICE, LLC
Location Address4405 E WEST HWY STE 411Bethesda, MD 20814-4535
Mailing Address2325 N Calvert StBaltimore, MD 21218-5202 · (717) 478-8334
Phone(717) 478-8334
Organization SubpartNo
Authorized OfficialCalleen TrevenenPartner · (717) 478-8334
Enumeration DateApril 30, 2026
NPPES CertifiedApril 30, 2026
✔ NPI 1487591251 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X
4405 E WEST HWY STE 411, Bethesda, MD 20814
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES

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

HEIDI MARIA EVJEN MATTILA
Psychologist (Clinical)
4405 E WEST HWY STE 411
BETHESDA, MD 20814
Montgomery County (202) 557-6713

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 Watershed Practice, LLC's NPI number?

The NPI number for Watershed Practice, LLC is 1487591251. It was assigned to this organization in the NPPES registry on April 30, 2026.

Where is Watershed Practice, LLC located?

Watershed Practice, LLC is located at 4405 E West Hwy Ste 411, Bethesda, MD 20814. The listed phone number is (717) 478-8334.

What is Watershed Practice, LLC's specialty?

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

When was this NPI record last updated?

The NPPES record for Watershed Practice, LLC was last updated on April 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.