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HEIDI MARIA EVJEN MATTILA
NPI 1417423963
Psychologist - Clinical in Bethesda, MD

Active since October 22, 2018
4405 E WEST HWY STE 411, BETHESDA, MD 20814(202) 557-6713 Get Directions Write a Review

NPPES record last updated: October 22, 2018. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Heidi Maria Evjen Mattila NPPES

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

HEIDI MARIA EVJEN MATTILA (NPI 1417423963) is an individual clinical provider in Bethesda, Maryland, licensed in Maryland (06058) and active in the NPI registry since October 2018. She maintains a secondary practice location in Silver Spring.

NPPES Registry Identity

NPI1417423963
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameHEIDI MARIA EVJEN MATTILA
Location Address4405 E WEST HWY STE 411Bethesda, MD 20814-4535
Mailing Address1414 21st St NwWashington, DC 20036-5901 · (202) 557-6713
Phone(202) 557-6713
Sole ProprietorYes
Enumeration DateOctober 22, 2018
✔ NPI 1417423963 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MD · 06058
Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

4405 E WEST HWY STE 411, Bethesda, MD 20814
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Secondary Practice Location 1

Location 1801 Roeder Rd Ste 425Silver Spring, MD 20910-4472 · Phone (301) 949-4907

Other Providers at the Same Location NPPES

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

WATERSHED PRACTICE, LLC
Counselor (Mental Health)
4405 E WEST HWY STE 411
BETHESDA, MD 20814
Montgomery County (717) 478-8334

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 Heidi Mattila's NPI number?

The NPI number for Heidi Mattila is 1417423963. It was assigned to this individual provider in the NPPES registry on October 22, 2018.

Where is Heidi Mattila located?

Heidi Mattila practices at 4405 E West Hwy Ste 411, Bethesda, MD 20814. The listed phone number is (202) 557-6713.

What is Heidi Mattila's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Heidi Mattila was last updated on October 22, 2018. NPI Profile syncs with the weekly NPPES data releases published by CMS.