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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY EVELYN ROUSE APRN, PMH
NPI 1831146935
Registered Nurse - Psychiatric/Mental Health, Adult in Gaithersburg, MD

Active since May 27, 2006
9055 SHADY GROVE CT, GAITHERSBURG, MD 20877(301) 330-0400(301) 948-4333 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mary Evelyn Rouse Aprn, Pmh NPPES

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

MARY EVELYN ROUSE APRN, PMH (NPI 1831146935) is an individual psychiatric/mental health, adult provider in Gaithersburg, Maryland, licensed in Maryland (R043705) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1831146935
Entity TypeIndividualFemale
Primary Taxonomy163WP0809X
Provider Legal NameMARY EVELYN ROUSECredential: APRN, PMH
Location Address9055 SHADY GROVE CTGaithersburg, MD 20877-1301
Mailing Address9055 Shady Grove CtGaithersburg, MD 20877-1301 · (301) 330-0400 · Fax (301) 948-4333
Phone(301) 330-0400
Fax(301) 948-4333
Sole ProprietorNo
Enumeration DateMay 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1831146935 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRegistered Nurse · Psychiatric/Mental Health, AdultNursing Service Providers
Taxonomy Code163WP0809X
License✔ Licensed in MD · R043705
9055 SHADY GROVE CT, Gaithersburg, MD 20877
Open in Google Maps ↗

Other Identifiers 1

Other311421MD · United Healthcare-mamsi

Other Providers at the Same Location NPPES 12

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

HAGERSTOWN RECOVERY LLC
Clinic/Center (Rehabilitation, Substance Use Disorder)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (301) 355-7455
WENDY GAIL OMINSKY L.C.S.W.-C.
Social Worker (Clinical)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (301) 330-0400
MAUREEN BEHR CHAMBERLIN M.D.
Psychiatry & Neurology (Psychiatry)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (301) 330-0400
ROXANNE DRYDEN-EDWARDS, MD LLC
Psychiatry & Neurology (Psychiatry)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (908) 625-9713
NANCY REID MEIKRANTZ R.N., P.M.H.C.N.S.
Registered Nurse (Psychiatric/Mental Health, Child & Adolescent)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (301) 330-0400
MICHAEL ALAN GLASSER M.D.
Psychiatry & Neurology (Psychiatry)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (301) 330-0400
HARVEY BRIAN BERTHIAUME L.C.S.W.-C.
Social Worker (Clinical)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (301) 330-0400
KELSEY VAN DYKE LCSW-C
Social Worker (Clinical)
9055 SHADY GROVE CT
GAITHERSBURG, MD 20877
Montgomery County (301) 330-0400

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 Mary Rouse's NPI number?

The NPI number for Mary Rouse is 1831146935. It was assigned to this individual provider in the NPPES registry on May 27, 2006.

Where is Mary Rouse located?

Mary Rouse practices at 9055 Shady Grove Ct, Gaithersburg, MD 20877. The listed phone number is (301) 330-0400.

What is Mary Rouse's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Psychiatric/Mental Health, Adult, with taxonomy code 163WP0809X.

When was this NPI record last updated?

The NPPES record for Mary Rouse was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.