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HARRISON AND FELDHAUSEN PC
NPI 1659492494
Clinical Nurse Specialist - Psychiatric/Mental Health in Olney, MD

Active since April 02, 2007
2923 OLNEY SANDY SPRING RD, #E, OLNEY, MD 20832(301) 570-4400 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

About Harrison And Feldhausen Pc NPPES

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

HARRISON AND FELDHAUSEN PC (NPI 1659492494) is a healthcare organization registered as a psychiatric/mental health in Olney, Maryland and active in the NPI registry since April 2007. The organization lists Barbara Ruth Harrison, Vice President, as its authorized official.

NPPES Registry Identity

NPI1659492494
Entity TypeOrganization
Primary Taxonomy364SP0808X
Legal Business NameHARRISON AND FELDHAUSEN PC
Location Address2923 OLNEY SANDY SPRING RD, #EOlney, MD 20832-1528
Mailing Address2923 Olney Sandy Spring Rd, #eOlney, MD 20832-1528 · (301) 570-4400
Phone(301) 570-4400
Organization SubpartNo
Authorized OfficialBarbara Ruth HarrisonVice President · (301) 570-4400
Enumeration DateApril 2, 2007
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1659492494 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinical Nurse Specialist · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code364SP0808X
Also ListedNurse Practitioner · Psychiatric/Mental HealthTaxonomy 363LP0808X
2923 OLNEY SANDY SPRING RD, Olney, MD 20832
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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

Reviews for HARRISON AND FELDHAUSEN PC

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Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

MS. JON WINTER M.A.
Marriage & Family Therapist
2923 OLNEY SANDY SPRING RD, SUITE C
OLNEY, MD 20832
Montgomery County (301) 774-3305
MS. KAREN D GORDON LCSWC
Social Worker (Clinical)
2923 OLNEY SANDY SPRING RD, #E
OLNEY, MD 20832
Montgomery County (301) 924-5475
JEREMI J ARROYO D.D.S.
Dentist (General Practice)
2923 OLNEY SANDY SPRING RD, SUITE D
OLNEY, MD 20832
Montgomery County (301) 924-5500
ONE WAY MEDICAL, LLC
Durable Medical Equipment & Medical Supplies
2923 OLNEY SANDY SPRING RD, SUITE C
OLNEY, MD 20832
Montgomery County (301) 774-8200
JACQUELINE W EISEN D.D.S.
Dentist
2923 OLNEY SANDY SPRING RD
OLNEY, MD 20832
Montgomery County (301) 924-5500
HOUSE OF HOPE MARYLAND
Voluntary or Charitable
2923 OLNEY SANDY SPRING RD, C
OLNEY, MD 20832
Montgomery County (301) 452-7252

Frequently Asked Questions

What is HARRISON AND FELDHAUSEN PC's NPI number?

The NPI number assigned to this healthcare provider is 1659492494, enumerated as an "organization" on April 02, 2007.

Where is the provider located?

The provider is located at 2923 OLNEY SANDY SPRING RD #E OLNEY, MD 20832 and the phone number is (301) 570-4400.

What is the provider's specialty?

Clinical Nurse Specialist with taxonomy code 364SP0808X and a focus in Psychiatric/Mental Health.