NPPES file of Aug 9, 2026

Harrison And Feldhausen PC in Olney, MD

This organization bills under NPI 1659492494, an organization record issued on Apr 2, 2007 with the primary taxonomy Psychiatric/Mental Health Clinical Nurse Specialist. Each clinician who works there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1659492494
Legal name
Harrison And Feldhausen PC
Entity
Type 2 · organization
Primary taxonomy
Psychiatric/Mental Health Clinical Nurse Specialist 364SP0808X
Practice location
2923 OLNEY SANDY SPRING RD #E, Olney, MD 20832
Phone
301-570-4400
Enumerated
Apr 2, 2007
Record updated
Sep 11, 2025
Authorized official
Vice President (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

2 clinicians CMS lists with Harrison And Feldhausen in Olney

  1. Barbara Harrison, APRNAdult Psychiatric/Mental Health Clinical Nurse Specialist1801828082
  2. Roberta Worrall-Feldhausen, APRNPsychiatric/Mental Health Clinical Nurse Specialist1841222973

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

Checking an organization

  1. Confirm the business with the Maryland secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

All taxonomies on this record

  • 363LP0808X Psychiatric/Mental Health Nurse Practitioner
  • 364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.