1. Home
  2. Directory
  3. Maryland
  4. Bethesda
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KAREN A HENNESSY CRNP
NPI 1891137097
Nurse Practitioner in Bethesda, MD

Active since July 29, 2013
4405 E WEST HWY STE 311B, BETHESDA, MD 20814(301) 479-6966(866) 795-0725 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Karen A Hennessy Crnp NPPES

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

KAREN A HENNESSY CRNP (NPI 1891137097) is an individual nurse practitioner in Bethesda, Maryland, licensed in Maryland (R096333) and active in the NPI registry since July 2013.

NPPES Registry Identity

NPI1891137097
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameKAREN A HENNESSYCredential: CRNP
Location Address4405 E WEST HWY STE 311BBethesda, MD 20814-4534
Mailing Address2900 The Concord CtEllicott City, MD 21042-2170 · (301) 479-6966 · Fax (866) 795-0725
Phone(301) 479-6966
Fax(866) 795-0725
Sole ProprietorYes
Enumeration DateJuly 29, 2013
Last NPPES UpdateAugust 11, 2026
NPPES CertifiedAugust 11, 2026
✔ NPI 1891137097 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MD · R096333
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
4405 E WEST HWY STE 311B, Bethesda, MD 20814
Open in Google Maps ↗

Other Providers at the Same Location NPPES

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

STEFANI KLINEDINST LCSW-C
Social Worker (Clinical)
4405 E WEST HWY STE 311B
BETHESDA, MD 20814
Montgomery County (301) 908-5529

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 Karen Hennessy's NPI number?

The NPI number for Karen Hennessy is 1891137097. It was assigned to this individual provider in the NPPES registry on July 29, 2013.

Where is Karen Hennessy located?

Karen Hennessy practices at 4405 E West Hwy Ste 311B, Bethesda, MD 20814. The listed phone number is (301) 479-6966.

What is Karen Hennessy's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for Karen Hennessy was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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.