Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Karen S Pierre, MD

Anatomic Pathology & Clinical Pathology Physician in Rockville, MD · enumerated 2006 · practices at Kaiser Foundation Health Plan of the Mid Atlantic States, Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255491890

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Registry record

Entity type Individual (Type 1)

Name Dr. Karen S Pierre

Credential MD

Sex Female

Practice address 6111 Executive Blvd, Rockville, MD, 20852

Phone (301) 255-4014

Fax (301) 255-4031

Enumeration date Dec 12, 2006

Last updated in NPPES Nov 30, 2011

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 0101235373 (VA) Secondary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License D61095 (MD) Primary

246QC2700X Cytotechnology Specialist/Technologist Technologists, Technicians & Other Technical Service Providers · License MD034614 (DC) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Karen Pierre?

Karen Pierre is registered in NPPES with the primary taxonomy of Anatomic Pathology & Clinical Pathology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Jing Cai Clinical Pathology/Laboratory Medicine Physician · Rockville, MD NPI 1649234774 Victor Nava Hematology (Pathology) Physician · Rockville, MD NPI 1437253572 Ira Selss Anatomic Pathology & Clinical Pathology Physician · Rockville, MD NPI 1285792556 Vasantha Iyengar Anatomic Pathology & Clinical Pathology Physician · Rockville, MD NPI 1811059405 Noriko Sato Anatomic Pathology & Clinical Pathology Physician · Rockville, MD NPI 1336201946 Jennifer Sartorelli Anatomic Pathology & Clinical Pathology Physician · Rockville, MD NPI 1154469195 Kaiser Foundation Health Plan of the Mid Atlantic States, Inc Clinical Medical Laboratory · Rockville, MD NPI 1699897629 Scott Backus Anatomic Pathology & Clinical Pathology Physician · Rockville, MD NPI 1780864678

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-30.