Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Erwin Kleiner Jr., M.D., PH.D.

Anatomic Pathology Physician in Bethesda, MD · enumerated 2007.

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

National Provider Identifier

1043336399

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Registry record

Entity type Individual (Type 1)

Name Dr. David Erwin Kleiner Jr.

Credential M.D., PH.D.

Sex Male

Practice address 10 Center Dr, Building 10, Room 2n212, Bethesda, MD, 20892

Phone (301) 594-2942

Fax (301) 480-9488

Enumeration date Mar 21, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207ZP0101X Anatomic Pathology Physician Allopathic & Osteopathic Physicians · License D0039670 (MD) Primary

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

Where does David Kleiner practice?

The practice location on file with NPPES is in Bethesda, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for David Kleiner?

The National Provider Identifier (NPI) for David Kleiner is 1043336399, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.