Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David L Kowalk, M.D.

Orthopaedic Surgery Physician in Frederick, MD · enumerated 2006.

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

National Provider Identifier

1740258409

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Registry record

Entity type Individual (Type 1)

Name Dr. David L Kowalk

Credential M.D.

Sex Male

Practice address 501 W 7th St, Frederick, MD, 21701

Phone (301) 663-9573

Fax (240) 439-8910

Enumeration date Mar 9, 2006

Last updated in NPPES Jan 24, 2020

Taxonomy & licenses

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License D0053002 (MD) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License D53002 (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

Is NPI 1740258409 active?

Yes, as of the latest NPPES snapshot, NPI 1740258409 is active (record last updated 2020-01-24).

How do I verify David Kowalk's NPI record?

Cross-check NPI 1740258409 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-24.