Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Alexander Chrostowski, M.D.

Emergency Medicine Physician in Germantown, MD · enumerated 2011.

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

National Provider Identifier

1871884304

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Registry record

Entity type Individual (Type 1)

Name Dr. David Alexander Chrostowski

Credential M.D.

Sex Male

Practice address 20010 Century Boulevard, Suite 200, Germantown, MD, 20874

Phone (240) 686-2300

Enumeration date May 2, 2011

Last updated in NPPES Jun 9, 2014

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License D0077766 (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

How do I verify David Chrostowski's NPI record?

Cross-check NPI 1871884304 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871884304 active?

Yes, as of the latest NPPES snapshot, NPI 1871884304 is active (record last updated 2014-06-09).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-09.