Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dylan Drue Deardorff, M.D.

Internal Medicine Physician in Dumfries, VA · enumerated 2006.

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

National Provider Identifier

1942274741

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Registry record

Entity type Individual (Type 1)

Name Dr. Dylan Drue Deardorff

Credential M.D.

Sex Male

Practice address 3713 Fettler Park Dr, Dumfries, VA, 22025

Phone (571) 931-6037

Fax (571) 931-6039

Enumeration date Feb 16, 2006

Last updated in NPPES Oct 28, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0101048502 (VA) 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 Dylan Deardorff practice?

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

What is the NPI number for Dylan Deardorff?

The National Provider Identifier (NPI) for Dylan Deardorff is 1942274741, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-28.