Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. David Nauen, MD

Neuropathology Physician in Baltimore, MD · enumerated 2010.

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

National Provider Identifier

1700104973

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Registry record

Entity type Individual (Type 1)

Name Dr. David Nauen

Credential MD

Sex Male

Practice address Baltimore, MD, 21205

Phone (410) 955-0944

Enumeration date May 12, 2010

Last updated in NPPES May 18, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207ZN0500X Neuropathology Physician Allopathic & Osteopathic Physicians · License D0080950 (MD) Primary

207ZP0101X Anatomic Pathology Physician Allopathic & Osteopathic Physicians · License 4248 (MD) 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

Is NPI 1700104973 active?

Yes, as of the latest NPPES snapshot, NPI 1700104973 is active (record last updated 2016-05-18).

How do I verify David Nauen's NPI record?

Cross-check NPI 1700104973 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 2016-05-18.