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

Michael Aaron Nitzberg, MD

Emergency Medicine Physician in Alexandria, VA · enumerated 2013.

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

National Provider Identifier

1700129921

Verified

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Registry record

Entity type Individual (Type 1)

Name Michael Aaron Nitzberg

Credential MD

Sex Male

Practice address Alexandria, VA, 22304

Phone (703) 504-3000

Enumeration date Apr 5, 2013

Last updated in NPPES Jun 10, 2016

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

Taxonomy & licenses

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

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 0101260114 (VA) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD044047 (DC) 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

Where does Michael Nitzberg practice?

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

What is the NPI number for Michael Nitzberg?

The National Provider Identifier (NPI) for Michael Nitzberg is 1700129921, 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 2016-06-10.