Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Cynthia K Aaron, M.D.

Medical Toxicology (Emergency Medicine) Physician in Detroit, MI · enumerated 2006.

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

National Provider Identifier

1922056829

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Registry record

Entity type Individual (Type 1)

Name Dr. Cynthia K Aaron

Credential M.D.

Sex Female

Practice address 4160 John R St, Suite 616, Detroit, MI, 48201

Phone (313) 993-8791

Enumeration date May 4, 2006

Last updated in NPPES Feb 13, 2008

Taxonomy & licenses

207PT0002X Medical Toxicology (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 4301084343 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
CA084343	Other	MI	BC/BS OF MI

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 1922056829 active?

Yes, as of the latest NPPES snapshot, NPI 1922056829 is active (record last updated 2008-02-13).

How do I verify Cynthia Aaron's NPI record?

Cross-check NPI 1922056829 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 2008-02-13.