Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Vincent C Traynelis, MD

Neurological Surgery Physician in Chicago, IL · enumerated 2005.

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

National Provider Identifier

1487647517

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Registry record

Entity type Individual (Type 1)

Name Vincent C Traynelis

Credential MD

Sex Male

Practice address 1725 W Harrison St, Suite 970, Chicago, IL, 60612

Phone (312) 942-6644

Fax (312) 942-2176

Enumeration date Aug 24, 2005

Last updated in NPPES Feb 26, 2009

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 27034 (IA) Secondary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 036-122576 (IL) 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
0272963	Medicaid	IA	-
27296	Other	IA	WELLMARK BCBS

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 1487647517 active?

Yes, as of the latest NPPES snapshot, NPI 1487647517 is active (record last updated 2009-02-26).

How do I verify Vincent Traynelis's NPI record?

Cross-check NPI 1487647517 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 2009-02-26.