Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Constance N Blade, MD

Pediatrics Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1669442521

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Registry record

Entity type Individual (Type 1)

Name Constance N Blade

Credential MD

Sex Female

Practice address 1460 N Halsted St, Suite 402, Chicago, IL, 60642

Phone (312) 279-8900

Fax (312) 981-6312

Enumeration date Jan 24, 2006

Last updated in NPPES Sep 20, 2011

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 036062172 (IL) 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Constance Blade?

Constance Blade is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-20.