Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Cynthia Ann Sink, D.P.M. FACFAS SC

Foot Surgery Podiatrist in Orland Park, IL · enumerated 2005 · practices at Cynthia A Sink Dpm Facfas Sc.

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

National Provider Identifier

1639168503

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Registry record

Entity type Individual (Type 1)

Name Dr. Cynthia Ann Sink

Credential D.P.M. FACFAS SC

Sex Female

Practice address 10760 W 143rd St, Suite 60, Orland Park, IL, 60462

Phone (708) 301-5600

Fax (708) 301-5602

Enumeration date Oct 13, 2005

Last updated in NPPES Dec 9, 2021

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 016004273 (IL) Secondary

213ES0131X Foot Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License 016004273 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
016004273	Medicaid	IL	-

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 Cynthia Sink?

Cynthia Sink is registered in NPPES with the primary taxonomy of Foot Surgery Podiatrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Cynthia A Sink Dpm Facfas Sc Primary Podiatric Medicine Podiatrist · Orland Park, IL NPI 1043389703

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-09.