Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sara Elizabeth Tan Yap, MD

Endocrinology, Diabetes & Metabolism Physician in Bourbonnais, IL · enumerated 2018.

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

National Provider Identifier

1225514334

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Registry record

Entity type Individual (Type 1)

Name Sara Elizabeth Tan Yap

Credential MD

Sex Female

Practice address 100 Fitness Dr, Bourbonnais, IL, 60914

Phone (815) 936-8909

Enumeration date Jul 12, 2018

Last updated in NPPES Sep 8, 2023

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 036162611 (IL) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 125.071666 (IL) 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

How do I verify Sara Elizabeth Yap's NPI record?

Cross-check NPI 1225514334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1225514334 active?

Yes, as of the latest NPPES snapshot, NPI 1225514334 is active (record last updated 2023-09-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-08.