Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Si Yun Melinda Tan, MD

Hematology (Internal Medicine) Physician in Rochester, MN · enumerated 2024.

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

National Provider Identifier

1053159814

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Registry record

Entity type Individual (Type 1)

Name Si Yun Melinda Tan

Credential MD

Sex Female

Practice address Mayo Clinic 200 First Street Sw, Rochester, MN, 55905

Phone (507) 405-7004

Enumeration date Jul 16, 2024

Last updated in NPPES Sep 9, 2024

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 34098 (MN) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Si Yun Melinda Tan's NPI record?

Cross-check NPI 1053159814 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1053159814 active?

Yes, as of the latest NPPES snapshot, NPI 1053159814 is active (record last updated 2024-09-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-09.