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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Sim, M.D.

Otolaryngology Physician in Indianapolis, IN · enumerated 2010.

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

National Provider Identifier

1730408493

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Registry record

Entity type Individual (Type 1)
Name Michael Sim
Credential M.D.
Sex Male
Practice address 550 University Blvd Ste 3170, Indianapolis, IN, 46202
Phone (317) 944-7057
Fax (317) 944-2443
Enumeration date May 20, 2010
Last updated in NPPES Nov 16, 2020

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License MD52479 (TN) Primary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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.

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Frequently asked questions

Is NPI 1730408493 active?
Yes, as of the latest NPPES snapshot, NPI 1730408493 is active (record last updated 2020-11-16).
How do I verify Michael Sim's NPI record?
Cross-check NPI 1730408493 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 2020-11-16.