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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alonso Collar, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Lansing, MI · enumerated 2005.

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

National Provider Identifier

1174521025

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Registry record

Entity type Individual (Type 1)
Name Dr. Alonso Collar
Credential MD
Sex Male
Practice address 405 W Greenlawn Ave, Ste 305, Lansing, MI, 48910
Phone (517) 483-7544
Fax (517) 483-4862
Enumeration date Jul 13, 2005
Last updated in NPPES Jul 1, 2010

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 4301043194 (MI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
1174521025 Medicaid MI -

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 1174521025 active?
Yes, as of the latest NPPES snapshot, NPI 1174521025 is active (record last updated 2010-07-01).
How do I verify Alonso Collar's NPI record?
Cross-check NPI 1174521025 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 2010-07-01.