NPI Portal NPI Lookup & Verification

Dr. John K Hamelink, MD

Dr. John K Hamelink is a Vascular Surgery Physician provider (Surgery) practicing in Bloomington, IN, registered in the NPPES registry with NPI 1497752323 since 2005. The credential MD stands for Doctor of Medicine.

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NPI 1497752323
Entity type Individual (Type 1)
Name Dr. John K Hamelink
Credential MD
Sex Male
Practice address 550 S LANDMARK AVE, Bloomington, IN, 47403
Phone 8123391100
Fax 8123391292
Enumeration date 2005-07-07
Last updated in NPPES 2020-12-15

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2086S0129X Vascular Surgery Physician Primary 01052762A IN

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
64026446 Medicaid KY
200285190A Medicaid IN
386607090 Medicaid IL
Copy-ready billing details
Provider: John Hamelink, MD
NPI: 1497752323
Taxonomy: 2086S0129X (Vascular Surgery Physician)
Address: 550 S LANDMARK AVE, Bloomington, IN, 47403

Other providers at this practice address

NPI Name Type Specialty Location
1295730067 James Touloukian Individual Gastroenterology Physician Bloomington, IN
1922003797 Priya Kumar Individual Internal Medicine Physician Bloomington, IN
1740285519 Lawrence Rink Individual Cardiovascular Disease Physician Bloomington, IN
1467457234 Russell Dukes Individual Pulmonary Disease Physician Bloomington, IN
1588669667 Ima Inc Laboratory Organization Clinical Medical Laboratory Bloomington, IN
1386649465 Garry Tinnes Individual Internal Medicine Physician Bloomington, IN
1619972601 Mary Van Kooten Individual Family Medicine Physician Bloomington, IN
1689679664 Jerry Headdy Individual Family Medicine Physician Bloomington, IN

Verify this record

Cross-check NPI 1497752323 against the authoritative CMS record: view Dr. John K Hamelink on the official NPPES registry .

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 or validate an NPI number.

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 John Hamelink?
John Hamelink is registered in NPPES with the primary taxonomy of Vascular Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-12-15.