NPI Portal NPI Lookup & Verification

Dr. David Nielsen Krag, MD

Dr. David Nielsen Krag is a Surgical Oncology Physician provider (Surgery) practicing in Burlington, VT, registered in the NPPES registry with NPI 1043238017 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1043238017
Entity type Individual (Type 1)
Name Dr. David Nielsen Krag
Credential MD
Sex Male
Practice address 111 COLCHESTER AVE, MAIN PAVILIION-LEVEL 2, Burlington, VT, 05401
Phone 8026565830
Fax 8026565833
Enumeration date 2006-07-18
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2086X0206X Surgical Oncology Physician Primary 042-0008329 VT

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: David Krag, MD
NPI: 1043238017
Taxonomy: 2086X0206X (Surgical Oncology Physician)
Address: 111 COLCHESTER AVE, MAIN PAVILIION-LEVEL 2, Burlington, VT, 05401

Other providers at this practice address

NPI Name Type Specialty Location
1285551044 Madison Logan Individual Student in an Organized Health Care Education/Training Program Burlington, VT
1073430641 Sara Wronski Individual Student in an Organized Health Care Education/Training Program Burlington, VT
1649274903 Gabrielle Mikula Individual Family Nurse Practitioner Burlington, VT
1225033699 Julia Clayton Individual Midwife Burlington, VT
1861499964 Johannes Nunnink Individual Medical Oncology Physician Burlington, VT
1053318766 Paul Unger Individual Hematology & Oncology Physician Burlington, VT
1417954322 Karen Leonard Individual Pediatrics Physician Burlington, VT
1295733475 Michael Uzer Individual Gastroenterology Physician Burlington, VT

Verify this record

Cross-check NPI 1043238017 against the authoritative CMS record: view Dr. David Nielsen Krag 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 David Krag?
David Krag is registered in NPPES with the primary taxonomy of Surgical Oncology 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 2007-07-08.