Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Theodore Gaensbauer, MD

Pediatric Infectious Diseases Physician in Rochester, MN · enumerated 2011 · practices at Mayo Clinic.

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

National Provider Identifier

1861783920

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Registry record

Entity type Individual (Type 1)

Name Dr. James Theodore Gaensbauer

Credential MD

Sex Male

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

Phone (507) 284-2511

Enumeration date Apr 25, 2011

Last updated in NPPES Jan 16, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License DR.0050121 (CO) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 69997 (MN) Secondary

2080P0208X Pediatric Infectious Diseases Physician Allopathic & Osteopathic Physicians · License DR.0050121 (CO) Secondary

2080P0208X Pediatric Infectious Diseases Physician Allopathic & Osteopathic Physicians · License 69997 (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

What specialty is James Gaensbauer?

James Gaensbauer is registered in NPPES with the primary taxonomy of Pediatric Infectious Diseases Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-16.