Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather A Thompson Buum, MD

Internal Medicine Physician in Minneapolis, MN · enumerated 2006.

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

National Provider Identifier

1699864611

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Registry record

Entity type Individual (Type 1)

Name Heather A Thompson Buum

Credential MD

Sex Female

Practice address 420 Delaware Street Se, University of Minnesota Physicians, Minneapolis, MN, 55455

Phone (612) 884-0999

Enumeration date Oct 11, 2006

Last updated in NPPES Apr 18, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 43806 (MN) 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
142411	Other	MN	UCARE
323088100	Medicaid	MN	-
04-04089	Other	MN	MEDICA CHOICE
HP40590	Other	MN	HEALTH PARTNERS
170274	Other	MN	FAIRVIEW
04-00123	Other	MN	MEDICA PRIMARY
1552594	Other	MN	ARAZ
0051918	Medicaid	MT	-
1030018	Other	MN	PREFERRED ONE
34172900	Medicaid	WI	-

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 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 Heather Thompson Buum?

Heather Thompson Buum is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-18.