Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William R Blankenship, MD

Endocrinology, Diabetes & Metabolism Physician in Dakota Dunes, SD · enumerated 2006 · practices at Mercy Weight Loss Center at Dakota Dunes.

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

National Provider Identifier

1104890888

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Registry record

Entity type Individual (Type 1)

Name William R Blankenship

Credential MD

Sex Male

Practice address 705 Sioux Point Rd, Suite 100, Dakota Dunes, SD, 57049

Phone (605) 217-5500

Fax (605) 217-5515

Enumeration date Feb 17, 2006

Last updated in NPPES Jan 22, 2010

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 1188 (SD) 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
I13147	Other	IA	MEDICARE
000165998	Other	SD	RR MEDICARE
6005020	Medicaid	SD	-
4165886	Other	IA	MEDICAID

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 is the NPI number for William Blankenship?

The National Provider Identifier (NPI) for William Blankenship is 1104890888, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Blankenship practice?

The practice location on file with NPPES is in Dakota Dunes, SD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Amy Dietrich Physician Assistant · Dakota Dunes, SD NPI 1053387522 Brenda Van Scoyk Surgical Physician Assistant · Dakota Dunes, SD NPI 1689640153 Robert Anderson Surgery Physician · Dakota Dunes, SD NPI 1831165307 Larry Foster Surgery Physician · Dakota Dunes, SD NPI 1740256213 William Rizk Surgery Physician · Dakota Dunes, SD NPI 1659347128 Paul Johnson Surgery Physician · Dakota Dunes, SD NPI 1578539540 Mercy Weight Loss Center at Dakota Dunes Specialist · Dakota Dunes, SD NPI 1316150758

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-22.