Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Kenneth Heston, CRNA

Certified Registered Nurse Anesthetist in Spearfish, SD · enumerated 2006.

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

National Provider Identifier

1518999770

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Registry record

Entity type Individual (Type 1)

Name Mr. William Kenneth Heston

Credential CRNA

Sex Male

Practice address 1316 N 10th St, Spearfish, SD, 57783

Phone (605) 642-3113

Fax (605) 642-3117

Enumeration date Jul 7, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License CR000179 (SD) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
430058457	Other	-	RR MEDICARE
438620	Other	MT	MEDICAID
110048300	Other	WY	MEDICAID
9212491	Other	SD	DAKOTA CARE
0006915	Other	SD	BCBS
5750107	Medicaid	SD	-

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 William Heston?

William Heston is registered in NPPES with the primary taxonomy of Certified Registered Nurse Anesthetist. 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.

Other providers at this practice address

Browse all →

Regional Health Physicians, Inc. General Acute Care Hospital · Spearfish, SD NPI 1609823749 Scott Matthew Certified Registered Nurse Anesthetist · Spearfish, SD NPI 1275758559 Monument Health Network, Inc. General Acute Care Hospital · Spearfish, SD NPI 1720491137

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.