Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Dyan L Sefton, CRNA

Certified Registered Nurse Anesthetist in Charlestown, IN · enumerated 2006.

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

National Provider Identifier

1477647527

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Registry record

Entity type Individual (Type 1)

Name Ms. Dyan L Sefton

Credential CRNA

Sex Female

Practice address Charlestown, IN, 47111

Phone (812) 256-7679

Fax (812) 256-7419

Enumeration date Oct 3, 2006

Last updated in NPPES Nov 8, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 28104181A (IN) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 28104181A (IN) Primary

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

Other identifiers

Identifier	Type	State	Issuer
200103090B	Medicaid	IN	-
28104181A	Other	IN	IN LICENSE NUMBER
430072300	Other	IL	MEDICARE RAILROAD #
1467530931	Other	IN	SEFTON ANESTHESIA SERVICES GROUP NPI#
000000286565	Other	IN	ABCBS PROVIDER #

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 Dyan Sefton?

Dyan Sefton 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-08.