Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark E Ruff, CRNA

Certified Registered Nurse Anesthetist in Springfield, IL · enumerated 2006.

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

National Provider Identifier

1871555284

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Registry record

Entity type Individual (Type 1)

Name Mark E Ruff

Credential CRNA

Sex Male

Practice address 800 E Carpenter St, Springfield, IL, 62769

Phone (217) 544-6464

Fax (217) 757-6537

Enumeration date Apr 3, 2006

Last updated in NPPES Jan 4, 2022

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 209000515 (IL) Primary

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

Other identifiers

Identifier	Type	State	Issuer
038222	Other	-	CCNA CERTIFICATION
041199920	Other	IL	RN LICENSE

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 Mark Ruff?

Mark Ruff 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-04.