Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Walter Knoll, DO

Pain Medicine (Anesthesiology) Physician in Urbana, IL · enumerated 2005.

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

National Provider Identifier

1013993062

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Registry record

Entity type Individual (Type 1)

Name Dr. Walter Knoll

Credential DO

Sex Male

Practice address 611 W Park St, Urbana, IL, 61801

Phone (217) 383-3303

Fax (217) 383-3265

Enumeration date Dec 21, 2005

Last updated in NPPES Jan 23, 2021

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 036088482 (IL) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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 Walter Knoll?

Walter Knoll is registered in NPPES with the primary taxonomy of Pain Medicine (Anesthesiology) Physician. 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 2021-01-23.