Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Brian Daniel Witt, M.D.

Pulmonary Disease Physician in Davenport, IA · enumerated 2010.

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

National Provider Identifier

1952628646

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Registry record

Entity type Individual (Type 1)

Name Mr. Brian Daniel Witt

Credential M.D.

Sex Male

Practice address 1801 E. 54th Street, Ste 100, Davenport, IA, 52807

Phone (563) 421-0555

Fax (563) 421-0559

Enumeration date Apr 21, 2010

Last updated in NPPES Apr 26, 2021

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License MD44909 (IA) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License A141309 (CA) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License MD-44909 (IA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

How do I verify Brian Witt's NPI record?

Cross-check NPI 1952628646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1952628646 active?

Yes, as of the latest NPPES snapshot, NPI 1952628646 is active (record last updated 2021-04-26).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-26.