Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William L Hazard, M.D.

Specialist in Santa Barbara, CA · enumerated 2007.

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

National Provider Identifier

1578606133

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Registry record

Entity type Individual (Type 1)

Name William L Hazard

Credential M.D.

Sex Male

Practice address 514 W Pueblo St, Second Floor, Santa Barbara, CA, 93105

Phone (805) 682-7751

Fax (805) 563-2527

Enumeration date Feb 14, 2007

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G38140 (CA) 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

Is NPI 1578606133 active?

Yes, as of the latest NPPES snapshot, NPI 1578606133 is active (record last updated 2007-07-09).

How do I verify William Hazard's NPI record?

Cross-check NPI 1578606133 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Zed Reagan Anesthesiology Physician · Santa Barbara, CA NPI 1508803495 Jason Campagna Anesthesiology Physician · Santa Barbara, CA NPI 1467499103 Gareld Anderson Anesthesiology Physician · Santa Barbara, CA NPI 1114073145 Douglas Etsell Anesthesiology Physician · Santa Barbara, CA NPI 1437205580 Stephen Gordon Specialist · Santa Barbara, CA NPI 1235272881 Michael Cox Anesthesiology Physician · Santa Barbara, CA NPI 1033252648 Bruce Goetting Anesthesiology Physician · Santa Barbara, CA NPI 1306989934 John Keating Anesthesiology Physician · Santa Barbara, CA NPI 1457494015

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.