Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Joseph Watts, M.D.

Anatomic Pathology & Clinical Pathology Physician in San Diego, CA · enumerated 2007.

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

National Provider Identifier

1396958559

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name William Joseph Watts

Credential M.D.

Sex Male

Practice address 7592 Metropolitan Dr, Suite 405-407, San Diego, CA, 92108

Phone (619) 297-4900

Fax (619) 297-5460

Enumeration date May 7, 2007

Last updated in NPPES Jun 20, 2008

Taxonomy & licenses

207ZD0900X Dermatopathology (Pathology) Physician Allopathic & Osteopathic Physicians · License A82647 (CA) Secondary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License A82647 (CA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
00A826470	Medicaid	CA	-

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 1396958559 active?

Yes, as of the latest NPPES snapshot, NPI 1396958559 is active (record last updated 2008-06-20).

How do I verify William Watts's NPI record?

Cross-check NPI 1396958559 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

Browse all →

Michael Huntley Pain Medicine (Anesthesiology) Physician · San Diego, CA NPI 1295762078 Douglas Ellison Anatomic Pathology & Clinical Pathology Physician · San Diego, CA NPI 1922022029 Slawomir Niewiadomski Anatomic Pathology & Clinical Pathology Physician · San Diego, CA NPI 1205841665 San Diego Pathologists Medical Group Inc Anatomic Pathology & Clinical Pathology Physician · San Diego, CA NPI 1982619466 Bruce Robbins Anatomic Pathology & Clinical Pathology Physician · San Diego, CA NPI 1194732644 David Francis Anatomic Pathology & Clinical Pathology Physician · San Diego, CA NPI 1174530612 Nancy Harrison Anatomic Pathology & Clinical Pathology Physician · San Diego, CA NPI 1265449748 Carla Stayboldt Anatomic Pathology & Clinical Pathology Physician · San Diego, CA NPI 1427066836

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-20.