NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

William Ernest Berlingieri, M.D

Psychiatry Physician in Richmond, CA · enumerated 2006 · practices at Contra Costa County.

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

National Provider Identifier

1285796847

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Registry record

Entity type Individual (Type 1)
Name William Ernest Berlingieri
Credential M.D
Sex Male
Practice address Richmond, CA, 94805
Fax (510) 231-8551
Enumeration date Dec 13, 2006
Last updated in NPPES Mar 7, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 015993 (ME) 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
015993 Other ME MEDICAL LICENSE NUMBER

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 1285796847 active?
Yes, as of the latest NPPES snapshot, NPI 1285796847 is active (record last updated 2023-03-07).
How do I verify William Berlingieri's NPI record?
Cross-check NPI 1285796847 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.