Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dennis John Beckley, M.D.

Specialist in Martinez, CA · enumerated 2005.

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

National Provider Identifier

1437132560

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Registry record

Entity type Individual (Type 1)

Name Dr. Dennis John Beckley

Credential M.D.

Sex Male

Practice address 150 Muir Rd, Vancsc - 127, Martinez, CA, 94553

Phone (925) 372-2577

Fax (925) 229-4897

Enumeration date Nov 22, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G22814 (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

What specialty is Dennis Beckley?

Dennis Beckley is registered in NPPES with the primary taxonomy of Specialist. 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.

Other providers at this practice address

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Joon-Ha Ok Urology Physician · Martinez, CA NPI 1336120088 Christine Leyba Psychiatry Physician · Martinez, CA NPI 1740262872 Ivan Meadows Anatomic Pathology & Clinical Pathology Physician · Martinez, CA NPI 1801878848 Kathleen Clancy Adult Health Nurse Practitioner · Martinez, CA NPI 1497737977 Jonathan Segal Nephrology Physician · Martinez, CA NPI 1780666164 Gerhard Heinrich Internal Medicine Physician · Martinez, CA NPI 1306828728 Susan Valley Specialist · Martinez, CA NPI 1225011497 Ralph Moskowitz Cardiovascular Disease Physician · Martinez, CA NPI 1134102122

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.