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

Dr. Andrew Ross Weymer, M.D.

Pulmonary Disease Physician in Oxnard, CA · enumerated 2005.

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

National Provider Identifier

1689675514

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Registry record

Entity type Individual (Type 1)

Name Dr. Andrew Ross Weymer

Credential M.D.

Sex Male

Practice address Oxnard, CA, 93036

Phone (805) 485-2400

Fax (805) 485-3025

Enumeration date Aug 2, 2005

Last updated in NPPES Dec 5, 2022

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G67821 (CA) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License G67821 (CA) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License G67821 (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.

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Frequently asked questions

How do I verify Andrew Weymer's NPI record?

Cross-check NPI 1689675514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1689675514 active?

Yes, as of the latest NPPES snapshot, NPI 1689675514 is active (record last updated 2022-12-05).

Other providers at this practice address

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Raj Bhatia Critical Care Medicine (Internal Medicine) Physician · Oxnard, CA NPI 1447281704 West Coast Pulmonary Physicians A Professional Medical Corporation Pulmonary Disease Physician · Oxnard, CA NPI 1558464065 Raj Bhatia, M.D. Inc Critical Care Medicine (Internal Medicine) Physician · Oxnard, CA NPI 1669521142 Glen Abergel, M.D., Inc Critical Care Medicine (Internal Medicine) Physician · Oxnard, CA NPI 1366591844 Daniel Goba Pulmonary Disease Physician · Oxnard, CA NPI 1306031810 Bennyson Young So Critical Care Medicine (Internal Medicine) Physician · Oxnard, CA NPI 1407015290 Glen Abergel,MD, Inc. Contractor · Oxnard, CA NPI 1073834891 West Coast Critical Care Specialists, Inc. Critical Care Medicine (Internal Medicine) Physician · Oxnard, CA NPI 1861707770

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-05.