Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Barbara Weiser, M.D.

Infectious Disease Physician in Mather, CA · enumerated 2005.

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

National Provider Identifier

1164419784

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Barbara Weiser

Credential M.D.

Sex Female

Practice address 10535 Hospital Way, Mather Va Hospital, Mather, CA, 95655

Phone (916) 843-7000

Fax (916) 366-7096

Enumeration date Sep 29, 2005

Last updated in NPPES Jun 27, 2011

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 130714-1 (NY) 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
00882971	Medicaid	NY	-

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

How do I verify Barbara Weiser's NPI record?

Cross-check NPI 1164419784 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1164419784 active?

Yes, as of the latest NPPES snapshot, NPI 1164419784 is active (record last updated 2011-06-27).

Other providers at this practice address

Browse all →

Harold Burger Infectious Disease Physician · Mather, CA NPI 1447251681 Aliya Akbar Family Medicine Physician · Mather, CA NPI 1467454934 Patricia Dalton Specialist · Mather, CA NPI 1003898750 Raymond Byun Infectious Disease Physician · Mather, CA NPI 1578545950 Randall Goethals Geriatric Medicine (Internal Medicine) Physician · Mather, CA NPI 1316920713 Edwin Horgan Otolaryngology Physician · Mather, CA NPI 1881677177 Martin Hoffman Physical Medicine & Rehabilitation Physician · Mather, CA NPI 1245213503 Philip Eulie Internal Medicine Physician · Mather, CA NPI 1669455762

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-27.