NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jed Ira Weissberg, MD

Gastroenterology Physician in Fremont, CA · enumerated 2007 · practices at Kaiser Foundation Health Plan Inc.

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

National Provider Identifier

1326190836

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Jed Ira Weissberg
Credential MD
Sex Male
Practice address 39400 Paseo Padre Parkway, Kp Fremont Medical Center, Fremont, CA, 94538
Phone (510) 271-6847
Enumeration date Jan 17, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License G41647 (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 Jed Weissberg?
Jed Weissberg is registered in NPPES with the primary taxonomy of Gastroenterology Physician. 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

Browse all →

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