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

Dr. Diana F Guthaner, M.D.

Body Imaging Physician in Palo Alto, CA · enumerated 2006 · practices at Diana F Guthaner M D Inc.

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

National Provider Identifier

1790737724

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Registry record

Entity type Individual (Type 1)

Name Dr. Diana F Guthaner

Credential M.D.

Sex Female

Practice address Palo Alto, CA, 94306

Phone (650) 617-8655

Fax (650) 322-3416

Enumeration date May 17, 2006

Last updated in NPPES Dec 30, 2020

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

Taxonomy & licenses

2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians · License A30203 (CA) 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
300007822	Other	CA	MEDICARE RAILROAD

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 Diana Guthaner's NPI record?

Cross-check NPI 1790737724 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1790737724 active?

Yes, as of the latest NPPES snapshot, NPI 1790737724 is active (record last updated 2020-12-30).

Other providers at this practice address

Browse all →

Jessie Jacob Diagnostic Radiology Physician · Palo Alto, CA NPI 1083644223 Diana F Guthaner M D Inc Mammography Clinic/Center · Palo Alto, CA NPI 1578613907

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-30.