Individual Healthcare Provider
Mason David Tippy, MD
Provider's NPPES record last updated: June 29, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1417576034
- Primary Specialty
- Radiology — Diagnostic Radiology
- Practice Location
- Novato, California
- Sole Proprietor
- Yes
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 20, 2026, 10:15 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Radiology
Diagnostic Radiology
Allopathic & Osteopathic Physicians
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Taxonomy code 2085R0202X
Provider-Reported License Information
- Radiology (California)
- A200651
Practice Locations
Practice Location
180 Rowland Way
Novato, California 94945-5009
Phone: (415) 209-1522
Additional Practice Location
347 Andrieux St
Sonoma, California 95476-6811
Phone: (707) 935-5020
Additional Practice Location
5176 Hill Rd E
Lakeport, California 95453-6300
Phone: (707) 262-5000
Fax: (415) 209-1502
Additional Practice Location
505 Parnassus Ave
San Francisco, California 94143-2204
Phone: (415) 353-2887
Record Information
- Enumeration Date
- April 14, 2020
- Provider's NPPES Record Last Updated
- June 29, 2026
- Certification Date
- June 29, 2026
- NPISignal NPPES Dataset
- August 2026
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