NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Murray James Grissom, MD

Diagnostic Radiology Physician in Menlo Park, CA · enumerated 2015 · practices at San Mateo Medical Center.

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

National Provider Identifier

1720465396

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Murray James Grissom
Credential MD
Sex Male
Practice address 795 Willow Rd Bldg 334, Suite C210, Menlo Park, CA, 94025
Enumeration date May 2, 2015
Last updated in NPPES Mar 31, 2023

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License TP674 (KY) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 54612 (KY) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 66468 (CT) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License A147782 (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 is the NPI number for Murray Grissom?
The National Provider Identifier (NPI) for Murray Grissom is 1720465396, a Type 1 (individual) record in the CMS NPPES registry.
Where does Murray Grissom practice?
The practice location on file with NPPES is in Menlo Park, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-31.