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

Daniel Anthony Grier, MD

Anesthesiology Physician in Greenbrae, CA · enumerated 2020.

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

National Provider Identifier

1730718909

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Registry record

Entity type Individual (Type 1)
Name Daniel Anthony Grier
Credential MD
Sex Male
Practice address Greenbrae, CA, 94904
Phone (415) 925-7100
Enumeration date Apr 8, 2020
Last updated in NPPES Jun 10, 2024

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

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A188878 (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.

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Frequently asked questions

Where does Daniel Grier practice?
The practice location on file with NPPES is in Greenbrae, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Daniel Grier?
The National Provider Identifier (NPI) for Daniel Grier is 1730718909, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-10.