Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Randall Blair, MD, PHD

Clinical Genetics (M.D.) Physician in San Francisco, CA · enumerated 2017.

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

National Provider Identifier

1972034841

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Registry record

Entity type Individual (Type 1)

Name Dr. David Randall Blair

Credential MD, PHD

Sex Male

Practice address 550 16th St # 706, San Francisco, CA, 94158

Phone (415) 476-5001

Enumeration date Mar 23, 2017

Last updated in NPPES Jul 7, 2020

Taxonomy & licenses

207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License A159073 (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

Is NPI 1972034841 active?

Yes, as of the latest NPPES snapshot, NPI 1972034841 is active (record last updated 2020-07-07).

How do I verify David Blair's NPI record?

Cross-check NPI 1972034841 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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