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DR. WILLIAM LANG M.D.
NPI 1326445065
Specialist - Research Study in Mill Valley, CA

Active since November 24, 2014
101 CORNELIA AVE, MILL VALLEY, CA 94941(415) 755-8841 Get Directions Write a Review

NPPES record last updated: November 24, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William Lang M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM LANG M.D. (NPI 1326445065) is an individual research study provider in Mill Valley, California, licensed in California (G037379) and active in the NPI registry since November 2014.

NPPES Registry Identity

NPI1326445065
Entity TypeIndividualMale
Primary Taxonomy1744R1102X
Provider Legal NameDR. WILLIAM LANGCredential: M.D.
Location Address101 CORNELIA AVEMill Valley, CA 94941-1807
Mailing Address101 Cornelia AveMill Valley, CA 94941-1807
Phone(415) 755-8841
Sole ProprietorYes
Enumeration DateNovember 24, 2014
✔ NPI 1326445065 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialist · Research StudyOther Service Providers
Taxonomy Code1744R1102X
License✔ Licensed in CA · G037379
101 CORNELIA AVE, Mill Valley, CA 94941
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Lang's NPI number?

The NPI number for William Lang is 1326445065. It was assigned to this individual provider in the NPPES registry on November 24, 2014.

Where is William Lang located?

William Lang practices at 101 Cornelia Ave, Mill Valley, CA 94941. The listed phone number is (415) 755-8841.

What is William Lang's specialty?

The primary specialty registered for this NPI is Specialist, specializing in Research Study, with taxonomy code 1744R1102X.

When was this NPI record last updated?

The NPPES record for William Lang was last updated on November 24, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.