Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM H MCLAIN DMD
NPI 1063493807
Dentist - General Practice in Menlo Park, CA

Q: What is William Mclain's NPI number?

The NPI number for William Mclain is 1063493807. It was assigned to this individual provider in the NPPES registry on November 9, 2005.

Q: What is William Mclain's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for William Mclain was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.

Active since November 09, 2005

1300 UNIVERSITY DR, SUITE 7, MENLO PARK, CA 94025(650) 326-1682(650) 324-9884 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. William H Mclain Dmd NPPES

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

DR. WILLIAM H MCLAIN DMD (NPI 1063493807) is an individual general practice provider in Menlo Park, California, licensed in California (21610) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1063493807

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. WILLIAM H MCLAINCredential: DMD

Location Address1300 UNIVERSITY DR, SUITE 7Menlo Park, CA 94025-4203

Mailing Address1300 University Dr, Suite 7Menlo Park, CA 94025-4203 · (650) 326-1682 · Fax (650) 324-9884

Phone(650) 326-1682

Fax(650) 324-9884

Sole ProprietorNo

Enumeration DateNovember 9, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1063493807 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in CA · 21610

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

1300 UNIVERSITY DR, Menlo Park, CA 94025

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Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CAROL EFRON PEYSER M.D.

Specialist

1300 UNIVERSITY DR, SUITE 4
MENLO PARK, CA 94025

San Mateo County (650) 323-0433

GRACIELA SHIMIZU OLIVA DDS, MSD

Dentist (Prosthodontics)

1300 UNIVERSITY DR, SUITE 1
MENLO PARK, CA 94025

San Mateo County (650) 600-8206

DR. GRANT F. HALISCHUK MD

Psychiatry & Neurology (Psychiatry)

1300 UNIVERSITY DR, SUITE 4
MENLO PARK, CA 94025

San Mateo County (650) 261-6655

DR. NEGAR PARRAVI DDS

Dentist (General Practice)

1300 UNIVERSITY DR, SUITE 3
MENLO PARK, CA 94025

San Mateo County (650) 325-2829

DR. LANA JEAN SUNDAHL D.D.S.

Dentist (General Practice)

1300 UNIVERSITY DR, #1-A
MENLO PARK, CA 94025

San Mateo County (659) 329-0167

DR. SCOTT W KALOUST DDS, MS

Dentist (Orthodontics and Dentofacial Orthopedics)

1300 UNIVERSITY DR
MENLO PARK, CA 94025

San Mateo County (650) 326-0250

DR. PAUL S. GERBER DDS, MS

Dentist (Pediatric Dentistry)

1300 UNIVERSITY DR, #8
MENLO PARK, CA 94025

San Mateo County (650) 323-0264

JILL M. COOPER

Marriage & Family Therapist

1300 UNIVERSITY DR, SUITE 6
MENLO PARK, CA 94025

San Mateo County (650) 529-5188

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 Mclain's NPI number?

The NPI number for William Mclain is 1063493807. It was assigned to this individual provider in the NPPES registry on November 9, 2005.

Where is William Mclain located?

William Mclain practices at 1300 University Dr Suite 7, Menlo Park, CA 94025. The listed phone number is (650) 326-1682.

What is William Mclain's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for William Mclain was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.