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DR. WILLIAM MARTIN SPERLING M.D.
NPI 1114156577
General Practice in Santa Cruz, CA

Active since July 07, 2009
585 MOUNTAIN VIEW RD, SANTA CRUZ, CA 95065(831) 425-1382(831) 425-3765 Get Directions Write a Review

NPPES record last updated: July 7, 2009. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. William Martin Sperling M.d. NPPES

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

DR. WILLIAM MARTIN SPERLING M.D. (NPI 1114156577) is an individual general practice provider in Santa Cruz, California, licensed in California (G30976) and active in the NPI registry since July 2009.

NPPES Registry Identity

NPI1114156577
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameDR. WILLIAM MARTIN SPERLINGCredential: M.D.
Location Address585 MOUNTAIN VIEW RDSanta Cruz, CA 95065-9711
Mailing Address585 Mountain View RdSanta Cruz, CA 95065-9711 · (831) 425-1382 · Fax (831) 425-3765
Phone(831) 425-1382
Fax(831) 425-3765
Sole ProprietorYes
Enumeration DateJuly 7, 2009
✔ NPI 1114156577 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in CA · G30976
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
585 MOUNTAIN VIEW RD, Santa Cruz, CA 95065
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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 Sperling's NPI number?

The NPI number for William Sperling is 1114156577. It was assigned to this individual provider in the NPPES registry on July 7, 2009.

Where is William Sperling located?

William Sperling practices at 585 Mountain View Rd, Santa Cruz, CA 95065. The listed phone number is (831) 425-1382.

What is William Sperling's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

When was this NPI record last updated?

The NPPES record for William Sperling was last updated on July 7, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.