WILLIAM C STEFFAN MD
NPI 1790758431
Family Medicine in Laguna Niguel, CA

Q: What is William Steffan's NPI number?

The NPI number for William Steffan is 1790758431. It was assigned to this individual provider in the NPPES registry on February 13, 2006.

Q: What is William Steffan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for William Steffan was last updated on June 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since February 13, 2006

27231 LA PAZ RD, #A, LAGUNA NIGUEL, CA 92677(949) 643-9111(949) 643-8916 Get Directions Write a Review

NPPES record last updated: June 25, 2018. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About William C Steffan Md NPPES

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

WILLIAM C STEFFAN MD (NPI 1790758431) is an individual family medicine provider in Laguna Niguel, California, licensed in California (G42830) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1790758431

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameWILLIAM C STEFFANCredential: MD

Location Address27231 LA PAZ RD, #ALaguna Niguel, CA 92677

Mailing Address26522 La Alameda, Suite 120Mission Viejo, CA 92691-6330 · (949) 282-1671 · Fax (949) 367-0518

Phone(949) 643-9111

Fax(949) 643-8916

Sole ProprietorNo

Enumeration DateFebruary 13, 2006

Last NPPES UpdateJune 25, 2018

✔ NPI 1790758431 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · G42830

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

27231 LA PAZ RD, Laguna Niguel, CA 92677

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Other Providers at the Same Location NPPES 4

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

TIMOTHY P HUSTON MD

Family Medicine

27231 LA PAZ RD, #A
LAGUNA NIGUEL, CA 92677

Orange County (949) 643-9111

JIM W LAM M.D.

Family Medicine

27231 LA PAZ RD, SUITE A
LAGUNA NIGUEL, CA 92677

Orange County (949) 643-9111

JUSTINE A BELLO M.D.

Family Medicine

27231 LA PAZ RD, STE A
LAGUNA NIGUEL, CA 92677

Orange County (949) 643-9111

JOHN P MEEHAN III M.D.

General Practice

27231 LA PAZ RD, # A
LAGUNA NIGUEL, CA 92677

Orange County (949) 643-9111

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 Steffan's NPI number?

The NPI number for William Steffan is 1790758431. It was assigned to this individual provider in the NPPES registry on February 13, 2006.

Where is William Steffan located?

William Steffan practices at 27231 La Paz Rd #a, Laguna Niguel, CA 92677. The listed phone number is (949) 643-9111.

What is William Steffan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for William Steffan was last updated on June 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.