H
Free Clinics Directory
DirectoryServicesCliniciansResourcesBlogFAQ
Sign In
Home/Clinicians/Family Medicine/William Nation
Services
WN

William Nation, M.D.

Family Medicine

GenderMaleNPI1558438622Affiliated sites1

Affiliated Health Centers

William Nation is affiliated with 1 federally qualified health center location.

Castle Family Health Center at Winton

6029 N Winton Way, Winton, CA 95388-9515

Medicare★ 2.7 Google (192)
View clinic →

Primary Care Services

Preventive care, chronic disease management, and routine health services for all ages.

Annual physicals
Chronic disease management
Immunizations
Preventive screenings
Acute illness care
Hypertension & diabetes management
Referral coordination
Browse all Primary Care clinics →

Related Clinicians

Other Clinicians at These Health Centers

JM

Jaime Morga

Family NP

JS

Jorge Salmeron Bernal, FNP

Nurse Practitioner

HP

Henry Pratt, P.A.

Medical PA

LM

Lorena Magana, PA-C

Medical PA

RH

Robert Horvat, MD, PHD

Emergency Medicine

AC

Adrian Carreon, M.D.

Internal Medicine

Other Family Medicine Clinicians

JH

Joseph Hunter, MD

Family Medicine

SS

Stephen Seltzer, MD

Family Medicine

CK

Charles Kratz, M.D.

Family Medicine

BS

Brian Schmidt, D.O.

Family Medicine

CA

Christina Adams, M.D.

Family Medicine

RL

Randall Longenecker, M.D.

Family Medicine

View all Family Medicine clinicians →
Clinician information is sourced from the NPPES National Provider Registry (February 2026) and reflects self-reported practice locations. Individual providers may have joined or left since the last registry update.

Verify on NPI Registry

Confirm current license and practice information on the official CMS NPI registry.

View NPI Record

Family Medicine

Providing family medicine services at federally qualified health centers with sliding fee scale options.

View services →

Affiliated Health Center

Castle Family Health Center at Winton

View quality scores & reviews →

Browse

All clinicians →Family Medicine clinicians →Browse health centers →

Going to a Community Health Center?

These clinics charge based on what you earn, and are funded to serve people who cannot pay much.

Who can be seen here →What a visit costs →What to bring to your first visit →What is an FQHC? →