WILLIAM CHARLES FOX MD
NPI 1629465638
Anesthesiology in Sacramento, CA

Q: What is William Fox's NPI number?

The NPI number for William Fox is 1629465638. It was assigned to this individual provider in the NPPES registry on April 17, 2015.

Q: What is William Fox's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for William Fox was last updated on January 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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 April 17, 2015PECOS EnrolledAccepts Medicare Assignment

3315 WATT AVE, SACRAMENTO, CA 95821(916) 481-6800(916) 481-1881 Get Directions Write a Review

NPPES record last updated: January 15, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 15, 2026, Jul 9, 2024, Nov 10, 2022 and 1 more (4 updates tracked since 2020).

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About William Charles Fox Md NPPES

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

WILLIAM CHARLES FOX MD (NPI 1629465638) is an individual anesthesiology provider in Sacramento, California, licensed in California (C205991) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1629465638

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameWILLIAM CHARLES FOXCredential: MD

Location Address3315 WATT AVESacramento, CA 95821-3600

Mailing Address3315 Watt AveSacramento, CA 95821-3600 · (916) 481-6800 · Fax (916) 481-1881

Phone(916) 481-6800

Fax(916) 481-1881

Sole ProprietorYes

Medical School CMSOtherGraduated 2013

Enumeration DateApril 17, 2015

Last NPPES UpdateJanuary 15, 20264 updates tracked since enumeration

NPPES CertifiedJanuary 15, 2026

✔ NPI 1629465638 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Licenses✔ Licensed in CA · C205991✔ Licensed in HI · MD-22875

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

3315 WATT AVE, Sacramento, CA 95821

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, Medica, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Charles Fox Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2062826167

PECOS Enrollment IDI20260205002175

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

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

DR. J DAVID D'AMELIO M.D.

Anesthesiology