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WILLIAM JAMES PETERSON M.D.
NPI 1841236072
Emergency Medicine in Vacaville, CA

Active since June 22, 2006PECOS Enrolled
VACAVALLEY HOSPITAL, 1000 NUT TREE ROAD, VACAVILLE, CA 95687(707) 446-4000 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About William James Peterson M.d. NPPES

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

WILLIAM JAMES PETERSON M.D. (NPI 1841236072) is an individual emergency medicine provider in Vacaville, California, licensed in California (G56798) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841236072
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameWILLIAM JAMES PETERSONCredential: M.D.
Location AddressVACAVALLEY HOSPITAL, 1000 NUT TREE ROADVacaville, CA 95687
Mailing Address1528 Shannon CtBenicia, CA 94510-2737
Phone(707) 446-4000
Sole ProprietorNo
Enumeration DateJune 22, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1841236072 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · G56798
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
VACAVALLEY HOSPITAL, Vacaville, CA 95687
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Other Identifiers 3

Medicaid00G567981CA
Medicare UPINA53189CA
Medicare ID-Type Unspecified00G567980CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William James Peterson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95687 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$98.85 typical visit price
range $65.02 – $191.95
Typical copayment $24.71 (range $16.25 – $47.98)
Most-billed visit code 99203
Established Patient
$113.05 typical visit price
range $21.86 – $157.69
Typical copayment $28.26 (range $5.46 – $39.42)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

MILAGROS ARLENE GOMEZ PA-C
Emergency Medicine
VACAVALLEY HOSPITAL, 1000 NUT TREE ROAD
VACAVILLE, CA 95687
Solano County (707) 446-4000

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 Peterson's NPI number?

The NPI number for William Peterson is 1841236072. It was assigned to this individual provider in the NPPES registry on June 22, 2006.

Where is William Peterson located?

William Peterson practices at Vacavalley Hospital 1000 Nut Tree Road, Vacaville, CA 95687. The listed phone number is (707) 446-4000.

What is William Peterson's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is William Peterson enrolled in Medicare?

Yes. William Peterson is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Peterson was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.