Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. JAMES ERIC WIEDEMAN M.D.
NPI 1780667345
Surgery in Mather, CA

Q: What is James Wiedeman's NPI number?

The NPI number for James Wiedeman is 1780667345. It was assigned to this individual provider in the NPPES registry on November 28, 2005.

Q: What is James Wiedeman's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for James Wiedeman was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since November 28, 2005PECOS Enrolled

10535 HOSPITAL WAY, MATHER, CA 95655(916) 843-7222(916) 366-5475 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

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About Dr. James Eric Wiedeman M.d. NPPES

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

DR. JAMES ERIC WIEDEMAN M.D. (NPI 1780667345) is an individual surgery provider in Mather, California, licensed in California (G77763) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780667345

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. JAMES ERIC WIEDEMANCredential: M.D.

Location Address10535 HOSPITAL WAYMather, CA 95655-4200

Mailing Address419 Heron PlDavis, CA 95616-7512 · (530) 759-0726 · Fax (916) 366-5482

Phone(916) 843-7222

Fax(916) 366-5475

Sole ProprietorNo

Enumeration DateNovember 28, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1780667345 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in CA · G77763

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

10535 HOSPITAL WAY, Mather, CA 95655

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Eric Wiedeman 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 95655 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

$92.61 typical visit price

range $60.44 – $180.85

Typical copayment $23.15 (range $15.11 – $45.21)

Most-billed visit code 99203

Established Patient

$75.03 typical visit price

range $19.88 – $148.15

Typical copayment $18.75 (range $4.97 – $37.03)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.