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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SPENCER KARL WILHELM MD
NPI 1952962912
Surgery in Orange, CA

Active since June 20, 2019PECOS Enrolled
1201 W LA VETA AVE, ORANGE, CA 92868(714) 364-4050(714) 364-4051 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jul 13, 2026, Jun 20, 2019 (2 updates tracked since 2019).

About Spencer Karl Wilhelm Md NPPES

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

SPENCER KARL WILHELM MD (NPI 1952962912) is an individual surgery provider in Orange, California, licensed in California (204915) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1952962912
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameSPENCER KARL WILHELMCredential: MD
Location Address1201 W LA VETA AVEOrange, CA 92868-4203
Mailing Address1201 W La Veta AveOrange, CA 92868-4203
Phone(714) 364-4050
Fax(714) 364-4051
Sole ProprietorYes
Enumeration DateJune 20, 2019
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPPES CertifiedJuly 13, 2026
✔ NPI 1952962912 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · 204915
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.
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 204915 (CA)
1201 W LA VETA AVE, Orange, CA 92868
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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)

Spencer Karl Wilhelm Md 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 92868 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

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.

TRISHA JACKSON
Social Worker
1201 W LA VETA AVE
ORANGE, CA 92868
Orange County (714) 509-8521
CHILDREN'S HOSPITAL OF ORANGE COUNTY
Neurological Surgery
1201 W LA VETA AVE
ORANGE, CA 92868
Orange County (714) 509-8649
JULIAN THOMAS MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1201 W LA VETA AVE
ORANGE, CA 92868
Orange County (714) 509-7601
DR. GEOFFREY CARSON CHENG MD
Pediatrics (Pediatric Hematology-Oncology)
1201 W LA VETA AVE
ORANGE, CA 92868
Orange County (714) 509-8636
BRIANNA JOY LEYDEN
Student in an Organized Health Care Education/Training Program
1201 W LA VETA AVE
ORANGE, CA 92868
Orange County (714) 997-3000
DR. MARNI CARMELA SWITKIN NAGEL PH.D.
Psychologist (Clinical Child & Adolescent)
1201 W LA VETA AVE, 503
ORANGE, CA 92868
Orange County (714) 532-8481
DR. DAINA DREIMANE MD
Pediatrics (Pediatric Endocrinology)
1201 W LA VETA AVE
ORANGE, CA 92868
Orange County (888) 770-2462
DR. SHARIEF KHALIL TARAMAN M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1201 W LA VETA AVE, CHILDREN'S HOSPITAL OF ORANGE COUNTY, NEUROLOGY
ORANGE, CA 92868
Orange County (714) 509-7601

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 Spencer Wilhelm's NPI number?

The NPI number for Spencer Wilhelm is 1952962912. It was assigned to this individual provider in the NPPES registry on June 20, 2019.

Where is Spencer Wilhelm located?

Spencer Wilhelm practices at 1201 W La Veta Ave, Orange, CA 92868. The listed phone number is (714) 364-4050.

What is Spencer Wilhelm's specialty?

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

Is Spencer Wilhelm enrolled in Medicare?

Yes. Spencer Wilhelm is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Spencer Wilhelm was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 days 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.