DR. WILLIAM CAMPBELL WALLACE M.D.
NPI 1528088960
Surgery in Laguna Hills, CA

Q: What is William Wallace's NPI number?

The NPI number for William Wallace is 1528088960. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Q: What is William Wallace'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 William Wallace was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 July 20, 2006PECOS EnrolledAccepts Medicare Assignment

86.06/100

CMS Quality Rating

24411 HEALTH CENTER DR, SUITE 350, LAGUNA HILLS, CA 92653(949) 457-7900(949) 588-8719 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. William Campbell Wallace M.d. NPPES

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

DR. WILLIAM CAMPBELL WALLACE M.D. (NPI 1528088960) is an individual surgery provider in Laguna Hills, California, licensed in California (A66100) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Vermont College Of Medicine (1996).

NPPES Registry Identity

NPI1528088960

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. WILLIAM CAMPBELL WALLACECredential: M.D.

Location Address24411 HEALTH CENTER DR, SUITE 350Laguna Hills, CA 92653-3651

Mailing Address24411 Health Center Dr Ste 350Laguna Hills, CA 92653-3687 · (949) 457-7900 · Fax (949) 588-8719

Phone(949) 457-7900

Fax(949) 588-8719

Sole ProprietorNo

Medical School CMSUniversity Of Vermont College Of MedicineGraduated 1996

Enumeration DateJuly 20, 2006

Last NPPES UpdateFebruary 9, 2026

NPPES CertifiedFebruary 9, 2026

✔ NPI 1528088960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in CA · A66100

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.

24411 HEALTH CENTER DR, Laguna Hills, CA 92653

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William Campbell Wallace M.d. 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 ID4183511009

PECOS Enrollment IDI20110103000563

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.

Medicare Billing Reassignments

Medicare enrollment records show William Wallace reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

South Orange County Surgical Medical Group, Inc.

Same address

Surgery

24411 HEALTH CENTER DR, SUITE 350
Laguna Hills, CA 92653

Reassigned Medicare billing, California enrollment
22 clinicians in this Medicare group

NPI 1407860844 (949) 457-7900

Oc Trauma Inc

4.1 mi

Trauma Surgery

26732 CROWN VALLEY PKWY STE 440
Mission Viejo, CA 92691

Reassigned Medicare billing, California enrollment
28 clinicians in this Medicare group

NPI 1720516628 (949) 364-1007

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 14

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

84 services40 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

76 services48 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

70 services70 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

55 services51 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

48 services31 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

38 services33 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

27 services21 patients

Removal of growth of sperm cord 55520

This procedure involves the removal of an abnormal growth located in the cord that carries vital substances to the reproductive system. It's a simple operation, usually performed under local or general anesthesia. The goal is to maintain normal function while ensuring your comfort and safety.

25 services25 patients

Repair of groin hernia (5 years or older) 49505

Repair of a groin hernia is a procedure aimed at fixing an abnormal bulge that can occur in the area between your abdomen and thigh. This condition happens when tissue pushes through a weak spot in your lower abdominal wall. The repair procedure returns this tissue back to its proper place.

19 services19 patients

Diagnostic exam of anus using an endoscope 46600

This procedure involves using a thin, flexible instrument called an endoscope to examine the anal area. It helps detect any abnormal conditions or issues. It's a safe, routine exam performed by a healthcare professional.

17 services12 patients

Repair of trapped groin hernia (5 years or older) 49507

A trapped groin hernia repair is a procedure to fix an issue where part of your intestine or fat pushes through a weak spot in your lower abdominal wall, causing discomfort. The surgery puts these back in place and strengthens the weak area to prevent recurrence.

14 services14 patients

Removal of gallbladder with x-ray study of bile ducts using an endoscope 47563

This procedure, known as an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible camera (endoscope) to examine your bile ducts. If gallstones are found, your gallbladder may be removed in a separate procedure. This helps prevent future complications.

13 services13 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

13 services13 patients

Diagnostic exam of rectum and lower large bowel using an endoscope 45300

This procedure, known as a sigmoidoscopy, involves using a thin, flexible instrument called an endoscope to examine your lower large bowel and rectum. This helps in identifying any abnormalities or issues that could affect your digestive health.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92653 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.06/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

80.77

Promoting Interoperability

100

Improvement Activities

Cost

64.07

Reported Quality Measures

Advance Care Plan

0%667 patients1/55-star benchmark: 100%

Closing the Referral Loop: Receipt of Specialist Report

20%51 patients1/55-star benchmark: 87%

Documentation of Current Medications in the Medical Record

76%1,724 patients3/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

0%446 patients1/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

33%890 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

20%1,220 patients2/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 89% · 506 patients

89%506 patients

Provide Patients Electronic Access to Their Health Information

83%554 patients4/55-star benchmark: 100%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 483 patients

Patients totalRate: 0% · 483 patients

0%483 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

LISA L. MAJER D.O

Family Medicine

24411 HEALTH CENTER DR, #510
LAGUNA HILLS, CA 92653

Orange County (949) 452-7525

STEPHANIE PFANNENSTIEL N.P.

Licensed Practical Nurse

24411 HEALTH CENTER DR, SUITE 200
LAGUNA HILLS, CA 92653

Orange County (949) 829-5500

DR. WANG TENG M.D.

Surgery (Vascular Surgery)

24411 HEALTH CENTER DR, SUITE 350
LAGUNA HILLS, CA 92653

Orange County (949) 457-7900

ERICK LEOPOLDO MONTERO M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

24411 HEALTH CENTER DR, SUITE 680
LAGUNA HILLS, CA 92653

Orange County (949) 268-4568

ROBBIN GONZALES PA-C

Physician Assistant (Surgical)

24411 HEALTH CENTER DR, STE 350
LAGUNA HILLS, CA 92653

Orange County (949) 457-7900

ANN MARIE RAFFO MD

Obstetrics & Gynecology

24411 HEALTH CENTER DR, SUITE 200
LAGUNA HILLS, CA 92653

Orange County (949) 829-5500

HENRY CHENG MD INC

Clinic/Center (Health Service)

24411 HEALTH CENTER DR, SUITE 530
LAGUNA HILLS, CA 92653

Orange County (949) 951-1969

DR. LINDA H CHUNG M.D.

Obstetrics & Gynecology

24411 HEALTH CENTER DR, SUITE 640
LAGUNA HILLS, CA 92653

Orange County (949) 770-4115

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 Wallace's NPI number?

The NPI number for William Wallace is 1528088960. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is William Wallace located?

William Wallace practices at 24411 Health Center Dr Suite 350, Laguna Hills, CA 92653. The listed phone number is (949) 457-7900.

What is William Wallace's specialty?

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

Is William Wallace enrolled in Medicare?

Yes. William Wallace is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Wallace's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Wallace reassigns Medicare benefits to 2 organizations: South Orange County Surgical Medical Group, Inc. (Laguna Hills, CA) and Oc Trauma Inc (Mission Viejo, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Wallace's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Wallace was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.