NPPES file of Aug 9, 2026

William Campbell Wallace, M.D.

Surgery Physician · Laguna Hills, CA

William Campbell Wallace, M.D. is a surgery physician with a practice address in Laguna Hills, California, and NPI 1528088960, issued on Jul 20, 2006. Check the license (California A66100, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528088960
Name
William Campbell Wallace
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
A66100 CA
Self-reported in NPPES; status is on the state search
Practice location
24411 Health Center Dr, Laguna Hills, CA 92653
Phone
(949) 457-7900
Enumerated
Jul 20, 2006
Record last updated
Feb 9, 2026
Fax
(949) 588-8719
Medicare enrollment
Enrolled (PECOS I20110103000563); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 1996
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 24411 Health Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Melissa Alexander, CNMAdvanced Practice Midwife1972043826
  2. Niren Angle, M.D.Vascular Surgery Physician1720045412
  3. Albert Antonio, D.O.Neonatal-Perinatal Medicine Physician1689094518
  4. Blake Ashley, M.D.Surgery Physician1235150079
  5. Margaret Audell, MDObstetrics & Gynecology Physician1487602199
  6. Henry Bruce, M.D.Specialist1114920535

Verify William Campbell Wallace in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A66100
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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8% fewer Medicare Part D claims than the average surgery physician in 2024

135 Medicare Part D claims for 94 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 70 claims were for opioids.

  1. William Wallace135
  2. Specialty average147

Most prescribed

  1. Hydrocodone-Acetaminophen50 claims
  2. Tramadol Hcl17 claims
  3. Diphenoxylate-Atropine16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.8
  2. Costout of 100 · 30%64.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $254.07

5 payments; by number, the most common kind was food and beverage; the largest payer was Davol Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Wallace$254.07
  2. Specialty average$3,513.80

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. South Orange County Surgical Medical Group IncLaguna Hills, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Campbell Wallace among 3,118 surgery physician records in California

William Campbell Wallace, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1996 · median 2003 among the 1,901 with a school on file
  • Record last updated2026 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in California

There are 3,118 surgery physician records in California.

The 8 surgery physician records with the nearest ZIP codes

  1. Blake Ashley, M.D.Laguna Hills, CA 926531235150079
  2. Amy Bremner, MDLaguna Hills, CA 926531649461120
  3. Kenneth Deck, M.D.Laguna Hills, CA 926531871516765
  4. Nora Evans, M.D.Laguna Hills, CA 926531770509291
  5. Jacqueline Golsch, RNFALaguna Hills, CA 926531679497622
  6. Anna Houterman, MDLaguna Hills, CA 926531164637435
  7. Elvira Klause, M.DLaguna Hills, CA 926531518904580
  8. Chirag Patel, M.D.Laguna Hills, CA 926531598785891

Common questions

What is William Campbell Wallace, M.D.'s NPI number?

William Campbell Wallace, M.D.'s National Provider Identifier (NPI) is 1528088960, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Campbell Wallace, M.D. located?

The NPPES record lists a practice address at 24411 Health Center Dr, Laguna Hills, CA, 92653. Phone: (949) 457-7900. Providers update this record themselves, so call before visiting.

How can I verify William Campbell Wallace, M.D.'s license?

NPPES lists California license number A66100, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Campbell Wallace, M.D. prescribe under Medicare Part D?

In 2024, William Campbell Wallace, M.D. had 135 Medicare Part D claims for 94 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

What is William Campbell Wallace, M.D.'s MIPS final score?

The 2023 MIPS final score is 86.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.