NPPES file of Aug 9, 2026

Thomas Ludema, MD

Neurology Physician · Aliso Viejo, CA

Thomas Ludema, MD is a neurology physician with a practice address in Aliso Viejo, California, and NPI 1316953243, issued on Jul 31, 2006. Check the license (California G53135, 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
1316953243
Name
Thomas Ludema
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
G53135 CA
Self-reported in NPPES; status is on the state search
Practice location
24502 Pacific Park Dr Ste 102, Aliso Viejo, CA 92656
Phone
(949) 365-8877
Enumerated
Jul 31, 2006
Record last updated
Jun 10, 2025
Fax
(949) 365-8878
Medicaid ID
00G531350 CA
Medicare enrollment
Enrolled (PECOS I20110411000136); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 1982
Telehealth
Offers telehealth (CMS)
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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Verify Thomas Ludema in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G53135
    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

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10% fewer Medicare Part D claims than the average neurology physician in 2024

1,227 Medicare Part D claims for 213 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Thomas Ludema1,227
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl171 claims
  2. Gabapentin133 claims
  3. Carbidopa-Levodopa93 claims
  4. Escitalopram Oxalate77 claims
  5. Primidone70 claims
  6. Topiramate56 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 MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $159.72

6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Ludema$159.72
  2. Specialty average$8,318.07

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

Thomas Ludema among 2,339 neurology physician records in California

Thomas Ludema, MD is one of 2,339 neurology physician records with a practice address in California. 81% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1982 · median 2006 among the 1,628 with a school on file
  • Record last updated2025 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

The 8 neurology physician records with the nearest ZIP codes

  1. Mindy Bixby, D.O.Aliso Viejo, CA 926561508012139
  2. Kenneth Martinez, M.D.Aliso Viejo, CA 926561093825259
  3. Karen Cheng, M.D.Laguna Hills, CA 926531518163161
  4. Caroline Choan, MDLaguna Hills, CA 926531255352498
  5. Mishel Farasatpour, MDLaguna Hills, CA 926531841533767
  6. Kiet Loc, M.D.Laguna Hills, CA 926531609041581
  7. William Preston, MDLaguna Hills, CA 926531376583922
  8. Michael Shen, MDLaguna Hills, CA 926531154402238

Common questions

What is Thomas Ludema, MD's NPI number?

Thomas Ludema, MD's National Provider Identifier (NPI) is 1316953243, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Ludema, MD located?

The NPPES record lists a practice address at 24502 Pacific Park Dr Ste 102, Aliso Viejo, CA, 92656. Phone: (949) 365-8877. Providers update this record themselves, so call before visiting.

How can I verify Thomas Ludema, MD's license?

NPPES lists California license number G53135, 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 Thomas Ludema, MD prescribe under Medicare Part D?

In 2024, Thomas Ludema, MD had 1,227 Medicare Part D claims for 213 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Thomas Ludema, MD's MIPS final score?

The 2023 MIPS final score is 0 of 100. 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.