NPPES file of Aug 9, 2026

Michael Xiaozhong Liu, MD

Neurology Physician · Alton, IL

Michael Xiaozhong Liu, MD is a neurology physician with a practice address in Alton, Illinois, and NPI 1851402721, issued on Aug 31, 2006. Check the license (Illinois 036-122583, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1851402721
Name
Michael Xiaozhong Liu
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
036-122583 IL
2010011913 MO
T2004015403 MO
Self-reported in NPPES; status is on the state search
Practice location
4 Memorial Dr Ste 230, Alton, IL 62002
Phone
(618) 465-8666
Enumerated
Aug 31, 2006
Record last updated
Mar 25, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(618) 465-8670
Medicare enrollment
Enrolled (PECOS I20090812000094); accepts Medicare assignment
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 4 Memorial Dr Ste 230

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

  1. Christopher Aldridge, M.D.Surgery Physician1104026707
  2. Chase Baxter, DOPulmonary Disease Physician1487145264
  3. Audrey Brennan, FNP-CNurse Practitioner1679231690
  4. Brandy Byrd, FNPNurse Practitioner1902217540
  5. Emily Cottrell, FNP-BCNurse Practitioner1295262459
  6. Kaycee Eyers, FNPFamily Nurse Practitioner1750818522

Verify Michael Xiaozhong Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-122583
    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 Illinois license search

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75% more Medicare Part D claims than the average neurology physician in 2024

2,397 Medicare Part D claims for 431 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Michael Liu2,397
  2. Specialty average1,370

Most prescribed

  1. Memantine Hcl338 claims
  2. Donepezil Hcl256 claims
  3. Topiramate212 claims
  4. Levetiracetam151 claims
  5. Gabapentin127 claims
  6. Amitriptyline Hcl92 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.

Industry payments in 2024: $1,103.44

68 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. Michael Liu$1,103.44
  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.

Bills Medicare through one group practice

  1. Fairview Heights Medical Group SCAlton, IL

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

Michael Xiaozhong Liu among 952 neurology physician records in Illinois

Michael Xiaozhong Liu, MD is one of 952 neurology physician records with a practice address in Illinois. 79% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 68% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1989 · median 2006 among the 573 with a school on file
  • Record last updated2021 · 42% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Illinois

There are 952 neurology physician records in Illinois.

The 8 neurology physician records with the nearest ZIP codes

  1. Ajitesh Rai, M.D.Alton, IL 620021205883097
  2. Mohammad Sajed, M.D.Alton, IL 620021396785127
  3. Karna Sherwood, MDAlton, IL 620021619105293
  4. Arbha Vongsvivut, MDAlton, IL 620021639206154
  5. Riaz Naseer, M.D.Maryville, IL 620621245345537
  6. Sajjan Nemani, MDMaryville, IL 620621649220542
  7. Fatima Alao, M.D.Mattoon, IL 619381700047917
  8. Maria Lawless, M.D.Mattoon, IL 619381457888646

Common questions

What is Michael Xiaozhong Liu, MD's NPI number?

Michael Xiaozhong Liu, MD's National Provider Identifier (NPI) is 1851402721, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Xiaozhong Liu, MD located?

The NPPES record lists a practice address at 4 Memorial Dr Ste 230, Alton, IL, 62002. Phone: (618) 465-8666. Providers update this record themselves, so call before visiting.

How can I verify Michael Xiaozhong Liu, MD's license?

NPPES lists Illinois license number 036-122583, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael Xiaozhong Liu, MD prescribe under Medicare Part D?

In 2024, Michael Xiaozhong Liu, MD had 2,397 Medicare Part D claims for 431 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

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.