Michael Liu, MD
NPI 1851402721 · Neurology Physician · Alton, IL
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Liu, MD is a Neurology Physician provider in Alton, IL (NPI 1851402721).
Provider details
- NPI number
- 1851402721
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- T2004015403 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,183 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 247 | $168 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 217 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 203 | $123 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 130 | $54 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 104 | $43 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Memantine Hcl | 338 | 78 |
| Donepezil Hcl | 256 | 71 |
| Topiramate | 212 | 63 |
| Levetiracetam | 151 | 47 |
| Gabapentin | 127 | 31 |
| Amitriptyline Hcl | 92 | 27 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 89 | 28 |
| Primidone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,103 across 68 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 11155 Dunn Rd Ste 109nSaint Louis, MO 63136-6148Phone: (618) 465-8666
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2021-03-25
- Certified
- 2021-03-25
Frequently asked questions
- What is Michael Liu's NPI number?
- Michael Liu's National Provider Identifier (NPI) is 1851402721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Liu's specialty?
- Michael Liu is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Liu located?
- Michael Liu's practice location on file with NPPES is 4 Memorial Dr Ste 230, Alton, IL 62002-6751.
- What is Michael Liu's phone number?
- The practice phone number listed in the NPPES registry for Michael Liu is (618) 465-8666.
- Does Michael Liu accept Medicare?
- Michael Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Liu's NPI active?
- Yes — Michael Liu's NPI (1851402721) is active in the NPPES registry as of the last update on 2021-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.