Gregory Wu, MD
NPI 1558426619 · Neurology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Wu, MD is a Neurology Physician provider in Saint Louis, MO (NPI 1558426619).
Provider details
- NPI number
- 1558426619
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2009014121 (MO)
Specialties & taxonomies
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
47 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 25 | $155 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 22 | $15 |
Typical Medicare-allowed amounts for these services range $15–$155 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Baclofen | 57 | 14 |
| Dalfampridinebrand: Dalfampridine Er | 51 | — |
| Gabapentin | 37 | — |
| Immun Globg(igg)/Malt/Iga Ov50brand: Octagam | 36 | — |
| Dimethyl Fumarate | 30 | — |
| Teriflunomide | 26 | — |
| Pregabalin | 25 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,665 across 9 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)
- 915 N Grand BlvdSaint Louis, MO 63106-1621Phone: (314) 652-4100
Registry dates
- Enumerated
- 2006-12-27
- Last updated
- 2026-02-03
- Certified
- 2026-02-03
Frequently asked questions
- What is Gregory Wu's NPI number?
- Gregory Wu's National Provider Identifier (NPI) is 1558426619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Wu's specialty?
- Gregory Wu is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Wu located?
- Gregory Wu's practice location on file with NPPES is 4921 Parkview Pl, Saint Louis, MO 63110-1032.
- What is Gregory Wu's phone number?
- The practice phone number listed in the NPPES registry for Gregory Wu is (314) 362-3293.
- Does Gregory Wu accept Medicare?
- Gregory Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Wu's NPI active?
- Yes — Gregory Wu's NPI (1558426619) is active in the NPPES registry as of the last update on 2026-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.