William Maloney, M.D.
NPI 1609810548 · Emergency Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Maloney, M.D. is a Emergency Medicine Physician provider in Milwaukee, WI (NPI 1609810548).
Provider details
- NPI number
- 1609810548
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-081099 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
934 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 359 | $175 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 317 | $120 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 113 | $70 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 88 | $8 |
| Critical Care, First 30-74 Minutes99291 | 38 | $209 |
| Emergency Department Visit With Straightforward Medical Decision Making99282 | 19 | $41 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 118 | 116 |
| Tramadol Hcl | 55 | 52 |
| Cephalexin | 47 | 47 |
| Methylprednisolone | 42 | 40 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 28 | 28 |
| Azithromycin | 26 | 26 |
| Cyclobenzaprine Hcl | 18 |
Practice location
Mailing address
Additional practice locations (1)
- 16 Canterbury CtWilmette, IL 60091-2822Phone: (847) 970-8631
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2021-12-22
- Certified
- 2021-12-22
Frequently asked questions
- What is William Maloney's NPI number?
- William Maloney's National Provider Identifier (NPI) is 1609810548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Maloney's specialty?
- William Maloney is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Maloney located?
- William Maloney's practice location on file with NPPES is 111 E Wisconsin Ave, Milwaukee, WI 53202-4815.
- What is William Maloney's phone number?
- The practice phone number listed in the NPPES registry for William Maloney is (414) 290-6720.
- Does William Maloney accept Medicare?
- William Maloney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Maloney's NPI active?
- Yes — William Maloney's NPI (1609810548) is active in the NPPES registry as of the last update on 2021-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.