Katherine Januszewicz, MD
NPI 1255795290 · Emergency Medicine Physician · Las Vegas, NV
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Januszewicz, MD is a Emergency Medicine Physician provider in Las Vegas, NV (NPI 1255795290).
Provider details
- NPI number
- 1255795290
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
202 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 Moderate Level of Medical Decision Making99284 | 97 | $117 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 72 | $170 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 17 | $8 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 16 | $69 |
Typical Medicare-allowed amounts for these services range $8–$170 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 23 | 23 |
| Cefdinir | 23 | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | 16 |
| Azithromycin | 16 | 16 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 15 | 15 |
| Methylprednisolone | 15 | 15 |
| Ondansetron |
Practice location
Mailing address
Additional practice locations (1)
- 2150 Pennsylvania Ave NwWashington, DC 20037-3201Phone: (202) 741-3000
Registry dates
- Enumerated
- 2016-04-06
- Last updated
- 2025-07-28
- Certified
- 2025-07-28
Frequently asked questions
- What is Katherine Januszewicz's NPI number?
- Katherine Januszewicz's National Provider Identifier (NPI) is 1255795290, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Januszewicz's specialty?
- Katherine Januszewicz is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Januszewicz located?
- Katherine Januszewicz's practice location on file with NPPES is 3186 S Maryland Pkwy, Las Vegas, NV 89109-2306.
- What is Katherine Januszewicz's phone number?
- The practice phone number listed in the NPPES registry for Katherine Januszewicz is (702) 961-5000.
- Does Katherine Januszewicz accept Medicare?
- Katherine Januszewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Januszewicz's NPI active?
- Yes — Katherine Januszewicz's NPI (1255795290) is active in the NPPES registry as of the last update on 2025-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.