Katherine Tokarczyk, MD
NPI 1225492515 · Emergency Medicine Physician · Libertyville, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Tokarczyk, MD is a Emergency Medicine Physician provider in Libertyville, IL (NPI 1225492515).
Provider details
- NPI number
- 1225492515
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 81161 (WI)
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
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
730 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 | 462 | $183 |
| Critical Care, First 30-74 Minutes99291 | 118 | $220 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 106 | $7 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 44 | $126 |
Typical Medicare-allowed amounts for these services range $7–$220 (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 |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 37 | 37 |
| Naproxen | 25 | 24 |
| Methylprednisolone | 24 | 24 |
| Cephalexin | 23 | 23 |
| Dicyclomine Hcl | 17 | 16 |
| Baclofen | 13 | 12 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 13 | 13 |
| Famotidine | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-12
- Last updated
- 2023-11-17
- Certified
- 2023-11-17
Frequently asked questions
- What is Katherine Tokarczyk's NPI number?
- Katherine Tokarczyk's National Provider Identifier (NPI) is 1225492515, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Tokarczyk's specialty?
- Katherine Tokarczyk is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Tokarczyk located?
- Katherine Tokarczyk's practice location on file with NPPES is 801 S Milwaukee Ave, Libertyville, IL 60048-3204.
- What is Katherine Tokarczyk's phone number?
- The practice phone number listed in the NPPES registry for Katherine Tokarczyk is (847) 990-5300.
- Does Katherine Tokarczyk accept Medicare?
- Katherine Tokarczyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Tokarczyk's NPI active?
- Yes — Katherine Tokarczyk's NPI (1225492515) is active in the NPPES registry as of the last update on 2023-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.