Viktoriya Zelikson, MD
NPI 1538819974 · Hematology & Oncology Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Viktoriya Zelikson, MD is a Hematology & Oncology Physician provider in Chicago, IL (NPI 1538819974).
Provider details
- NPI number
- 1538819974
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology 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 tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 34 | 12 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 21 | — |
| Apixabanbrand: Eliquis | 21 | — |
| Lisinopril | 19 | — |
| Amlodipine Besylate | 18 | — |
| Pantoprazole Sodium | 17 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-03-28
- Last updated
- 2025-06-17
- Certified
- 2025-06-17
Frequently asked questions
- What is Viktoriya Zelikson's NPI number?
- Viktoriya Zelikson's National Provider Identifier (NPI) is 1538819974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Viktoriya Zelikson's specialty?
- Viktoriya Zelikson is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Viktoriya Zelikson located?
- Viktoriya Zelikson's practice location on file with NPPES is 251 E Huron St, Chicago, IL 60611-2908.
- What is Viktoriya Zelikson's phone number?
- The practice phone number listed in the NPPES registry for Viktoriya Zelikson is (312) 926-2000.
- Does Viktoriya Zelikson accept Medicare?
- Viktoriya Zelikson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Viktoriya Zelikson's NPI active?
- Yes — Viktoriya Zelikson's NPI (1538819974) is active in the NPPES registry as of the last update on 2025-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.