Natalie Reizine, M.D.
NPI 1194106724 · Medical Oncology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Natalie Reizine, M.D. is a Medical Oncology Physician provider in Chicago, IL (NPI 1194106724).
Provider details
- NPI number
- 1194106724
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036146006 (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 tenure25% of score
11 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
172 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 64 | $123 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 32 | $150 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 31 | $101 |
| 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 | 30 | $17 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 15 | $179 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 141 | 20 |
| Prednisone | 136 | 25 |
| Apalutamidebrand: Erleada | 52 | — |
| Darolutamidebrand: Nubeqa | 35 | — |
| Loperamide Hclbrand: Loperamide | 21 | — |
| Tamsulosin Hcl | 16 | — |
| Amlodipine Besylate | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34,873 across 48 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)
- 1801 W Taylor StChicago, IL 60612-4795Phone: (312) 355-1625
Registry dates
- Enumerated
- 2015-06-09
- Last updated
- 2025-03-14
- Certified
- 2025-03-14
Frequently asked questions
- What is Natalie Reizine's NPI number?
- Natalie Reizine's National Provider Identifier (NPI) is 1194106724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natalie Reizine's specialty?
- Natalie Reizine is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Natalie Reizine located?
- Natalie Reizine's practice location on file with NPPES is 5841 S Maryland Ave # Mc3051, Chicago, IL 60637-1447.
- What is Natalie Reizine's phone number?
- The practice phone number listed in the NPPES registry for Natalie Reizine is (773) 702-6840.
- Does Natalie Reizine accept Medicare?
- Natalie Reizine is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Natalie Reizine's NPI active?
- Yes — Natalie Reizine's NPI (1194106724) is active in the NPPES registry as of the last update on 2025-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.