Ajaz M. Khan, M.D.
Internal Medicine · Medical Oncology (CMS) · Zion, IL
At a glance
Cancer Treatment Centers Of America, Zion, IL 60099
NPPES record updated Mar 26, 2022. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
Cancer Treatment Centers Of America 2520 Elisha AvenueZion, IL 60099
Additional reported practice locations
5666 East State StreetRockford, IL 611082472
Phone: 8152262000 2215 Burdett Ave
Troy, NY 121802466
Phone: 5182713775 1 Tallow Wood Dr
Clifton Park, NY 120652807
Phone: 5182685060 5666 East State Street
Rockford, IL 611082472
Phone: 8152262000
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2002
- CMS specialties
- Internal Medicine · Medical Oncology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Humboldt Park Health Chicago, IL
- Midwestern Region Med Center, Inc Zion, IL
- Northwestern Medicine Central Dupage Hospital Winfield, IL
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Consulting fee | $4,130.00 |
| Food and beverage | $251.56 |
Reporting companies
| Company | Amount |
|---|---|
| ASTRAZENECA PHARMACEUTICALS LP | $2,345.00 |
| TAKEDA PHARMACEUTICALS U.S.A., INC. | $1,785.00 |
| JANSSEN RESEARCH & DEVELOPMENT, LLC | $150.00 |
| FENNEC PHARMACEUTICALS, INC. | $40.80 |
| GILEAD SCIENCES, INC. | $33.59 |
| DAIICHI SANKYO INC. | $27.17 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Internal Medicine · Medical Oncology (CMS)
- Taxonomy code
- 207RH0003X
- Enumeration date
- Apr 15, 2008
- Record updated
- Mar 26, 2022
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207RH0003X
License reported: 238121 NY
207RH0003X · Primary
License reported: 036-122000 IL
207RH0003X
License reported: MA082147 NJ
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
Cancer Treatment Centers Of America2520 Elisha Avenue
Zion, IL 60099
- Phone
- (800) 322-9183
Mailing address
CANCER TREATMENT CENTERS OF AMERICA2361 PAYSPHERE CIRCLE
CHICAGO, IL 60674
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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