James Ruffer, M.D.
NPI 1679564629 · Radiation Oncology Physician · Chicago, IL
Provider details
- NPI number
- 1679564629
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036099331 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,301 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 369 | $45 |
| Calculation of Radiation Therapy Dose77300 | 155 | $33 |
| Design and Construction of Complex Radiation Treatment Device77334 | 143 | $61 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 142 | $194 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 82 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 59 | $98 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$64 across 3 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 (2)
- 27750 W Highway 22Suite G-50Barrington, IL 60010-2379Phone: (847) 842-0300Fax: (847) 842-0370
- 801 S Milwaukee AveLibertyville, IL 60048-3204Phone: (847) 990-5910
Registry dates
- Enumerated
- 2005-10-31
- Last updated
- 2021-12-27
- Certified
- 2021-12-27
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.