Eric Ko, M.D., PH.D.
NPI 1639345929 · Radiation Oncology Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Ko, M.D., PH.D. is a Radiation Oncology Physician provider in Worcester, MA (NPI 1639345929).
Provider details
- NPI number
- 1639345929
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 281642 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,398 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) |
|---|---|---|
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 454 | $20 |
| Calculation of Radiation Therapy Dose77300 | 211 | $32 |
| Design and Construction of Complex Radiation Treatment Device77334 | 173 | $60 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 104 | $191 |
| Complex Radiation Therapy Planning77263 | 72 | $167 |
| 3d Radiation Therapy Planning77295 | 55 | $225 |
| Obtaining Data Needed to Develop the Optimal Radiation Treatment, 3 Or More Treatment Areas Or Any Number of Treatment Areas Where Special Treatment Is Involved |
Practice location
Mailing address
Additional practice locations (1)
- 33 Kendall StWorcester, MA 01605-2726Phone: (508) 334-6550Fax: (508) 334-5624
Registry dates
- Enumerated
- 2008-05-06
- Last updated
- 2020-11-13
- Certified
- 2020-11-13
Frequently asked questions
- What is Eric Ko's NPI number?
- Eric Ko's National Provider Identifier (NPI) is 1639345929, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Ko's specialty?
- Eric Ko is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Ko located?
- Eric Ko's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is Eric Ko's phone number?
- The practice phone number listed in the NPPES registry for Eric Ko is (774) 442-5551.
- Does Eric Ko accept Medicare?
- Eric Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Ko's NPI active?
- Yes — Eric Ko's NPI (1639345929) is active in the NPPES registry as of the last update on 2020-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.