Sidney Kadish, M.D.
NPI 1659355915 · Radiation Oncology Physician · Worcester, MA
Sidney Kadish, M.D. is a Radiation Oncology Physician provider in Worcester, MA (NPI 1659355915).
Provider details
- NPI number
- 1659355915
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 31017 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
5 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (4)
- 736 Cambridge StBoston, MA 02135-2907Phone: (617) 789-3000
- 275 Nichols RdFitchburg, MA 01420-1919Phone: (978) 343-5196
- 70 Walnut StFoxboro, MA 02035-5312Phone: (508) 698-3288
- 70 East StMethuen, MA 01844-4597Phone: (978) 687-0156
Registry dates
- Enumerated
- 2005-12-01
- Last updated
- 2020-11-16
- Certified
- 2020-11-16
Frequently asked questions
- What is Sidney Kadish's NPI number?
- Sidney Kadish's National Provider Identifier (NPI) is 1659355915, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sidney Kadish's specialty?
- Sidney Kadish is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sidney Kadish located?
- Sidney Kadish's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is Sidney Kadish's phone number?
- The practice phone number listed in the NPPES registry for Sidney Kadish is (774) 442-5551.
- Is Sidney Kadish's NPI active?
- Yes — Sidney Kadish's NPI (1659355915) is active in the NPPES registry as of the last update on 2020-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.