Mark S. Smyczynski, M.D.
Radiation Oncology Physician · Worcester, MA
Mark S. Smyczynski, M.D. is a radiation oncology physician with a practice address in Worcester, Massachusetts, and NPI 1871661603, issued on Dec 1, 2006. Check the license (Massachusetts 79962, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark S. Smyczynski
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 79962 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (774) 442-5551
- Enumerated
- Dec 1, 2006
- Record last updated
- Nov 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (774) 442-5006
- Medicaid ID
- 110056594A MA
- Medicare enrollment
- Enrolled (PECOS I20200206001592); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 241 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nawal Aamir, MDInternal Medicine Physician1588248926
- Amarys Abadie, CRNACertified Registered Nurse Anesthetist1992936843
- Paula Abate, NPNurse Practitioner1336265909
- Aly AbayazeedDiagnostic Radiology Physician1821221946
- Zainab AbbasDermatology Physician1609028000
- Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417
Verify Mark S. Smyczynski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 79962Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 97 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark S. Smyczynski among 241 radiation oncology physician records in Massachusetts
Mark S. Smyczynski, M.D. is one of 241 radiation oncology physician records with a practice address in Massachusetts. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1982 · median 2006 among the 172 with a school on file
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Massachusetts
There are 241 radiation oncology physician records in Massachusetts.
All 241 in Massachusetts → Every provider in Worcester → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Maria Cicchetti, M.D.Worcester, MA 016551174506752
- Thomas Fitzgerald, M.D.Worcester, MA 016551982688214
- Daniel Han, MDWorcester, MA 016551831192301
- Sidney Kadish, M.D.Worcester, MA 016551659355915
- Eric Ko, M.D., PH.D.Worcester, MA 016551639345929
- Lily Lawn-Tsao, M.D.Worcester, MA 016551083609911
- Richard Pieters, M.D.Worcester, MA 016551902888324
- Robert Stein, MDWorcester, MA 016551720063076
Common questions
What is Mark S. Smyczynski, M.D.'s NPI number?
Mark S. Smyczynski, M.D.'s National Provider Identifier (NPI) is 1871661603, issued on Dec 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Smyczynski, M.D. located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (774) 442-5551. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Smyczynski, M.D.'s license?
NPPES lists Massachusetts license number 79962, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Mark S. Smyczynski, M.D.'s MIPS final score?
The 2023 MIPS final score is 97 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.