George A. Tjionas, MD
Clinical Pathology Physician · Worcester, MA
George A. Tjionas, MD is a clinical pathology physician with a practice address in Worcester, Massachusetts, and NPI 1982946307, issued on Mar 24, 2013. Check the license (Massachusetts 273014, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- George A. Tjionas
- Credential
- MD
- Primary taxonomy
- Clinical Pathology Physician 207ZC0006X
- License number
- 273014 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 793-6100
- Enumerated
- Mar 24, 2013
- Record last updated
- Mar 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (508) 793-6110
- Medicaid ID
- 110130297A MA
- Medicare enrollment
- Enrolled (PECOS I20180521002013); accepts Medicare assignment
- Entity
- Type 1 · individual
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 George A. Tjionas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 273014Check 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).
Clinical Pathology Physician providers in Massachusetts
There are 40 clinical pathology physician records in Massachusetts.
Other clinical pathology physician records in Massachusetts
- Melis Anahtar, MD, PHDBoston, MA1073033270
- Sankha Basu, M.D., PH.DBoston, MA1982028379
- Phoenix BellBoston, MA1235668641
- Allen Bryan, M.D., PH.D.Boston, MA1417214701
- Allison Carey, MD, PHDBoston, MA1891055844
- Mischa Covington, MD, PHDBoston, MA1063049997
- Gandhar DatarBoston, MA1396688024
- Daniel Ditoro, MD, PHDBoston, MA1376101758
- Jeffrey Gagan, M.D./PH.D.Boston, MA1265835839
- Georg Gerber, M.D., PH.D.Boston, MA1083856645
Common questions
What is George A. Tjionas, MD's NPI number?
George A. Tjionas, MD's National Provider Identifier (NPI) is 1982946307, issued on Mar 24, 2013. An NPI identifies a provider in billing; it is not a license.
Where is George A. Tjionas, MD located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 793-6100. Providers update this record themselves, so call before visiting.
How can I verify George A. Tjionas, MD's license?
NPPES lists Massachusetts license number 273014, 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 George A. Tjionas, MD'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.