John J. Kadzielski, MD
Orthopaedic Hand Surgery Physician · Quincy, MA
John J. Kadzielski, MD is an orthopaedic hand surgery physician with a practice address in Quincy, Massachusetts, and NPI 1053448498, issued on Feb 27, 2007. Check the license (Massachusetts 239683, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John J. Kadzielski
- Credential
- MD
- Primary taxonomy
- Orthopaedic Hand Surgery Physician 207XS0106X
- License numbers
- 239683 MA
L-228167 MA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Congress St Ste 304, Quincy, MA 02169
- Phone
- (617) 773-2200
- Enumerated
- Feb 27, 2007
- Record last updated
- Oct 23, 2025
- Fax
- (617) 773-2202
- Medicaid ID
- 110088698A MA
- Medicare enrollment
- Enrolled (PECOS I20110815000542); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest orthopaedic hand surgery physician records → All 75 in Massachusetts → Look up another NPI →
Also registered at 300 Congress St Ste 304
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kimberly Belina, PA-CPhysician Assistant1477938298
Verify John J. Kadzielski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 239683Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average orthopaedic hand surgery physician in 2024
58 Medicare Part D claims for 43 beneficiaries, against an average of 186 among the 2,203 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 69 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- John Kadzielski MD PLLCQuincy, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John J. Kadzielski among 75 orthopaedic hand surgery physician records in Massachusetts
John J. Kadzielski, MD is one of 75 orthopaedic hand surgery physician records with a practice address in Massachusetts. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.
- NPI issued2007 · 53% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2006 · median 2003 among the 53 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0106X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Hand Surgery Physician providers in Massachusetts
There are 75 orthopaedic hand surgery physician records in Massachusetts.
All 75 in Massachusetts → Every provider in Quincy → Orthopaedic Hand Surgery Physician nationwide →
The 8 orthopaedic hand surgery physician records with the nearest ZIP codes
- Sohail Husain, MDStoneham, MA 021801720285356
- Stanley Hom, M.D.Milton, MA 021861356380448
- Debra Mulley, M.D.Cambridge, MA 021391356397541
- James Connor, M.D.Cambridge, MA 021381831318898
- Sarah Rogers, MD, MPHBoston, MA 022151871149518
- Monica Shoji, MDBoston, MA 022151730617507
- Kevin Zuo, MDBoston, MA 022151871231209
- Eagen Deune, MDBoston, MA 021181619912466
Common questions
What is John J. Kadzielski, MD's NPI number?
John J. Kadzielski, MD's National Provider Identifier (NPI) is 1053448498, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John J. Kadzielski, MD located?
The NPPES record lists a practice address at 300 Congress St Ste 304, Quincy, MA, 02169. Phone: (617) 773-2200. Providers update this record themselves, so call before visiting.
How can I verify John J. Kadzielski, MD's license?
NPPES lists Massachusetts license number 239683, 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.
How much does John J. Kadzielski, MD prescribe under Medicare Part D?
In 2024, John J. Kadzielski, MD had 58 Medicare Part D claims for 43 beneficiaries; the average among orthopaedic hand surgery physician prescribers was 186. Part D covers Medicare prescriptions only.
What is John J. Kadzielski, MD's MIPS final score?
The 2023 MIPS final score is 69 of 100, reported for the practice group. 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.