Zsofia K. Stadler, M.D.
Hematology & Oncology Physician · Boston, MA
Zsofia K. Stadler, M.D. is a hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1154511251, issued on Jul 26, 2007. Check the license (Massachusetts 223042, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Zsofia K. Stadler
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 223042 MA
Self-reported in NPPES; status is on the state search - Practice location
- Bidmc, Boston, MA 02115
- Phone
- (617) 667-9262
- Enumerated
- Jul 26, 2007
- Record last updated
- Jul 26, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090107000067); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Verify Zsofia K. Stadler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 223042Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
31 Medicare Part D claims for 11 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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): 89.6 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 2 group practices
- Memorial Clinical Genetics GroupNew York, NY
- Memorial Solid Tumor GroupNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zsofia K. Stadler among 461 hematology & oncology physician records in Massachusetts
Zsofia K. Stadler, M.D. is one of 461 hematology & oncology physician records with a practice address in Massachusetts. 75% 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 50% of them.
- NPI issued2007 · 50% of these records are older, 39% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2002 · median 2004 among the 303 with a school on file
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Massachusetts
There are 461 hematology & oncology physician records in Massachusetts.
All 461 in Massachusetts → Every provider in Boston → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- James Bradner, MDBoston, MA 021151518920867
- Daniel Deangelo, M.D.,PH.D.Boston, MA 021151134104920
- Judy Garber, M.D.Boston, MA 021151194703637
- Eric Jacobsen, MDBoston, MA 021151457321861
- Anthony Letai, MDBoston, MA 021151851368435
- Nancy Lin, MDBoston, MA 021151316906498
- Paul Richardson, MDBoston, MA 021151770544256
- Stephen Rothenberg, MD PHDBoston, MA 021151689641581
Common questions
What is Zsofia K. Stadler, M.D.'s NPI number?
Zsofia K. Stadler, M.D.'s National Provider Identifier (NPI) is 1154511251, issued on Jul 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Zsofia K. Stadler, M.D. located?
The NPPES record lists a practice address at Bidmc, Boston, MA, 02115. Phone: (617) 667-9262. Providers update this record themselves, so call before visiting.
How can I verify Zsofia K. Stadler, M.D.'s license?
NPPES lists Massachusetts license number 223042, 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 Zsofia K. Stadler, M.D. prescribe under Medicare Part D?
In 2024, Zsofia K. Stadler, M.D. had 31 Medicare Part D claims for 11 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Zsofia K. Stadler, M.D.'s MIPS final score?
The 2023 MIPS final score is 89.6 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.