James Mark Cleary, MD/PHD
Medical Oncology Physician · Boston, MA
James Mark Cleary, MD/PHD is a medical oncology physician with a practice address in Boston, Massachusetts, and NPI 1922062397, issued on Apr 13, 2006. Check the license (Massachusetts 226742, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- James Mark Cleary
- Credential
- MD/PHD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 226742 MA
Self-reported in NPPES; status is on the state search - Practice location
- 44 Binney St, Boston, MA 02115
- Phone
- (617) 632-3000
- Enumerated
- Apr 13, 2006
- Record last updated
- Feb 17, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100421000769); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 421 in Massachusetts → Look up another NPI →
Also registered at 44 Binney St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karim Abou-Nassar, MDHematology & Oncology Physician1366770745
- Janet Abrahm, MDMedical Oncology Physician1427024264
- Thomas Abrams, M.D.Medical Oncology Physician1184693947
- Christine Agius, RN, MSN, NP-C, RNCAdult Health Nurse Practitioner1932114790
- Laura Aguilar, MD PHDPediatric Hematology & Oncology Physician1295786598
- Zi Yazan Alabed, M.D., PH.D.Student in an Organized Health Care Education/Training Program1184046583
Verify James Mark Cleary in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 226742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average medical oncology physician in 2024
242 Medicare Part D claims for 44 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 13 claims were for opioids.
Most prescribed
- Lorazepam28 claims
- Prochlorperazine Maleate22 claims
- Omeprazole16 claims
- Loperamide13 claims
- Olanzapine13 claims
- Dexamethasone12 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): 86.3 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).
Industry payments in 2024: $9,669.50
6 payments; by number, the most common kind was consulting fee; the largest payer was AstraZeneca Pharmaceuticals LP. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dana-Farber Cancer Institute, Inc.Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Mark Cleary among 421 medical oncology physician records in Massachusetts
James Mark Cleary, MD/PHD is one of 421 medical oncology physician records with a practice address in Massachusetts. 76% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2003 · median 2007 among the 291 with a school on file
- Record last updated2010 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Massachusetts
There are 421 medical oncology physician records in Massachusetts.
All 421 in Massachusetts → Every provider in Boston → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Janet Abrahm, MDBoston, MA 021151427024264
- Rameen Beroukhim, MDBoston, MA 021151083680680
- Craig Bunnell, MDBoston, MA 021151982679767
- Jennifer Chan, MDBoston, MA 021151871578823
- Iris Chan, MD PHDBoston, MA 021151396712105
- Suzanne George, MDBoston, MA 021151437126018
- Vincent Ho, MDBoston, MA 021151245207737
- Frank Hodi, MDBoston, MA 021151730156324
Common questions
What is James Mark Cleary, MD/PHD's NPI number?
James Mark Cleary, MD/PHD's National Provider Identifier (NPI) is 1922062397, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Mark Cleary, MD/PHD located?
The NPPES record lists a practice address at 44 Binney St, Boston, MA, 02115. Phone: (617) 632-3000. Providers update this record themselves, so call before visiting.
How can I verify James Mark Cleary, MD/PHD's license?
NPPES lists Massachusetts license number 226742, 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 James Mark Cleary, MD/PHD prescribe under Medicare Part D?
In 2024, James Mark Cleary, MD/PHD had 242 Medicare Part D claims for 44 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is James Mark Cleary, MD/PHD's MIPS final score?
The 2023 MIPS final score is 86.3 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.