Jeffrey M. Peppercorn, MD
Hematology & Oncology Physician · Boston, MA
Jeffrey M. Peppercorn, MD is a hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1053471599, issued on Dec 12, 2006. Check the license (Massachusetts 205640, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jeffrey M. Peppercorn
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 205640 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 726-6500
- Enumerated
- Dec 12, 2006
- Record last updated
- Jan 23, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (617) 724-1079
- Medicaid IDs
- 5901937 NC
110003017/A MA - Medicare enrollment
- Enrolled (PECOS I20141229001300); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jeffrey M. Peppercorn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 205640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
112 Medicare Part D claims for 34 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Anastrozole33 claims
- Exemestane15 claims
- Verzenio13 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.
Industry payments in 2024: $700.00
2 payments; by number, the most common kind was grant; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 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 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationWaltham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey M. Peppercorn among 461 hematology & oncology physician records in Massachusetts
Jeffrey M. Peppercorn, MD 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 50% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1998 · median 2004 among the 303 with a school on file
- Record last updated2015 · 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
- Vassiliki Boussiotis, MD PHDBoston, MA 021141861474215
- Marcia Browne, MDBoston, MA 021141639146210
- George Canellos, MDBoston, MA 021141114908027
- Yi-Bin Chen, MDBoston, MA 021141356332639
- John ClarkBoston, MA 021141871550244
- Lauren Dias, MDBoston, MA 021141215928346
- Kira Gritsman, MDBoston, MA 021141174598148
- David HarmonBoston, MA 021141851358352
Common questions
What is Jeffrey M. Peppercorn, MD's NPI number?
Jeffrey M. Peppercorn, MD's National Provider Identifier (NPI) is 1053471599, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey M. Peppercorn, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-6500. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey M. Peppercorn, MD's license?
NPPES lists Massachusetts license number 205640, 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 Jeffrey M. Peppercorn, MD prescribe under Medicare Part D?
In 2024, Jeffrey M. Peppercorn, MD had 112 Medicare Part D claims for 34 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
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.