Charles S. Chen, MD
Hematology & Oncology Physician · Foxboro, MA
Charles S. Chen, MD is a hematology & oncology physician with a practice address in Foxboro, Massachusetts, and NPI 1629141122, issued on Nov 15, 2006. Check the license (Massachusetts 59676, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles S. Chen
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 59676 MA
Self-reported in NPPES; status is on the state search - Practice location
- 70 Walnut St Ste 101, Foxboro, MA 02035
- Phone
- (508) 668-5060
- Enumerated
- Nov 15, 2006
- Record last updated
- Sep 15, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (508) 668-6110
- Medicaid ID
- 3035379 MA
- Medicare enrollment
- Enrolled (PECOS I20050407000980); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Verify Charles S. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 59676Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,983 Medicare Part D claims for 255 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 122 claims were for opioids.
Most prescribed
- Atorvastatin Calcium140 claims
- Metoprolol Succinate129 claims
- Eliquis107 claims
- Prednisone101 claims
- Levothyroxine Sodium91 claims
- Omeprazole89 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: $98.00
1 payment: education; the largest payer was Astellas Pharma US Inc. 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.
One hospital affiliation
- Martha's Vineyard Hospital IncOak Bluffs, MA · Critical Access Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Charles S. Chen among 461 hematology & oncology physician records in Massachusetts
Charles S. Chen, 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
- Graduated1981 · median 2004 among the 303 with a school on file
- Record last updated2009 · 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 Foxboro → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Jonathan Croopnick, M.D.Foxboro, MA 020351598871360
- Gregory Berk, MDDover, MA 020301306208905
- Paula McBrine, MDMansfield, MA 020481891769295
- Carol Vasconcellos, MDMansfield, MA 020481053385393
- Angela Nervi, M.D.Canton, MA 020211366558298
- James Popkin, M.D.Norwood, MA 020621477550408
- Karen Scanlan, M.D.Norwood, MA 020621639176662
- Stephen Alpert, MDSalem, MA 019701922054675
Common questions
What is Charles S. Chen, MD's NPI number?
Charles S. Chen, MD's National Provider Identifier (NPI) is 1629141122, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles S. Chen, MD located?
The NPPES record lists a practice address at 70 Walnut St Ste 101, Foxboro, MA, 02035. Phone: (508) 668-5060. Providers update this record themselves, so call before visiting.
How can I verify Charles S. Chen, MD's license?
NPPES lists Massachusetts license number 59676, 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 Charles S. Chen, MD prescribe under Medicare Part D?
In 2024, Charles S. Chen, MD had 2,983 Medicare Part D claims for 255 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.