Caroline C. Block, MD
Medical Oncology Physician · Newton, MA
Caroline C. Block, MD is a medical oncology physician with a practice address in Newton, Massachusetts, and NPI 1851368633, issued on Mar 1, 2006. Check the license (Massachusetts 58104, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Caroline C. Block
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 58104 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2014 Washington St, Newton, MA 02462
- Phone
- (617) 658-6000
- Enumerated
- Mar 1, 2006
- Record last updated
- Sep 28, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (617) 658-6001
- Medicaid ID
- 3072240 MA
- Medicare enrollment
- Enrolled (PECOS I20060323000587); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1985
- 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 2014 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nooshin Abbasi, MD MPHInternal Medicine Physician1831888353
- Todd Abbott, M.D.Anatomic Pathology & Clinical Pathology Physician1013057454
- Tatiana Abrantes, MDStudent in an Organized Health Care Education/Training Program1962107250
- Maura Adrian, LICSWSocial Worker1083106918
- Davies Agyekum, M.D., PHDAnesthesiology Physician1134651425
- Tarik Alkasab, M.D., PH.D.Diagnostic Radiology Physician1154305803
Verify Caroline C. Block in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 58104Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average medical oncology physician in 2024
400 Medicare Part D claims for 105 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Letrozole140 claims
- Anastrozole34 claims
- Tamoxifen Citrate17 claims
- Alendronate Sodium11 claims
- Ibrance11 claims
- Kisqali11 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.
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).
Caroline C. Block among 421 medical oncology physician records in Massachusetts
Caroline C. Block, MD 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
- Graduated1985 · median 2007 among the 291 with a school on file
- Record last updated2018 · 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 Newton → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Barbara Healey, M.DNewton, MA 024621841254679
- Mark Huberman, MDNewton, MA 024591477583441
- Melody Craft, M.D.Waltham, MA 024511124218268
- James O'Leary, M.D.Waltham, MA 024511336371012
- Elgene Lim, M.D.Boston, MA 024461073817524
- Dan Longo, M.D.Brookline, MA 024451790842664
- Robert Tepper, M.D.Weston, MA 024931720101629
- Herbert Dean, M.D.Falmouth, MA 025401629135173
Common questions
What is Caroline C. Block, MD's NPI number?
Caroline C. Block, MD's National Provider Identifier (NPI) is 1851368633, issued on Mar 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Caroline C. Block, MD located?
The NPPES record lists a practice address at 2014 Washington St, Newton, MA, 02462. Phone: (617) 658-6000. Providers update this record themselves, so call before visiting.
How can I verify Caroline C. Block, MD's license?
NPPES lists Massachusetts license number 58104, 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 Caroline C. Block, MD prescribe under Medicare Part D?
In 2024, Caroline C. Block, MD had 400 Medicare Part D claims for 105 beneficiaries; the average among medical oncology physician prescribers was 703. 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.