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Dr. Caroline C. Block, MD
NPI1851368633PAC ID5395753933
- Medicare services, 2024
- 250
- Medicare patients, 2024
- 163
- Part D claims, 2024
- 400
- Publications
- 27
- Clinical trials
- 15
- Practice address
- 450 Brookline Avenue, Boston, MA 02115
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Block's professional email, personal email and mobile number
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Dr. Caroline C. Block is a medical oncologist in Boston, Massachusetts
Dr. Block practices at Dana-Farber Cancer Institute in Boston, Massachusetts, part of Dana-Farber Cancer Institute.
Dr. Block's NPI, 1851368633, was assigned on March 1, 2006. Dr. Block graduated from University Of Michigan Medical School in 1985. Dr. Block holds Massachusetts license 58104.
NPI and contact details
- NPI
- 1851368633NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395753933
- NPI enumeration date
- March 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Caroline C. Block practices at Dana-Farber Cancer Institute in Boston, Massachusetts
Dr. Block's primary practice is Dana-Farber Cancer Institute, at 450 Brookline Avenue, Boston, MA 02115.
- Dana-Farber Cancer Institute450 Brookline Avenue, Boston, MA 02115
Source: Dmand AI Affiliation Data
Dr. Caroline C. Block is affiliated with 5 sites of care and 2 medical groups
Dr. Block's primary practice is Dana-Farber Cancer Institute in Boston, Massachusetts, part of Dana-Farber Cancer Institute. Dr. Block is also affiliated with Massachusetts General Hospital. The medical group on file is Steward Medical Group. Dmand AI also links Dr. Block to 3 more hospitals and 1 medical group, each named with a free account.
Massachusetts General HospitalSteward Medical Group3 hospitalsNames with a free account1 medical groupName with a free account
See all 7 affiliations for Dr. BlockSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Caroline C. Block's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Block practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dana-Farber Cancer Institute | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Caroline C. Block is one of 290 medical oncologists in Massachusetts
Medical oncology is Dr. Block's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Block is board certified in internal medicine by the American Board of Internal Medicine. Dr. Block is licensed in Massachusetts.
Specialties and state licenses
- Medical oncology, MassachusettsPrimary
Clinical focus
Dmand AI lists breast cancer, lung cancer, lymphoma and prostate cancer among the conditions Dr. Block treats.
Medical oncologists near Dr. Block
Counts of medical oncologists with a Dmand AI profile, by place and practice. Each opens the list.
290medical oncologists in Massachusetts228medical oncologists in Boston96medical oncologists at Dana-Farber Cancer Institute
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Caroline C. Block billed Medicare for 250 services in 2024
CMS data shows 250 Medicare services from Dr. Block across 3 procedure codes in 2024, all of them office visits, for 163 Medicare patients. Medicare paid $24,098 for them.
Medicare services, 2024250
Medicare patients163
Paid by Medicare$24,098
Procedure codes3
Dr. Block's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3472024: 25028%
Where Dr. Block's Medicare services took place, 2024
- In an office17470%
- In a facility7630%
Dr. Block compared with the Massachusetts median for medical oncologists, 2024
- Dr. Block
- Massachusetts median
- Medicare services
- 250vs 260Close to median
- Medicare patients
- 163vs 10950% above
- Part D claims
- 235vs 633.7 times
Medians across 259 medical oncologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Block's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Caroline C. Block treated 163 Medicare patients in 2024, average age 73
CMS counts 163 Medicare patients who saw Dr. Block in 2024. The largest group is 65 to 74, with 86 patients. 75% of them have cancer, and 63% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Block's median patient age at 67, with 98% women.
Medicare patients, 2024163
Average age73
Average risk score1.29
Also on Medicaid9%
Dr. Block's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Block's Medicare patients, 2024
- Cancer75%
- High cholesterol63%
- High blood pressure62%
- Arthritis39%
- Osteoporosis37%
- Anxiety32%
- Mood disorders25%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Block's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women98%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Caroline C. Block wrote 400 Medicare Part D claims in 2024
In 2024, Dr. Block wrote 400 Medicare Part D claims for 105 patients. 81% of them were for generic drugs. CMS names the drug for 235 of them, across 7 drugs with 11 or more claims each, at $564,683 in total drug cost. In 2023, CMS named 301 claims across 10 drugs.
Part D claims, 2024400
Drugs named by CMS7
Total drug cost$564,683
Part D patients105
Dr. Block's Part D claims by kind of drug, 2024
- Generic322 claims81%
- Brand-name78 claims20%
Dr. Block's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3012024: 23522%
Drugs named by CMS: 7 in 2024, 10 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Caroline C. Block offers telehealth to Medicare patients
Dr. Block accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Block as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Caroline C. Block has 27 publications on record
Dmand AI links 27 papers to Dr. Block, published from 2012 to 2024. 2020 was the busiest year, with 7. The most frequent topics are Breast Neoplasms, Antineoplastic Combined Chemotherapy Protocols and Inflammatory Breast Neoplasms. Dr. Block has published most often in Am J Clin Oncol. Dr. Block's most frequent co-authors are Sara Michell Tolaney, MD, Ann H. Partridge, MD, MPH and Jose Pablo Leone, MD.
Papers27
Years published2012 to 2024
Dr. Block's papers by year, 2012 to 2024
Topics Dr. Block writes about most
- Breast Neoplasms
- Antineoplastic Combined Chemotherapy Protocols
- Inflammatory Breast Neoplasms
- Aromatase Inhibitors
- Diagnosis, Differential
- Feasibility Studies
- Medical Oncology
- Paclitaxel
Dr. Block's most frequent co-authors
- Sara Michell Tolaney, MD8 shared papers
- Ann H. Partridge, MD, MPH6 shared papers
- Jose Pablo Leone, MD5 shared papers
Recent publications by Dr. Block
Antimetabolites, AntineoplasticCapecitabineDihydrouracil Dehydrogenase (NADP)
Antibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy ProtocolsAromatase Inhibitors
See who Dr. Block researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Block works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Caroline C. Block has worked on 15 clinical trials
Dmand AI links Dr. Block to 15 clinical trials, 9 of them phase 3 studies. 10 are still active or recruiting. Conditions studied include Breast Neoplasms, Breast Diseases and Carcinoma, Intraductal, Noninfiltrating. National Cancer Institute (NCI) sponsors the most, 5.
Clinical trials with Dr. Block by phase
- NonePhase 1: no trials
- 2Phase 1/2: 2 trials
- 3Phase 2: 3 trials
- 9Phase 3: 9 trials
- NonePhase 4: no trials
Conditions in Dr. Block's trials
- Breast Neoplasms
- Breast Diseases
- Carcinoma, Intraductal, Noninfiltrating
- Multiple Myeloma
- Triple Negative Breast Neoplasms
Investigators on the most trials with Dr. Block
- Blair Ardman, MD8 shared trials
- Terrence P. Cescon, MD6 shared trials
- Gilbert D. A. Padula, MD6 shared trials
Recent clinical trials with Dr. Block
A Randomized Phase II Trial of Carboplatin With or Without Nivolumab in First-line Metastatic Triple-negative Breast Cancer (opens in a new tab)
Active, not recruitingPhase 2
Breast NeoplasmsBreast DiseasesCarboplatinNivolumab
Platinum in Treating Patients With Residual Triple-Negative Breast Cancer Following Neoadjuvant Chemotherapy (opens in a new tab)
Active, not recruitingPhase 3
Triple Negative Breast NeoplasmsBreast NeoplasmsCapecitabineCarboplatinCisplatin
Doxorubicin Hydrochloride and Cyclophosphamide Followed by Paclitaxel With or Without Carboplatin in Treating Patients With Triple-Negative Breast Cancer (opens in a new tab)
Active, not recruitingPhase 3
Triple Negative Breast NeoplasmsBreast NeoplasmsCarboplatinCyclophosphamideDoxorubicin Hydrochloride
Carcinoma, Non-Small-Cell LungCarcinoma, BronchogenicCrizotinib
Rituximab and Bendamustine Hydrochloride, Rituximab and Ibrutinib, or Ibrutinib Alone in Treating Older Patients With Previously Untreated Chronic Lymphocytic Leukemia (opens in a new tab)
Active, not recruitingPhase 3
Leukemia, Lymphocytic, Chronic, B-CellLeukemia, B-CellBendamustine HydrochlorideIbrutinibRituximab
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Caroline C. Block received $12 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Block from 1 drug or device company in 2021. Education make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $12.
Companies that paid Dr. Block the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Caroline C. Block has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Block.
Awards and honors for Dr. Block
- Undated
- Checkbook Top Doc
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Caroline C. Block graduated from University Of Michigan Medical School
Dr. Block graduated from University Of Michigan Medical School in 1985. Dr. Block is a member of ASCO.
- Medical school
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Caroline C. Block accepts plans from 14 insurance carriers
Dr. Block is in network with 14 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- +6 more carriersWith a free account
Plan types Dr. Block accepts, by number of carriers
- Medicare11
- PPO11
- HMO6
- POS5
- EPO3
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Caroline C. Block's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Caroline C. Block
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Caroline C. Block's NPI number?
Dr. Caroline C. Block's NPI number is 1851368633. It was assigned on March 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Caroline C. Block?
Dr. Caroline C. Block is a medical oncologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Caroline C. Block practice?
Dr. Block practices at 450 Brookline Avenue, Boston, MA 02115. Dr. Block's primary practice is Dana-Farber Cancer Institute in Boston, Massachusetts, part of Dana-Farber Cancer Institute. Dmand AI also links Dr. Block to 3 hospitals and 1 medical group.
What is Dr. Caroline C. Block's medical license number?
Dr. Block holds Massachusetts license 58104.
Which hospitals is Dr. Caroline C. Block affiliated with?
Dr. Block practices at Dana-Farber Cancer Institute in Boston, Massachusetts. Dr. Block is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Block to 3 more hospitals.
What medical group is Dr. Caroline C. Block part of?
Dr. Block is linked to Steward Medical Group. Dmand AI links Dr. Block to 1 more medical group.
Does Dr. Caroline C. Block accept Medicare?
Yes. CMS data shows Dr. Block billed Medicare for 250 services in 2024, and Dr. Block accepts Medicare assignment.
Does Dr. Caroline C. Block offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Block as offering telehealth services.
How many Medicare patients does Dr. Caroline C. Block see?
CMS counts 163 Medicare patients who saw Dr. Block in 2024, with an average age of 73.
Is Dr. Caroline C. Block board certified?
Yes. Dr. Block is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Caroline C. Block bill to Medicare?
In 2024, Dr. Block's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99205).
Where did Dr. Caroline C. Block go to medical school?
Dr. Block graduated from University Of Michigan Medical School in 1985.
What drugs does Dr. Caroline C. Block prescribe most?
In 2024 Medicare Part D data, Dr. Block's most prescribed drugs by claims were Letrozole, Anastrozole and Tamoxifen Citrate.
Has Dr. Caroline C. Block received payments from drug or device companies?
CMS Open Payments shows $12 in general payments to Dr. Block from 1 company from 2021 to 2021. The largest total came from Gilead Sciences, Inc.
How long has Dr. Caroline C. Block been practicing?
Dr. Block graduated from medical school in 1985, 41 years ago.
Does Dr. Caroline C. Block do research?
Dmand AI links 27 publications to Dr. Block, published from 2012 to 2024. Dr. Block has worked on 15 clinical trials.
Who does Dr. Caroline C. Block publish with?
Dr. Block's most frequent co-authors are Sara Michell Tolaney, MD (8 shared papers), Ann H. Partridge, MD, MPH (6 shared papers) and Jose Pablo Leone, MD (5 shared papers).
What insurance does Dr. Caroline C. Block accept?
Dr. Block is in network with 14 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
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