Caitlin Keenan, MD
Hematology & Oncology Physician · Boston, MA
Caitlin Keenan, MD is a hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1518600410, issued on Apr 18, 2022. Check the license (Massachusetts 3018092, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Caitlin Keenan
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 3018092 MA
Self-reported in NPPES; status is on the state search - Practice location
- 860 Washington St, Boston, MA 02111
- Phone
- (617) 636-5291
- Enumerated
- Apr 18, 2022
- Record last updated
- Jul 16, 2025
- Entity
- Type 1 · individual
Also registered at 860 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadia BhattiClinical Social Worker1760969166
- Michelle BoushkaPhysician Assistant1356916894
- Hannah DunnPhysician Assistant1932781481
- William Kim, M.D.Otolaryngology Physician1306284179
- Miguel Leiva Juarez, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1962924753
- Mangun Randhawa, MDDiagnostic Radiology Physician1992558464
Verify Caitlin Keenan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 3018092Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
31 Medicare Part D claims for 19 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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.
Hematology & Oncology Physician providers in Massachusetts
There are 461 hematology & oncology physician records in Massachusetts.
Other hematology & oncology physician records in Massachusetts
- Gregory Abel, MDBoston, MA1285611954
- Rachel Abelman, MDBoston, MA1255821617
- Karim Abou-Nassar, MDBoston, MA1366770745
- Inas Abuali, M.D.Boston, MA1952659971
- Jose Acevedo Mejia, M.D.Boston, MA1801277173
- Maureen Achebe, MD, MPHBoston, MA1407955172
- Archana Agarwal, MDSpringfield, MA1548592165
- Rasmia Ahmed, MDFramingham, MA1568409936
- Hanny Al-Samkari, MDBoston, MA1669765988
- Tasneem Ali, M.D.Worcester, MA1629036553
Common questions
What is Caitlin Keenan, MD's NPI number?
Caitlin Keenan, MD's National Provider Identifier (NPI) is 1518600410, issued on Apr 18, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Caitlin Keenan, MD located?
The NPPES record lists a practice address at 860 Washington St, Boston, MA, 02111. Phone: (617) 636-5291. Providers update this record themselves, so call before visiting.
How can I verify Caitlin Keenan, MD's license?
NPPES lists Massachusetts license number 3018092, 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 Caitlin Keenan, MD prescribe under Medicare Part D?
In 2024, Caitlin Keenan, MD had 31 Medicare Part D claims for 19 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.