Colum Dennehy, MB BCH
Hematology & Oncology Physician · Baltimore, MD
Colum Dennehy, MB BCH is a hematology & oncology physician with a practice address in Baltimore, Maryland, and NPI 1346977568, issued on Aug 7, 2022. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Colum Dennehy
- Credential
- MB BCH
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 409182 ZZ
Self-reported in NPPES; status is on the state search - Practice location
- 1650 Orleans St, Baltimore, MD 21287
- Phone
- (410) 614-2491
- Enumerated
- Aug 7, 2022
- Record last updated
- Aug 7, 2022
- Entity
- Type 1 · individual
Also registered at 1650 Orleans St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alan Friedman, M.D.Pediatric Hematology & Oncology Physician1760421812
- Robyn Gartrell, MDPediatric Hematology & Oncology Physician1104147487
- Douglas Gladstone, M.D.Medical Oncology Physician1386660207
- Noah Hahn, M.D.Hematology & Oncology Physician1376582197
- Valentina Hoyos Velez, M.D.Internal Medicine Physician1700111747
- Jenny Kim, MDHematology & Oncology Physician1629244389
Verify Colum Dennehy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
91 Medicare Part D claims for 24 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims. 18 claims were for opioids.
Most prescribed
- Ibrance13 claims
- Oxycodone Hcl13 claims
- Creon11 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.
Hematology & Oncology Physician providers in Maryland
There are 317 hematology & oncology physician records in Maryland.
Other hematology & oncology physician records in Maryland
- Kenneth Abbott, M.D.Prince Frederick, MD1306976949
- Courtney Ackerman, M.D.Silver Spring, MD1790919744
- Michael Adashek, D.O.Towson, MD1972037661
- Manish Agrawal, M.D.Rockville, MD1275614984
- Bilal Ahmed, MDPrince Frederick, MD1093984411
- Saira Ahmed, MDBaltimore, MD1932393766
- Margaret Akpan, MDCheverly, MD1669458931
- Ahmad Al-Homsi, MDBaltimore, MD1104808047
- Kashif Ali, M.D.Silver Spring, MD1851423388
- Zakari Aliyu, MDBaltimore, MD1679539464
Common questions
What is Colum Dennehy, MB BCH's NPI number?
Colum Dennehy, MB BCH's National Provider Identifier (NPI) is 1346977568, issued on Aug 7, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Colum Dennehy, MB BCH located?
The NPPES record lists a practice address at 1650 Orleans St, Baltimore, MD, 21287. Phone: (410) 614-2491. Providers update this record themselves, so call before visiting.
How can I verify Colum Dennehy, MB BCH's license?
Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Colum Dennehy, MB BCH prescribe under Medicare Part D?
In 2024, Colum Dennehy, MB BCH had 91 Medicare Part D claims for 24 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.