Bruce J. Giantonio, MD
Medical Oncology Physician · Philadelphia, PA
Bruce J. Giantonio, MD is a medical oncology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1255377198, issued on Jun 21, 2006. Check the license (Pennsylvania MD041905L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Bruce J. Giantonio
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- MD041905L PA
Self-reported in NPPES; status is on the state search - Practice location
- 3400 Spruce St, Philadelphia, PA 19104
- Phone
- (215) 662-3914
- Enumerated
- Jun 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 0014116000005 PA
- Medicare enrollment
- Enrolled (PECOS I20171103000638); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1987
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 265 in Pennsylvania → Look up another NPI →
Also registered at 3400 Spruce St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Abbott, CRNPNurse Practitioner1396771689
- Michael Abboud, MDEmergency Medicine Physician1962820852
- Emily AbdelmessihPediatric Pharmacist1891612560
- Mohammed AbdullahStudent in an Organized Health Care Education/Training Program1013595495
- Amin Abedini, MDStudent in an Organized Health Care Education/Training Program1912609017
- Farid Aboharb, MD, PHDStudent in an Organized Health Care Education/Training Program1295595973
Verify Bruce J. Giantonio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD041905LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average medical oncology physician in 2024
136 Medicare Part D claims for 33 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 22 claims were for opioids.
Most prescribed
- Ondansetron Hcl19 claims
- Prochlorperazine Maleate15 claims
- Hydromorphone Hcl12 claims
- Mirtazapine11 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 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bruce J. Giantonio among 265 medical oncology physician records in Pennsylvania
Bruce J. Giantonio, MD is one of 265 medical oncology physician records with a practice address in Pennsylvania. 83% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 49% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1987 · median 2002 among the 189 with a school on file
- Record last updated2007 · 68% 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 Pennsylvania 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 Pennsylvania
There are 265 medical oncology physician records in Pennsylvania.
All 265 in Pennsylvania → Every provider in Philadelphia → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Ravi Amaravadi, MDPhiladelphia, PA 191041043252455
- Charalambos Andreadis, MDPhiladelphia, PA 191041205877669
- Naomi Balzer, MDPhiladelphia, PA 191041477516888
- Adam Cohen, MDPhiladelphia, PA 191041245201029
- Susan Domchek, MDPhiladelphia, PA 191041487695102
- Kevin Fox, MDPhiladelphia, PA 191041578506887
- John Glick, MDPhiladelphia, PA 191041285677591
- Carl June, MDPhiladelphia, PA 191041386687689
Common questions
What is Bruce J. Giantonio, MD's NPI number?
Bruce J. Giantonio, MD's National Provider Identifier (NPI) is 1255377198, issued on Jun 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bruce J. Giantonio, MD located?
The NPPES record lists a practice address at 3400 Spruce St, Philadelphia, PA, 19104. Phone: (215) 662-3914. Providers update this record themselves, so call before visiting.
How can I verify Bruce J. Giantonio, MD's license?
NPPES lists Pennsylvania license number MD041905L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Bruce J. Giantonio, MD prescribe under Medicare Part D?
In 2024, Bruce J. Giantonio, MD had 136 Medicare Part D claims for 33 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.