Trevor John Bayliss, M.D.
Hematology & Oncology Physician · Pittsfield, MA
Trevor John Bayliss, M.D. is a hematology & oncology physician with a practice address in Pittsfield, Massachusetts, and NPI 1982821906, issued on Apr 19, 2007. Check the license (Massachusetts 254002, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Trevor John Bayliss
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 254002 MA
14613 NH
Self-reported in NPPES; status is on the state search - Practice location
- 165 Tor CT, Pittsfield, MA 01201
- Phone
- (413) 443-6000
- Enumerated
- Apr 19, 2007
- Record last updated
- Aug 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130809000487); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Also registered at 165 Tor CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Bartlett, PA-CMedical Physician Assistant1831070556
- Alexander Belkin, MDHematology & Oncology Physician1346701653
- Glenda Boykin, PA-CMedical Physician Assistant1104078120
- Andrew Demaggio, MDPhysical Medicine & Rehabilitation Physician1619921608
- Carol Dickinson, FNPFamily Nurse Practitioner1467572370
- Marthanne Donaldson, ANPAdult Health Nurse Practitioner1285754184
Verify Trevor John Bayliss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 254002Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
587 Medicare Part D claims for 199 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 46 claims were for opioids.
Most prescribed
- Eliquis41 claims
- Letrozole37 claims
- Prednisone31 claims
- Hydroxyurea26 claims
- Tamoxifen Citrate22 claims
- Brukinsa21 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.
Industry payments in 2024: $38.32
2 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Berkshire Faculty Services IncPittsfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Trevor John Bayliss among 461 hematology & oncology physician records in Massachusetts
Trevor John Bayliss, M.D. is one of 461 hematology & oncology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 39% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2007 · median 2004 among the 303 with a school on file
- Record last updated2018 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Massachusetts
There are 461 hematology & oncology physician records in Massachusetts.
All 461 in Massachusetts → Every provider in Pittsfield → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Alexander Belkin, MDPittsfield, MA 012011346701653
- Michael Deleo, M.DPittsfield, MA 012011447222443
- Paul Rosenthal, M.D.Pittsfield, MA 012011568434488
- Jesse Spector, M.DPittsfield, MA 012011598737231
- Caio Teixeira Heleno, MDPittsfield, MA 012011578115077
- Spyridon Triantos, M.D.Pittsfield, MA 012011952373110
- Harvey Zimbler, M.D.Pittsfield, MA 012011083686224
- Sugam GouliSpringfield, MA 011991235781881
Common questions
What is Trevor John Bayliss, M.D.'s NPI number?
Trevor John Bayliss, M.D.'s National Provider Identifier (NPI) is 1982821906, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Trevor John Bayliss, M.D. located?
The NPPES record lists a practice address at 165 Tor CT, Pittsfield, MA, 01201. Phone: (413) 443-6000. Providers update this record themselves, so call before visiting.
How can I verify Trevor John Bayliss, M.D.'s license?
NPPES lists Massachusetts license number 254002, 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 Trevor John Bayliss, M.D. prescribe under Medicare Part D?
In 2024, Trevor John Bayliss, M.D. had 587 Medicare Part D claims for 199 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.