Individual provider

Daniel Boxer, MD

Hematology & Oncology Physician Medicare enrolled

Daniel Boxer, MD is a Hematology & Oncology Physician in Trumball, CT, registered under NPI 1043479090.

Getting there

The practice address on file is 5520 PARK AVENUE GARDEN LEVEL, Trumball, CT 06611. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

5520 PARK AVENUE GARDEN LEVEL, Trumball, CT 06611 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
56291 CT Hematology & Oncology Physician primary

This provider holds licence 56291 issued in CT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Hematology/oncology
PAC ID
3274689344

Medicare enrolment is recorded as approved under the provider type Practitioner - Hematology/oncology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Hematology & Oncology covers

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered. NUCC Health Care Provider Taxonomy, code 207RH0003X
Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1043479090 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJun 5, 2008
Last updatedJan 15, 2025
StatusActive
Sole proprietorNo
CredentialMD
Practice address 5520 PARK AVENUE
GARDEN LEVEL
Trumball, CT 06611
(203) 502-8400
Fax (203) 845-4897
Mailing address 333 CEDAR STREET, YALE MEDICAL SCHOOL WWW205
New Haven, CT 06510
Other identifiers P00773616 · RAILROAD MEDICARE (DC)
This record was updated on Jan 15, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1043479090 passes the NPI check digit test The final digit 0 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 0 4 3 4 7 9 0 9
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 0 8 3 8 7 9 0 9

Sum = 70 · next multiple of 10 = 70 · check digit = 0 · actual last digit = 0

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1043479090?
NPI 1043479090 is the National Provider Identifier assigned to Daniel Boxer, MD in Trumball, CT. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Hematology & Oncology cover?
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of…
How do I contact Daniel Boxer, MD?
The phone number on file with NPPES is (203) 502-8400, last updated Jan 15, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Daniel Boxer, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1043479090 a valid number?
Yes. 1043479090 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.