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Dr. Daniel L. Callaway, M.D.

Pediatric Hematology & Oncology (Pediatric Hematology & Oncology Physician)

33 Whiting Hill Rd
Brewer, ME 04412

Who else practices at this address →

Penobscot County includes primary care (24% of residents) and mental health (15% of residents) shortage areas. About shortage areas

Call (207) 973-9733

At a glance

Years since graduation
15
In the NPI registry since
2011

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2011Medical school: University of Texas Medical School at San Antonio
  • 2011Registered with an NPI (national billing number; not a license date)

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Pediatric Hematology & Oncology Physician primary
    ME license MD24051 · RI license LP03247 · SD license 10514
  • Student in an Organized Health Care Education/Training Program

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Pediatric Hematology & Oncology per capita by county →

Where they work

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Oxycodone Hcl
Other prescribers in Brewer, ME
11

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Pediatric Hematology & Oncology clinicians in Brewer

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 22, 2020), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1134428899. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.