What is Douglas Keyser's specialty?

Douglas Keyser (NPI 1902831688) is a Medicare-billing provider whose primary specialty is Radiation Oncology in Canton, OH.

Where does Douglas Keyser practice?

Douglas Keyser practices in Canton, OH, based on the location reported in the CMS Medicare provider datasets for NPI 1902831688.

How much does Medicare pay Douglas Keyser?

Douglas Keyser (NPI 1902831688) received approximately $260K in total Medicare Part B payments, serving 259 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1902831688

Douglas KeyserM.D.

PRACTICEHEART CORE, LLCSee all providers at this practice →

Radiation OncologyCanton, OHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,236

Unique beneficiaries

—

Total services

3,465

Distinct HCPCS

Medicare payment

$254K

Peer benchmark

Total Medicare services vs. 217 Radiation Oncology providers in OH — top quintile (cohort median 1,412).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$804

Distinct drugs

Brand share

37.0%

Top prescribed drugs

Tamsulosin Hcl34 claims

Oxycodone Hcl/Acetaminophen18 claims

Dexamethasone17 claims

Hydrocodone/Acetaminophen12 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Douglas Keyser's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 7 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARCHANT, KANDICE	54	614
GALION COMMUNITY HOSPITAL	30	1,174
Anthony Mastroianni Radiation Oncology · Cleveland, OH	17	216
Philip Calendine Diagnostic Radiology · Mansfield, OH	16	158
Ahmed Ghany Hematology · Athens, OH	13	1,207
CROPP, LANCE	13	68
Chirag Shah Radiation Oncology · Pittsburgh, PA	12	88

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events