What is Kristin O'neil-Callahan's specialty?

Kristin O'neil-Callahan (NPI 1215985445) is a Medicare-billing provider whose primary specialty is Internal Medicine in Peabody, MA.

Where does Kristin O'neil-Callahan practice?

Kristin O'neil-Callahan practices in Peabody, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1215985445.

How much does Medicare pay Kristin O'neil-Callahan?

Kristin O'neil-Callahan (NPI 1215985445) received approximately $83K in total Medicare Part B payments, serving 330 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1215985445

Kristin O'neil-CallahanM.D.

Internal MedicinePeabody, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,048

Unique beneficiaries

—

Total services

1,224

Distinct HCPCS

Medicare payment

$79K

Peer benchmark

Total Medicare services vs. 3,978 Internal Medicine providers in MA — top quintile (cohort median 564).

PRESCRIBING · PART D · 2024

Total Rx claims

3,600

Beneficiaries

—

Total drug cost

$122K

Distinct drugs

Brand share

11.7%

Top prescribed drugs

Atorvastatin Calcium293 claims

Lisinopril265 claims

Levothyroxine Sodium216 claims

Amlodipine Besylate189 claims

Hydrochlorothiazide181 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.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (7)

Home health agency

Home health agency

Hospital

Hospital

Hospital

Hospital

Inpatient rehabilitation facility

REFERRAL NETWORK

Where Kristin O'neil-Callahan'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). 4 inbound referrers · 8 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NORTHEAST HOSPITAL CORPORATION	41	168
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	21	90
THE GENERAL HOSPITAL CORPORATION	15	79
CLANCY, JANE	12	38

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
NORTH SHORE MEDICAL CENTER, INC.	75	465
NORTHEAST HOSPITAL CORPORATION	64	325
Lauren Bettencourt Physician Assistant · West Roxbury, MA	22	82
THE GENERAL HOSPITAL CORPORATION	19	108
LAHEY CLINIC HOSPITAL, INC.	17	76
GULATI, PRAVEEN	17	44
Cataldo Ambulance Service Inc Ambulance Service Provider · Somerville, MA	14	59
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	12	35

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