What is Margaret Chappen's specialty?

Margaret Chappen (NPI 1477529295) is a Medicare-billing provider whose primary specialty is Internal Medicine in Milton, PA.

Where does Margaret Chappen practice?

Margaret Chappen practices in Milton, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1477529295.

How much does Medicare pay Margaret Chappen?

Margaret Chappen (NPI 1477529295) received approximately $12K in total Medicare Part B payments, serving 136 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1477529295

Margaret ChappenM.D.

Internal MedicineMilton, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

257

Unique beneficiaries

—

Total services

275

Distinct HCPCS

Medicare payment

$10K

Peer benchmark

Total Medicare services vs. 4,434 Internal Medicine providers in PA — below median (cohort median 550).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$58

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Escitalopram Oxalate13 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 Margaret Chappen'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). 11 inbound referrers · 20 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
GEISINGER MEDICAL CENTER	218	1,389
EVANGELICAL COMMUNITY HOSPITAL	103	492
Susannah Kisvarday Pediatric Medicine · Danville, PA	42	218
GEISINGER MEDICAL CENTER	24	93
William Cameron Engine Company Of Lewisburg Pennsylvania Ambulance Service Provider · Lewisburg, PA	22	60
GEISINGER MEDICAL CENTER	22	49
Daniel Case Diagnostic Radiology · Lewisberry, PA	20	42
Christopher Brancato Cardiology · Lewisburg, PA	15	43
David Zelechoski Internal Medicine · Lewisburg, PA	15	35
Clara Chudow Diagnostic Radiology · Danville, PA	13	23
LUTHERAN SENIOR SERVICES EAST	11	33

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
GEISINGER MEDICAL CENTER	158	771
EVANGELICAL COMMUNITY HOSPITAL	92	405
GEISINGER MEDICAL CENTER	64	187
Mark Speake Internal Medicine · Lewisburg, PA	57	242
Jack Martin Diagnostic Radiology · Harrisburg, PA	50	152
ROHRER, GEORGE	43	99
ZOTALIS, GEORGE	42	183
ARISUMI, SUSAN	42	164
Susannah Kisvarday Pediatric Medicine · Danville, PA	40	195
Margaret Still Internal Medicine · Lewisburg, PA	38	126
GEISINGER MEDICAL CENTER	29	116
GEISINGER MEDICAL CENTER	24	66

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