What is Katherin Sonneborn's specialty?

Katherin Sonneborn (NPI 1881901718) is a Medicare-billing provider whose primary specialty is Physician Assistant in Exeter, NH.

Where does Katherin Sonneborn practice?

Katherin Sonneborn practices in Exeter, NH, based on the location reported in the CMS Medicare provider datasets for NPI 1881901718.

How much does Medicare pay Katherin Sonneborn?

Katherin Sonneborn (NPI 1881901718) received approximately $14K in total Medicare Part B payments, serving 124 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1881901718

Katherin SonnebornPA

PRACTICECORE PHYSICIANS LLCSee all providers at this practice →

Physician AssistantExeter, NHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

119

Unique beneficiaries

—

Total services

143

Distinct HCPCS

Medicare payment

$9K

Peer benchmark

Total Medicare services vs. 838 Physician Assistant providers in NH — below median (cohort median 299).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

86.4

Quality

85.9

Cost

0.0

Improvement activities

40.0

Promoting interop.

78.0

Payment adjustment

0.48%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Katherin Sonneborn'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). 32 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
EXETER HOSPITAL INC	215	974
Michael Marrero Diagnostic Radiology · El Segundo, CA	80	298
Alexander Raslavicus Diagnostic Radiology · Exeter, NH	79	227
Chad Cabral Gastroenterology · Exeter, NH	66	173
Arthur Yan Gastroenterology · San Diego, CA	64	184
Joseph Bautista Internal Medicine · Exeter, NH	46	229
DONSKER, DAVID	41	93
Hillary Tompkins Gastroenterology · Exeter, NH	38	124
COLLINS, BRIAN	33	81
Christopher Mertz Hospitalist · Concord, NH	32	115
Martin Ruzek Internal Medicine · Exeter, NH	30	159
Kevin Mulholland Internal Medicine · Exeter, NH	28	134

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