What is Karen Peterson's specialty?

Karen Peterson (NPI 1861610610) is a Medicare-billing provider whose primary specialty is Physician Assistant in Weymouth, MA.

Where does Karen Peterson practice?

Karen Peterson practices in Weymouth, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1861610610.

How much does Medicare pay Karen Peterson?

Karen Peterson (NPI 1861610610) received approximately $62K in total Medicare Part B payments, serving 239 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861610610

Karen PetersonPA-C

PRACTICESP GANGULY MD PCSee all providers at this practice →

Physician AssistantWeymouth, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,031

Unique beneficiaries

—

Total services

1,487

Distinct HCPCS

Medicare payment

$58K

Peer benchmark

Total Medicare services vs. 3,315 Physician Assistant providers in MA — top quintile (cohort median 227).

PRESCRIBING · PART D · 2024

Total Rx claims

3,672

Beneficiaries

—

Total drug cost

$323K

Distinct drugs

Brand share

16.9%

Top prescribed drugs

Atorvastatin Calcium334 claims

Amlodipine Besylate211 claims

Lisinopril180 claims

Omeprazole131 claims

Metoprolol Succinate129 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 Karen Peterson'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). 21 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Heather Feldman Physician Assistant · Fall River, MA	67	182
Jessica Spissinger Physician Assistant · Quincy, MA	63	118
John Cazeau Physician Assistant · Fall River, MA	60	122
GOLDMAN, MARCUS	58	194
Bruce Kriegel Cardiology · Brockton, MA	55	85
Roderick Mccoy Internal Medicine · Cambridge, MA	44	341
Eascare Llc Ambulance Service Provider · Weymouth, MA	38	58
PLYMOUTH, CARINE	33	52
HIEKEN, KAREN	33	67
Nicholas James Critical Care (Intensivists) · Stuart, FL	31	76
Michael Ritchie Physician Assistant · Stoughton, MA	31	137
SOUTH SHORE HOSPITAL INC.	30	69

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