What is Benjamin Merrifield's specialty?

Benjamin Merrifield (NPI 1083695167) is a Medicare-billing provider whose primary specialty is Gastroenterology in Olympia, WA.

Where does Benjamin Merrifield practice?

Benjamin Merrifield practices in Olympia, WA, based on the location reported in the CMS Medicare provider datasets for NPI 1083695167.

How much does Medicare pay Benjamin Merrifield?

Benjamin Merrifield (NPI 1083695167) received approximately $16K in total Medicare Part B payments, serving 100 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1083695167

Benjamin MerrifieldMD

GastroenterologyOlympia, WAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

119

Unique beneficiaries

—

Total services

121

Distinct HCPCS

Medicare payment

$13K

Peer benchmark

Total Medicare services vs. 359 Gastroenterology providers in WA — bottom quintile (cohort median 511).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

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 (1)

CCN 500024

Hospital

REFERRAL NETWORK

Where Benjamin Merrifield'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). 5 inbound referrers · 13 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PROVIDENCE HEALTH & SERVICES WASHINGTON	64	135
PROVIDENCE HEALTH & SERVICES WASHINGTON	18	40
Laboratory Corporation Of America Clinical Laboratory · Seattle, WA	17	37
Mihai Iancu Diagnostic Radiology · Las Vegas, NV	16	27
CONTRERAS, MARICELA	11	24

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Gastroenterology Associates, Llc Ambulatory Surgical Center · Olympia, WA	128	241
PROVIDENCE HEALTH & SERVICES WASHINGTON	104	213
Nisreen Fidda Pathology · Olympia, WA	34	67
PATHOLOGY ASSOCIATES MEDICAL LABORATORIES LLC	33	76
Dominique Coco Pathology · Boston, MA	32	61
Kevin Long Pathology · Seattle, WA	30	69
WHITTEN, RICHARD	24	45
PROVIDENCE HEALTH & SERVICES WASHINGTON	19	52
Francois Cady Pathology · Rochester, MN	19	38
Mihai Iancu Diagnostic Radiology · Las Vegas, NV	17	59
Cellnetix Labs, Llc Clinical Laboratory · Tukwila, WA	14	33
Laboratory Corporation Of America Clinical Laboratory · Seattle, WA	12	22

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