What is Benjamin Siemanowski's specialty?

Benjamin Siemanowski (NPI 1548301120) is a Medicare-billing provider whose primary specialty is Gastroenterology in Bellingham, WA.

Where does Benjamin Siemanowski practice?

Benjamin Siemanowski practices in Bellingham, WA, based on the location reported in the CMS Medicare provider datasets for NPI 1548301120.

How much does Medicare pay Benjamin Siemanowski?

Benjamin Siemanowski (NPI 1548301120) received approximately $177K in total Medicare Part B payments, serving 399 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1548301120

Benjamin SiemanowskiM.D.

PRACTICENORTHWEST GASTROENTEROLOGY PROFESSIONAL LLCSee all providers at this practice →

GastroenterologyBellingham, WAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

828

Unique beneficiaries

—

Total services

1,037

Distinct HCPCS

Medicare payment

$83K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

987

Beneficiaries

—

Total drug cost

$448K

Distinct drugs

Brand share

49.1%

Top prescribed drugs

Sodium, Potassium,mag Sulfates314 claims

Omeprazole279 claims

Pantoprazole Sodium54 claims

Mesalamine53 claims

Sodium Chloride/Nahco3/Kcl/Peg52 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

0.0

Cost

77.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Benjamin Siemanowski'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). 13 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Northwest Pathology Pllc Clinical Laboratory · Bellingham, WA	174	277
Peacehealth Ambulatory Surgical Center · Bellingham, WA	141	189
PEACEHEALTH	140	432
Anna Hardesty Physician Assistant · Bellingham, WA	27	52
Megan Britson Physician Assistant · Bellingham, WA	27	44
PEACEHEALTH UNITED GENERAL MEDICAL CENTER	25	70
Peter Buetow Diagnostic Radiology · Bellingham, WA	22	34
Matthew Studley Diagnostic Radiology · Bellingham, WA	16	26
Gita Rabbani Diagnostic Radiology · Bellingham, WA	16	22
Stephen Buetow Diagnostic Radiology · Ft Gordon, GA	15	28
Michael Smith Diagnostic Radiology · Bellingham, WA	13	22
Kathryn Cambron Diagnostic Radiology · Omaha, NE	12	24

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