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