What is Frederick Gehrmann's specialty?

Frederick Gehrmann (NPI 1861480055) is a Medicare-billing provider whose primary specialty is Anesthesiology in Marshfield, WI.

Where does Frederick Gehrmann practice?

Frederick Gehrmann practices in Marshfield, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1861480055.

How much does Medicare pay Frederick Gehrmann?

Frederick Gehrmann (NPI 1861480055) received approximately $25K in total Medicare Part B payments, serving 206 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861480055

Frederick GehrmannM.D.

PRACTICEMARSHFIELD CLINICSee all providers at this practice →

AnesthesiologyMarshfield, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$2K

Peer benchmark

Total Medicare services vs. 863 Anesthesiology providers in WI — above median (cohort median 157).

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

Total received

$115

Payment records

By payment type

Food and Beverage$115

Top paying entities

Food and Beverage$115

REFERRAL NETWORK

Where Frederick Gehrmann'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). 18 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST JOHNS HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST F	196	375
MEMORIAL MEDICAL CENTER	39	98
Dean Collette Diagnostic Radiology · Springfield, IL	27	57
Springfield Clinic, Llp Clinical Laboratory · Springfield, IL	24	51
Onsi Kamel Pathology · Springfield, IL	24	36
Sue Volarich Diagnostic Radiology · Springfield, IL	23	44
Patrick Hemmer Pathology · Springfield, IL	21	41
Shailesh Nandish Internal Medicine · Springfield, IL	19	29
Vincent Zata Diagnostic Radiology · Springfield, IL	18	25
Richard Katholi Cardiology · Springfield, IL	17	25
Bradley Kirkenir Certified Registered Nurse Anesthetist (CRNA) · Peoria, IL	15	16
Anton Johnson Diagnostic Radiology · Springfield, IL	15	21

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