What is Ryan Holzmacher's specialty?

Ryan Holzmacher (NPI 1598700601) is a Medicare-billing provider whose primary specialty is Internal Medicine in Greenfield, WI.

Where does Ryan Holzmacher practice?

Ryan Holzmacher practices in Greenfield, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1598700601.

How much does Medicare pay Ryan Holzmacher?

Ryan Holzmacher (NPI 1598700601) received approximately $292K in total Medicare Part B payments, serving 858 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1598700601

Ryan HolzmacherMD

PRACTICELANDMARK RECOVERY OF GREENFIELD LLCSee all providers at this practice →

Internal MedicineGreenfield, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,427

Unique beneficiaries

—

Total services

4,130

Distinct HCPCS

Medicare payment

$291K

Peer benchmark

Total Medicare services vs. 1,244 Internal Medicine providers in WI — top quintile (cohort median 578).

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.

REFERRAL NETWORK

Where Ryan Holzmacher'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). 26 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PARATECH AMBULANCE SERVICE, INC.	49	327
Bell Ambulance, Inc. Ambulance Service Provider · Milwaukee, WI	43	362
EHF LAKE COUNTRY SNF OP LLC	39	311
POST ACUTE SPECIALTY HOSPITAL OF MILWAUKEE LLC	39	319
Kamran Quraishi Internal Medicine · Carmel, IN	34	808
Harry Hostetler Internal Medicine · Waukesha, WI	32	429
John Christianson Internal Medicine · Milwaukee, WI	26	1,517
Ravindra Karmarkar Infectious Disease · Ellicott City, MD	24	963
KETTLE MORAINE EMERGENCY MEDICAL SERVICES INC	22	205
Ludmil Lazarov Internal Medicine · Chicago, IL	21	183
MEDA-CARE AMBULANCE CORP	19	123
Abbas Ali Pulmonary Disease · Milwaukee, WI	18	184

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