What is Donald Weimer's specialty?

Donald Weimer (NPI 1932152980) is a Medicare-billing provider whose primary specialty is Orthopedic Surgery in O Fallon, IL.

Where does Donald Weimer practice?

Donald Weimer practices in O Fallon, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1932152980.

How much does Medicare pay Donald Weimer?

Donald Weimer (NPI 1932152980) received approximately $166K in total Medicare Part B payments, serving 284 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1932152980

Donald WeimerM.D.

Orthopedic SurgeryO Fallon, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

805

Unique beneficiaries

—

Total services

1,621

Distinct HCPCS

Medicare payment

$125K

Peer benchmark

Total Medicare services vs. 749 Orthopedic Surgery providers in IL — below median (cohort median 1,820).

PRESCRIBING · PART D · 2024

Total Rx claims

131

Beneficiaries

—

Total drug cost

$1K

Distinct drugs

Brand share

56.5%

Top prescribed drugs

Hydrocodone/Acetaminophen45 claims

Ondansetron Hcl29 claims

Oxycodone Hcl/Acetaminophen29 claims

Amoxicillin17 claims

Naloxone Hcl11 claims

QUALITY · MIPS · 2024

Final MIPS score

94.8

Quality

86.0

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.83%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$6K

Payment records

By payment type

Travel and Lodging$4K

Food and Beverage$2K

Gift$24

Top paying entities

Travel and Lodging$4K

Food and Beverage$2K

Gift$24

REFERRAL NETWORK

Where Donald Weimer'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Adam Taves Diagnostic Radiology · St. Charles, MO	27	70
Jayant Amberker Diagnostic Radiology · Belleville, IL	27	64
PROTESTANT MEMORIAL MEDICAL CENTER, INC.	23	63
Christopher Norbet Diagnostic Radiology · Springfield, IL	23	68
Michelle Burk Internal Medicine · Belleville, IL	18	81
Satyen Patel Hospitalist · Belleville, IL	14	32
Aaron Settler Diagnostic Radiology · Springfield, IL	14	30
Mark Morris Anesthesiology · Belleville, IL	13	45
Medstar Ambulance Inc Ambulance Service Provider · Sparta, IL	13	30
James Boivin Anesthesiology · Belleville, IL	11	52

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