Physician Profile
Unclaimed ProfileAbout WEIMER
Donald Alan Weimer, M.D. practices orthopedic surgery in O Fallon, IL. Donald is a 1988 graduate of Medical College of Wisconsin. Donald is also listed as specializing in orthopaedic surgery. According to Medicare claims data, Donald cared for 805 Medicare patients across 1,621 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (618) 641-5800
- Email not available
Practice Locations
1512 N GREEN MOUNT RD SUITE 300
O Fallon, IL 62269
Procedures Most Often Billed to Medicare
1,621 services · 805 patients · 16 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
124 |
| Prosthetic repair of shoulder joint, total shoulder | Procedure | 23472 |
26 |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
19 |
| Shaving of part of shoulder bone and repair of ligament using an endoscope | Procedure | 29826 |
17 |
| Removal of extensive shoulder joint tissue using an endoscope | Procedure | 29823 |
16 |
| Partial removal of collar bone at shoulder using an endoscope | Procedure | 29824 |
13 |
| Repair of shoulder rotator cuff using an endoscope | Procedure | 29827 |
12 |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
438 |
| X-ray of knee, 3 views | Imaging | 73562 |
122 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
376 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other orthopedic surgeons in O Fallon 3
Same specialty, same city.
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1988 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Weimer specialize in?
Dr. Weimer is an orthopedic surgeon in O Fallon, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ORTHOPEDIC SURGERY”.
NPI registry
Where is Dr. Weimer located?
Dr. Weimer is listed at 1512 N GREEN MOUNT RD SUITE 300, O Fallon, IL 62269. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Weimer's phone number?
The number on file is (618) 641-5800. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Weimer's NPI number?
Dr. Weimer's National Provider Identifier is 1932152980. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Weimer go to medical school?
Dr. Weimer attended Medical College of Wisconsin, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Weimer been practicing?
Dr. Weimer has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Weimer do most often?
According to Medicare billing data, Dr. Weimer performs procedures including aspiration and/or injection of fluid from large joint, prosthetic repair of shoulder joint, total shoulder and replacement of knee joint, both sides of knee; reads or performs imaging such as x-ray of shoulder, minimum of 2 views and x-ray of knee, 3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Weimer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Weimer. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.