Dr. Donald Alan Weimer, MD
- Medicare services, 2024
- 1,621
- Medicare patients, 2024
- 284
- Part D claims, 2024
- 184
- MIPS score, 2024
- 95
- Hospital affiliations
- 4
- Practice address
- 3215 Executive Park Dr, Springfield, IL 62703
- Practice phone
- Call (217) 789-1403
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
HSHS Medical Group Inc
Springfield, Illinois
Find Dr. Weimer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Donald Alan Weimer is an orthopedic surgeon in Springfield, Illinois
Dr. Weimer practices at HSHS Medical Group Inc in Springfield, Illinois.
Dr. Weimer's NPI, 1932152980, was assigned on May 19, 2006. Dr. Weimer graduated from Medical College of Wisconsin in 1988. Dr. Weimer holds Illinois license 036101574.
- NPI
- 1932152980NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365404555
- NPI enumeration date
- May 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 789-1403
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Donald Alan Weimer practices at HSHS Medical Group Inc in Springfield, Illinois
Dr. Weimer's primary practice is HSHS Medical Group Inc, at 3215 Executive Park Dr, Springfield, IL 62703 in Sangamon County. The practice phone is (217) 789-1403.
- HSHS Medical Group Inc3215 Executive Park Dr, Springfield, IL 62703 · Sangamon CountyPhone(217) 789-1403
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Donald Alan Weimer is affiliated with 7 sites of care and 1 medical group
Dr. Weimer's primary practice is HSHS Medical Group Inc in Springfield, Illinois. Dr. Weimer is also affiliated with SSM Health Rehabilitation Hospital - Richmond Heights. The medical group on file is HSHS Medical Group. Dmand AI also links Dr. Weimer to 3 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Donald Alan Weimer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weimer practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HSHS Medical Group Inc | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Donald Alan Weimer is one of 849 orthopedic surgeons in Illinois
Orthopaedic surgery is Dr. Weimer's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Weimer is licensed in Illinois.
Specialties and state licenses
- Orthopaedic surgery, IllinoisPrimary
Orthopedic surgeons near Dr. Weimer
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Donald Alan Weimer billed Medicare for 1,621 services in 2024
CMS data shows 1,621 Medicare services from Dr. Weimer across 16 procedure codes in 2024, for 284 Medicare patients. Medicare paid $124,753 for them.
Dr. Weimer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 3772024: 56049%
- Drugs given in the office
- 2023: 3622024: 41916%
- Office and hospital visits
- 2023: 3072024: 41535%
- Surgery
- 2023: 2092024: 2279%
Where Dr. Weimer's Medicare services took place, 2024
- In an office1,48191%
- In a facility1409%
Dr. Weimer compared with the Illinois median for orthopedic surgeons, 2024
- Dr. Weimer
- Illinois median
- Medicare services
- 1,621vs 1,25030% above
- Medicare patients
- 284vs 296Close to median
- Part D claims
- 131vs 1209% above
Medians across 741 orthopedic surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Weimer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weimer and other orthopedic surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Donald Alan Weimer treated 284 Medicare patients in 2024, average age 73
CMS counts 284 Medicare patients who saw Dr. Weimer in 2024. The largest group is 65 to 74, with 150 patients. 75% of them have arthritis, and 75% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Weimer's median patient age at 71, with 56% women.
Dr. Weimer's Medicare patients by age, 2024
Dr. Weimer's Medicare patients by sex, 2024
- Women15655%
- Men12845%
Chronic conditions among Dr. Weimer's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes37%
- Ischemic heart disease31%
- Chronic kidney disease29%
- Mood disorders29%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weimer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Donald Alan Weimer wrote 184 Medicare Part D claims in 2024
In 2024, Dr. Weimer wrote 184 Medicare Part D claims for 81 patients. 98% of them were for generic drugs. CMS names the drug for 131 of them, across 5 drugs with 11 or more claims each, at $1,284 in total drug cost. In 2023, CMS named 86 claims across 3 drugs.
Dr. Weimer's Part D claims by kind of drug, 2024
- Generic181 claims98%
- Brand-name and other3 claims2%
Dr. Weimer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Weimer's Part D claims, 2024
- Opioids45%83 of 184 claims
- Antibiotics15%28 of 184 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 862024: 13152%
Drugs named by CMS: 5 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Donald Alan Weimer scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Weimer for performance year 2024, reported through an alternative payment model (APM). Dr. Weimer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 49 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Weimer, more than 86% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Weimer's MIPS scores, performance year 2024
- 95of 100Final score
- 86of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Weimer ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 86th percentile49 procedures
- Knee replacement
- 55th percentile22 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Donald Alan Weimer received $44,207 in industry payments from 2016 to 2025
CMS Open Payments shows 190 general payments to Dr. Weimer from 20 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 33% of the total. Arthrex, Inc. paid the most, $22,396.
General payments to Dr. Weimer by program year, 2016 to 2025
General payments to Dr. Weimer by kind, 2016 to 2025
- Travel and lodging$14,57333%
- Education$12,98629%
- Consulting fees$7,84118%
- Food and beverage$7,73417%
- Other$1,0742%
Companies that paid Dr. Weimer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Donald Alan Weimer graduated from Medical College of Wisconsin
Dr. Weimer graduated from Medical College of Wisconsin in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Donald Alan Weimer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Donald Alan Weimer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Donald Alan Weimer's NPI number?
Dr. Donald Alan Weimer's NPI number is 1932152980. It was assigned on May 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Donald Alan Weimer?
Dr. Donald Alan Weimer is an orthopedic surgeon in Springfield, Illinois. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Donald Alan Weimer practice?
Dr. Weimer practices at 3215 Executive Park Dr, Springfield, IL 62703. Dr. Weimer's primary practice is HSHS Medical Group Inc in Springfield, Illinois. Dmand AI also links Dr. Weimer to 3 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Donald Alan Weimer's office phone number?
The practice phone on file for Dr. Weimer is (217) 789-1403.
What is Dr. Donald Alan Weimer's medical license number?
Dr. Weimer holds Illinois license 036101574.
Which hospitals is Dr. Donald Alan Weimer affiliated with?
Dr. Weimer is affiliated with SSM Health Rehabilitation Hospital - Richmond Heights. Dmand AI links Dr. Weimer to 3 more hospitals.
What medical group is Dr. Donald Alan Weimer part of?
Dr. Weimer is linked to HSHS Medical Group.
Does Dr. Donald Alan Weimer accept Medicare?
Yes. CMS data shows Dr. Weimer billed Medicare for 1,621 services in 2024, and Dr. Weimer accepts Medicare assignment.
What is Dr. Donald Alan Weimer's MIPS score?
Dr. Weimer's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Donald Alan Weimer see?
CMS counts 284 Medicare patients who saw Dr. Weimer in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Donald Alan Weimer bill to Medicare?
In 2024, Dr. Weimer's most billed Medicare services were diagnostic imaging (73030), injected or infused drug (J3301) and office visit, established patient (99213).
Where did Dr. Donald Alan Weimer go to medical school?
Dr. Weimer graduated from Medical College of Wisconsin in 1988.
What drugs does Dr. Donald Alan Weimer prescribe most?
In 2024 Medicare Part D data, Dr. Weimer's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron HCl and Oxycodone-Acetaminophen.
Has Dr. Donald Alan Weimer received payments from drug or device companies?
CMS Open Payments shows $44,207 in general payments to Dr. Weimer from 20 companies from 2016 to 2025. The largest total came from Arthrex, Inc.
How long has Dr. Donald Alan Weimer been practicing?
Dr. Weimer graduated from medical school in 1988, 38 years ago.
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