Dr. Aaron T. Brewer, MD
- Medicare services, 2024
- 165
- Medicare patients, 2024
- 155
- Part D claims, 2024
- 121
- Hospital affiliations
- 4
- Industry payments
- $1,452
- Practice address
- 900 N 1st St, Springfield, IL 62702
- Practice phone
- Call (217) 391-6940
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Springfield Clinic 1st
Springfield, Illinois
Find Dr. Brewer'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. Aaron T. Brewer is a general surgeon in Springfield, Illinois
Dr. Brewer practices at Springfield Clinic 1st in Springfield, Illinois.
Dr. Brewer's NPI, 1679794523, was assigned on May 1, 2007. Dr. Brewer graduated from Southern Illinois University School of Medicine in 2004. Dr. Brewer holds Illinois license 036123012.
- NPI
- 1679794523NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133272685
- NPI enumeration date
- May 1, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 391-6940
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Aaron T. Brewer practices at Springfield Clinic 1st in Springfield, Illinois
Dr. Brewer's primary practice is Springfield Clinic 1st, at 900 N 1st St, Springfield, IL 62702 in Sangamon County. The practice phone is (217) 391-6940.
- Springfield Clinic 1st900 N 1st St, Springfield, IL 62702 · Sangamon CountyPhone(217) 391-6940
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Aaron T. Brewer is affiliated with 7 sites of care and 2 medical groups
Dr. Brewer's primary practice is Springfield Clinic 1st in Springfield, Illinois. Dr. Brewer is also affiliated with Springfield Memorial Hospital. The medical group on file is Springfield Clinic. Dmand AI also links Dr. Brewer to 3 more hospitals, 1 group practice or clinic, 1 rural health clinic and 1 medical group, 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. Aaron T. Brewer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brewer practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Springfield Clinic 1st | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Aaron T. Brewer is one of 1,217 general surgeons in Illinois
Surgery is Dr. Brewer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Brewer is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Brewer
Counts of general 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. Aaron T. Brewer billed Medicare for 165 services in 2024
CMS data shows 165 Medicare services from Dr. Brewer across 8 procedure codes in 2024, for 155 Medicare patients. Medicare paid $21,024 for them.
Dr. Brewer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2102024: 10948%
- Surgery
- 2023: 472024: 3623%
- Imaging
- 2023: 212024: 205%
Where Dr. Brewer's Medicare services took place, 2024
- In an office9457%
- In a facility7143%
Dr. Brewer compared with the Illinois median for general surgeons, 2024
- Dr. Brewer
- Illinois median
- Medicare services
- 165vs 19415% below
- Medicare patients
- 155vs 1448% above
- Part D claims
- 106vs 283.8 times
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Brewer'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.
Need commercial claims for Dr. Brewer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brewer and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Aaron T. Brewer treated 155 Medicare patients in 2024, average age 73
CMS counts 155 Medicare patients who saw Dr. Brewer in 2024. The largest group is 65 to 74, with 77 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Brewer's median patient age at 62, with 47% women.
Dr. Brewer's Medicare patients by age, 2024
Dr. Brewer's Medicare patients by sex, 2024
- Women5234%
- Men10366%
Chronic conditions among Dr. Brewer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Arthritis43%
- Ischemic heart disease39%
- Diabetes34%
- Atrial fibrillation30%
- Cancer28%
- Mood disorders27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brewer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Aaron T. Brewer wrote 121 Medicare Part D claims in 2024
In 2024, Dr. Brewer wrote 121 Medicare Part D claims for 107 patients. 99% of them were for generic drugs. CMS names the drug for 106 of them, across 2 drugs with 11 or more claims each, at $834 in total drug cost. In 2023, CMS named 118 claims across 3 drugs.
Dr. Brewer's Part D claims by kind of drug, 2024
- Generic120 claims99%
- Brand-name and other1 claims1%
Dr. Brewer'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. Brewer's Part D claims, 2024
- Opioids88%107 of 121 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: 1182024: 10610%
Drugs named by CMS: 2 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. Aaron T. Brewer ranks in the 80th percentile for hernia repair (minimally invasive) in Medicare
Dr. Brewer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of hernia repair (minimally invasive) by Dr. Brewer, more than 80% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Brewer ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 80th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Aaron T. Brewer received $1,452 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Brewer from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 50% of the total. Davol Inc. paid the most, $849.
General payments to Dr. Brewer by program year, 2016 to 2025
General payments to Dr. Brewer by kind, 2016 to 2025
- Food and beverage$72750%
- Travel and lodging$72650%
Companies that paid Dr. Brewer 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. Aaron T. Brewer graduated from Southern Illinois University School of Medicine
Dr. Brewer graduated from Southern Illinois University School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Aaron T. Brewer'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)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. Aaron T. Brewer
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. Aaron T. Brewer's NPI number?
Dr. Aaron T. Brewer's NPI number is 1679794523. It was assigned on May 1, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron T. Brewer?
Dr. Aaron T. Brewer is a general surgeon in Springfield, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Aaron T. Brewer practice?
Dr. Brewer practices at 900 N 1st St, Springfield, IL 62702. Dr. Brewer's primary practice is Springfield Clinic 1st in Springfield, Illinois. Dmand AI also links Dr. Brewer to 3 hospitals, 1 group practice or clinic, 1 rural health clinic and 1 medical group.
What is Dr. Aaron T. Brewer's office phone number?
The practice phone on file for Dr. Brewer is (217) 391-6940.
What is Dr. Aaron T. Brewer's medical license number?
Dr. Brewer holds Illinois license 036123012.
Which hospitals is Dr. Aaron T. Brewer affiliated with?
Dr. Brewer is affiliated with Springfield Memorial Hospital. Dmand AI links Dr. Brewer to 3 more hospitals.
What medical group is Dr. Aaron T. Brewer part of?
Dr. Brewer is linked to Springfield Clinic. Dmand AI links Dr. Brewer to 1 more medical group.
Does Dr. Aaron T. Brewer accept Medicare?
Yes. CMS data shows Dr. Brewer billed Medicare for 165 services in 2024, and Dr. Brewer accepts Medicare assignment.
How many Medicare patients does Dr. Aaron T. Brewer see?
CMS counts 155 Medicare patients who saw Dr. Brewer in 2024, with an average age of 73.
What services does Dr. Aaron T. Brewer bill to Medicare?
In 2024, Dr. Brewer's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99213) and surgery: heart and blood vessels (36561).
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Where did Dr. Aaron T. Brewer go to medical school?
Dr. Brewer graduated from Southern Illinois University School of Medicine in 2004.
What drugs does Dr. Aaron T. Brewer prescribe most?
In 2024 Medicare Part D data, Dr. Brewer's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Tramadol HCl.
Has Dr. Aaron T. Brewer received payments from drug or device companies?
CMS Open Payments shows $1,452 in general payments to Dr. Brewer from 8 companies from 2016 to 2025. The largest total came from Davol Inc.
How long has Dr. Aaron T. Brewer been practicing?
Dr. Brewer graduated from medical school in 2004, 22 years ago.
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