Dr. Greg L. Brown, MD
- Part D claims, 2024
- 499
- Hospital affiliations
- 1
- Industry payments
- $646
- Medical group
- 1
- State license
- 1
- Practice address
- 409 NW 9th Avenue, Aledo, IL 61231
- Practice phone
- Call (309) 582-9100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Brown'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. Greg L. Brown is an internist in Aledo, Illinois
Dr. Brown practices at MercyOne Genesis Aledo Medical Center in Aledo, Illinois, part of Trinity Health.
Dr. Brown's NPI, 1841344231, was assigned on January 22, 2007. Dr. Brown holds Wisconsin license WI-26924.
- NPI
- 1841344231NPI Registry (opens in a new tab)
- NPI enumeration date
- January 22, 2007
- NPI status
- Active
- Practice phone
- (309) 582-9100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Greg L. Brown practices at MercyOne Genesis Aledo Medical Center in Aledo, Illinois
Dr. Brown's primary practice is MercyOne Genesis Aledo Medical Center, at 409 NW 9th Avenue, Aledo, IL 61231 in Mercer County. The practice phone is (309) 582-9100.
- MercyOne Genesis Aledo Medical Center409 NW 9th Avenue, Aledo, IL 61231 · Mercer CountyPhone(309) 582-9100
Source: Dmand AI Affiliation Data
Dr. Greg L. Brown is affiliated with 2 sites of care and 1 medical group
Dr. Brown's primary practice is MercyOne Genesis Aledo Medical Center in Aledo, Illinois, part of Trinity Health. Dmand AI also links Dr. Brown to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Greg L. Brown's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brown practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MercyOne Genesis Aledo Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Greg L. Brown is one of 5,652 internists in Illinois
Internal medicine is Dr. Brown's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Brown is licensed in Wisconsin.
Specialties and state licenses
- Internal medicine, WisconsinPrimary
Internists near Dr. Brown
Counts of internists 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. Greg L. Brown's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Brown's median patient age at 44, with 59% women.
Dr. Brown's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women59%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Greg L. Brown wrote 499 Medicare Part D claims in 2024
In 2024, Dr. Brown wrote 499 Medicare Part D claims for 24 patients. 93% of them were for generic drugs. CMS names the drug for 375 of them, across 17 drugs with 11 or more claims each, at $19,215 in total drug cost. In 2023, CMS named 235 claims across 9 drugs.
Dr. Brown's Part D claims by kind of drug, 2024
- Generic463 claims93%
- Brand-name36 claims7%
Dr. Brown'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. Brown's Part D claims, 2024
- Antibiotics28%138 of 499 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: 2352024: 37560%
Drugs named by CMS: 17 in 2024, 9 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
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Dr. Greg L. Brown received $646 in industry payments from 2016 to 2024
CMS Open Payments shows 33 general payments to Dr. Brown from 10 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Romark Laboratories, LC paid the most, $147.
General payments to Dr. Brown by program year, 2016 to 2024
Companies that paid Dr. Brown the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Greg L. Brown'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Greg L. Brown
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. Greg L. Brown's NPI number?
Dr. Greg L. Brown's NPI number is 1841344231. It was assigned on January 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Greg L. Brown?
Dr. Greg L. Brown is an internist in Aledo, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Greg L. Brown practice?
Dr. Brown practices at 409 NW 9th Avenue, Aledo, IL 61231. Dr. Brown's primary practice is MercyOne Genesis Aledo Medical Center in Aledo, Illinois, part of Trinity Health. Dmand AI also links Dr. Brown to 1 group practice or clinic and 1 medical group.
What is Dr. Greg L. Brown's office phone number?
The practice phone on file for Dr. Brown is (309) 582-9100.
What is Dr. Greg L. Brown's medical license number?
Dr. Brown holds Wisconsin license WI-26924.
Which hospitals is Dr. Greg L. Brown affiliated with?
Dr. Brown practices at MercyOne Genesis Aledo Medical Center in Aledo, Illinois.
What drugs does Dr. Greg L. Brown prescribe most?
In 2024 Medicare Part D data, Dr. Brown's most prescribed drugs by claims were Liothyronine Sodium, Cefuroxime and Levothyroxine Sodium.
Has Dr. Greg L. Brown received payments from drug or device companies?
CMS Open Payments shows $646 in general payments to Dr. Brown from 10 companies from 2016 to 2024. The largest total came from Romark Laboratories, LC.
How long has Dr. Greg L. Brown been practicing?
Dr. Brown's NPI was assigned in 2007.
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