Dr. Aaron Michael Farber, DO
- Medicare services, 2024
- 501
- Medicare patients, 2024
- 499
- Part D claims, 2024
- 89
- MIPS score, 2024
- 95
- Hospital affiliations
- 2
- Practice address
- 4201 Medical Center Drive, Mchenry, IL 60050
- Practice phone
- Call (815) 344-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Farber's professional email, personal email and mobile number
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Dr. Aaron Michael Farber is an emergency medicine physician in Mchenry, Illinois
Dr. Farber practices at Northwestern Medicine McHenry Hospital in Mchenry, Illinois, part of Northwestern Memorial HealthCare.
Dr. Farber's NPI, 1871795443, was assigned on June 5, 2007. Dr. Farber graduated from NYIT College Of Osteopathic Medicine in 2025. Dr. Farber holds Illinois license 036121493.
- NPI
- 1871795443NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375699283
- NPI enumeration date
- June 5, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 344-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Aaron Michael Farber practices at Northwestern Medicine McHenry Hospital in Mchenry, Illinois
Dr. Farber's primary practice is Northwestern Medicine McHenry Hospital, at 4201 Medical Center Drive, Mchenry, IL 60050 in Mc Henry County. The practice phone is (815) 344-5000.
- Northwestern Medicine McHenry Hospital4201 Medical Center Drive, Mchenry, IL 60050 · Mc Henry CountyPhone(815) 344-5000
Source: Dmand AI Affiliation Data
Dr. Aaron Michael Farber is affiliated with 2 sites of care and 1 medical group
Dr. Farber's primary practice is Northwestern Medicine McHenry Hospital in Mchenry, Illinois, part of Northwestern Memorial HealthCare. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Farber to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Aaron Michael Farber's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Farber practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine McHenry Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwestern Memorial HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Aaron Michael Farber is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Farber's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Farber is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Farber
Counts of emergency medicine physicians 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 Michael Farber billed Medicare for 501 services in 2024
CMS data shows 501 Medicare services from Dr. Farber across 4 procedure codes in 2024, for 499 Medicare patients. Medicare paid $61,864 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Farber's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5832024: 50114%
Dr. Farber compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Farber
- Illinois median
- Medicare services
- 501vs 27483% above
- Medicare patients
- 499vs 27383% above
- Part D claims
- 37vs 4518% below
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Farber'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. Farber and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Aaron Michael Farber treated 499 Medicare patients in 2024, average age 78
CMS counts 499 Medicare patients who saw Dr. Farber in 2024. The largest group is 75 to 84, with 212 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.02, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Farber's median patient age at 71, with 55% women.
Dr. Farber's Medicare patients by age, 2024
Dr. Farber's Medicare patients by sex, 2024
- Women27655%
- Men22345%
Chronic conditions among Dr. Farber's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Ischemic heart disease54%
- Chronic kidney disease48%
- Anxiety43%
- Mood disorders43%
- Diabetes42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Farber'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
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Aaron Michael Farber wrote 89 Medicare Part D claims in 2024
In 2024, Dr. Farber wrote 89 Medicare Part D claims for 81 patients. 99% of them were for generic drugs. CMS names the drug for 37 of them, across 2 drugs with 11 or more claims each, at $251 in total drug cost. In 2023, CMS named 29 claims across 2 drugs.
Dr. Farber's Part D claims by kind of drug, 2024
- Generic88 claims99%
- Brand-name and other1 claims1%
Dr. Farber'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. Farber's Part D claims, 2024
- Opioids24%21 of 89 claims
- Antibiotics54%48 of 89 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: 292024: 3728%
Drugs named by CMS: 2 in 2024, 2 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 Michael Farber 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. Farber for performance year 2024, reported through an alternative payment model (APM). Dr. Farber accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Farber's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Aaron Michael Farber received $267 in industry payments from 2016 to 2024
CMS Open Payments shows 5 general payments to Dr. Farber from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Valeant Pharmaceuticals International paid the most, $145.
General payments to Dr. Farber by program year, 2016 to 2024
Companies that paid Dr. Farber the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Aaron Michael Farber graduated from NYIT College Of Osteopathic Medicine
Dr. Farber graduated from NYIT College Of Osteopathic Medicine in 2025.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Aaron Michael Farber'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 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) |
| 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 Michael Farber
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 Michael Farber's NPI number?
Dr. Aaron Michael Farber's NPI number is 1871795443. It was assigned on June 5, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron Michael Farber?
Dr. Aaron Michael Farber is an emergency medicine physician in Mchenry, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Aaron Michael Farber practice?
Dr. Farber practices at 4201 Medical Center Drive, Mchenry, IL 60050. Dr. Farber's primary practice is Northwestern Medicine McHenry Hospital in Mchenry, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Farber to 1 hospital.
What is Dr. Aaron Michael Farber's office phone number?
The practice phone on file for Dr. Farber is (815) 344-5000.
What is Dr. Aaron Michael Farber's medical license number?
Dr. Farber holds Illinois license 036121493.
Which hospitals is Dr. Aaron Michael Farber affiliated with?
Dr. Farber practices at Northwestern Medicine McHenry Hospital in Mchenry, Illinois. Dmand AI links Dr. Farber to 1 more hospital.
What medical group is Dr. Aaron Michael Farber part of?
Dr. Farber is linked to Northwestern Medical Faculty Foundation.
Does Dr. Aaron Michael Farber accept Medicare?
Yes. CMS data shows Dr. Farber billed Medicare for 501 services in 2024, and Dr. Farber accepts Medicare assignment.
What is Dr. Aaron Michael Farber's MIPS score?
Dr. Farber'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. Aaron Michael Farber see?
CMS counts 499 Medicare patients who saw Dr. Farber in 2024, with an average age of 78.
Show 5 more questionsShow fewer questions
What services does Dr. Aaron Michael Farber bill to Medicare?
In 2024, Dr. Farber's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. Aaron Michael Farber go to medical school?
Dr. Farber graduated from NYIT College Of Osteopathic Medicine in 2025.
What drugs does Dr. Aaron Michael Farber prescribe most?
In 2024 Medicare Part D data, Dr. Farber's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass and Hydrocodone-Acetaminophen.
Has Dr. Aaron Michael Farber received payments from drug or device companies?
CMS Open Payments shows $267 in general payments to Dr. Farber from 5 companies from 2016 to 2024. The largest total came from Valeant Pharmaceuticals International.
How long has Dr. Aaron Michael Farber been practicing?
Dr. Farber graduated from medical school in 2025, 1 years ago.
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