Dr. Benjamin A. Feinzimer, DO
- Medicare services, 2024
- 622
- Medicare patients, 2024
- 613
- Part D claims, 2024
- 206
- Hospital affiliations
- 5
- Industry payments
- $2,601
- Practice address
- 2650 Ridge Ave, Evanston, IL 60201
- Practice phone
- Call (847) 570-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Feinzimer's professional email, personal email and mobile number
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Dr. Benjamin A. Feinzimer is an emergency medicine physician in Evanston, Illinois
Dr. Feinzimer practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.
Dr. Feinzimer's NPI, 1205003142, was assigned on May 9, 2008. Dr. Feinzimer graduated from Midwestern University, Chicago College of Osteopathic Med in 2008. Dr. Feinzimer holds Wisconsin license 55393-21.
- NPI
- 1205003142NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375712672
- NPI enumeration date
- May 9, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 570-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Benjamin A. Feinzimer practices at Evanston Hospital in Evanston, Illinois
Dr. Feinzimer's primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.
- Evanston Hospital2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000
Source: Dmand AI Affiliation Data
Dr. Benjamin A. Feinzimer is affiliated with 7 sites of care and 8 medical groups
Dr. Feinzimer's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dr. Feinzimer is also affiliated with Aspirus Rhinelander Hospital. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Feinzimer to 3 more hospitals, 7 medical groups, 1 group practice or clinic and 1 rural health clinic, 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. Benjamin A. Feinzimer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feinzimer practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Evanston Hospital | Available with a free account |
| +6 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Benjamin A. Feinzimer is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Feinzimer's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Feinzimer's licenses on file in 4 states: Wisconsin, California, Illinois and Ohio.
Specialties and state licenses
- Emergency medicine, WisconsinPrimary
- California license
- Illinois license
- Ohio license
Emergency medicine physicians near Dr. Feinzimer
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. Benjamin A. Feinzimer billed Medicare for 622 services in 2024
CMS data shows 622 Medicare services from Dr. Feinzimer across 5 procedure codes in 2024, for 613 Medicare patients. Medicare paid $78,221 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Feinzimer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4882024: 61125%
- Surgery
- 2023: 02024: 11
Dr. Feinzimer compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Feinzimer
- Illinois median
- Medicare services
- 622vs 2742.3 times
- Medicare patients
- 613vs 2732.2 times
- Part D claims
- 34vs 4524% below
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Feinzimer'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. Feinzimer 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. Benjamin A. Feinzimer treated 613 Medicare patients in 2024, average age 78
CMS counts 613 Medicare patients who saw Dr. Feinzimer in 2024. The largest group is 75 to 84, with 226 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.89, 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. Feinzimer's median patient age at 57, with 57% women.
Dr. Feinzimer's Medicare patients by age, 2024
Dr. Feinzimer's Medicare patients by sex, 2024
- Women34957%
- Men26443%
Chronic conditions among Dr. Feinzimer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Chronic kidney disease39%
- Ischemic heart disease38%
- Mood disorders37%
- Anxiety34%
- Atrial fibrillation34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Feinzimer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Benjamin A. Feinzimer wrote 206 Medicare Part D claims in 2024
In 2024, Dr. Feinzimer wrote 206 Medicare Part D claims for 166 patients. 93% of them were for generic drugs. CMS names the drug for 34 of them, across 2 drugs with 11 or more claims each, at $129 in total drug cost. In 2022, CMS named 52 claims across 4 drugs.
Dr. Feinzimer's Part D claims by kind of drug, 2024
- Generic191 claims93%
- Brand-name15 claims7%
Dr. Feinzimer'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. Feinzimer's Part D claims, 2024
- Opioids15%31 of 206 claims
- Antibiotics30%62 of 206 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 522024: 3435%
Drugs named by CMS: 2 in 2024, 4 in 2022.
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
How Dr. Benjamin A. Feinzimer takes part in Medicare
Dr. Feinzimer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Benjamin A. Feinzimer received $2,601 in industry payments from 2016 to 2025
CMS Open Payments shows 11 general payments to Dr. Feinzimer from 5 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 63% of the total. Jan Medical Inc. paid the most, $1,650.
General payments to Dr. Feinzimer by program year, 2016 to 2025
General payments to Dr. Feinzimer by kind, 2016 to 2025
- Consulting fees$1,65063%
- Food and beverage$66526%
- Travel and lodging$28711%
Companies that paid Dr. Feinzimer 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. Benjamin A. Feinzimer graduated from Midwestern University, Chicago College of Osteopathic Med
Dr. Feinzimer graduated from Midwestern University, Chicago College of Osteopathic Med in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Benjamin A. Feinzimer'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) |
| 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. Benjamin A. Feinzimer
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. Benjamin A. Feinzimer's NPI number?
Dr. Benjamin A. Feinzimer's NPI number is 1205003142. It was assigned on May 9, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Benjamin A. Feinzimer?
Dr. Benjamin A. Feinzimer is an emergency medicine physician in Evanston, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Benjamin A. Feinzimer practice?
Dr. Feinzimer practices at 2650 Ridge Ave, Evanston, IL 60201. Dr. Feinzimer's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links Dr. Feinzimer to 3 hospitals, 7 medical groups, 1 group practice or clinic and 1 rural health clinic.
What is Dr. Benjamin A. Feinzimer's office phone number?
The practice phone on file for Dr. Feinzimer is (847) 570-2000.
What is Dr. Benjamin A. Feinzimer's medical license number?
Dr. Feinzimer holds Wisconsin license 55393-21, one of the licenses on file in 4 states.
Which states has Dr. Benjamin A. Feinzimer been licensed in?
Dmand AI has state licenses on file for Dr. Feinzimer in Wisconsin, California, Illinois and Ohio.
Which hospitals is Dr. Benjamin A. Feinzimer affiliated with?
Dr. Feinzimer practices at Evanston Hospital in Evanston, Illinois. Dr. Feinzimer is also affiliated with Aspirus Rhinelander Hospital. Dmand AI links Dr. Feinzimer to 3 more hospitals.
What medical group is Dr. Benjamin A. Feinzimer part of?
Dr. Feinzimer is linked to Endeavor Health Medical Group. Dmand AI links Dr. Feinzimer to 7 more medical groups.
Does Dr. Benjamin A. Feinzimer accept Medicare?
Yes. CMS data shows Dr. Feinzimer billed Medicare for 622 services in 2024, and Dr. Feinzimer accepts Medicare assignment.
How many Medicare patients does Dr. Benjamin A. Feinzimer see?
CMS counts 613 Medicare patients who saw Dr. Feinzimer in 2024, with an average age of 78.
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What services does Dr. Benjamin A. Feinzimer bill to Medicare?
In 2024, Dr. Feinzimer's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Where did Dr. Benjamin A. Feinzimer go to medical school?
Dr. Feinzimer graduated from Midwestern University, Chicago College of Osteopathic Med in 2008.
What drugs does Dr. Benjamin A. Feinzimer prescribe most?
In 2024 Medicare Part D data, Dr. Feinzimer's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Cephalexin.
Has Dr. Benjamin A. Feinzimer received payments from drug or device companies?
CMS Open Payments shows $2,601 in general payments to Dr. Feinzimer from 5 companies from 2016 to 2025. The largest total came from Jan Medical Inc.
How long has Dr. Benjamin A. Feinzimer been practicing?
Dr. Feinzimer graduated from medical school in 2008, 18 years ago.
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