Dr. Brian Siegan Herst, MD
- Medicare services, 2024
- 2,786
- Medicare patients, 2024
- 1,121
- Part D claims, 2024
- 2,212
- MIPS score, 2024
- 90
- Hospital affiliations
- 2
- Practice address
- 2900 N Lake Shore Dr, Chicago, IL 60657
- Practice phone
- Call (773) 665-3827
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension Illinois - Imaging Chicago
Mammography / Breast Imaging Center · Chicago, Illinois
Find Dr. Herst's professional email, personal email and mobile number
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Dr. Brian Siegan Herst is an ophthalmologist in Chicago, Illinois
Dr. Herst practices at Ascension Illinois - Imaging Chicago in Chicago, Illinois.
Dr. Herst's NPI, 1801235734, was assigned on June 25, 2013. Dr. Herst graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2013. Dr. Herst holds Illinois license 036147533.
- NPI
- 1801235734NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800187436
- NPI enumeration date
- June 25, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 665-3827
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Siegan Herst practices at Ascension Illinois - Imaging Chicago in Chicago, Illinois
Dr. Herst's primary practice is Ascension Illinois - Imaging Chicago, at 2900 N Lake Shore Dr, Chicago, IL 60657. The practice phone is (773) 665-3827.
- Ascension Illinois - Imaging Chicago2900 N Lake Shore Dr, Chicago, IL 60657Phone(773) 665-3827
Source: Dmand AI Affiliation Data
Dr. Brian Siegan Herst is affiliated with 5 sites of care and 2 medical groups
Dr. Herst's primary practice is Ascension Illinois - Imaging Chicago in Chicago, Illinois. Dr. Herst is also affiliated with Rush University Medical Center. Dmand AI also links Dr. Herst to 1 more hospital, 2 medical groups, 1 group practice or clinic and 1 ambulatory surgery center, 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. Brian Siegan Herst's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Herst practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Illinois - Imaging Chicago | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Siegan Herst is one of 692 ophthalmologists in Illinois
Ophthalmology is Dr. Herst's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Herst's licenses on file in 2 states: Illinois and Louisiana.
Specialties and state licenses
- Ophthalmology, IllinoisPrimary
- Louisiana license
Ophthalmologists near Dr. Herst
Counts of ophthalmologists 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. Brian Siegan Herst billed Medicare for 2,786 services in 2024
CMS data shows 2,786 Medicare services from Dr. Herst across 16 procedure codes in 2024, for 1,121 Medicare patients. Medicare paid $235,899 for them.
Dr. Herst's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,3552024: 1,66923%
- Office and hospital visits
- 2023: 7032024: 86523%
- Surgery
- 2023: 1882024: 1823%
- Imaging
- 2023: 222024: 4291%
- Lab and pathology
- 2023: 02024: 28
Where Dr. Herst's Medicare services took place, 2024
- In an office2,63294%
- In a facility1546%
Dr. Herst compared with the Illinois median for ophthalmologists, 2024
- Dr. Herst
- Illinois median
- Medicare services
- 2,786vs 1,54480% above
- Medicare patients
- 1,121vs 57794% above
- Part D claims
- 2,114vs 5823.6 times
Medians across 710 ophthalmologists in Illinois with Dmand AI profiles that report each measure.
Dr. Herst'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. Herst and other ophthalmologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Siegan Herst treated 1,121 Medicare patients in 2024, average age 77
CMS counts 1,121 Medicare patients who saw Dr. Herst in 2024. The largest group is 65 to 74, with 467 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Herst's median patient age at 73, with 53% women.
Dr. Herst's Medicare patients by age, 2024
Dr. Herst's Medicare patients by sex, 2024
- Women66459%
- Men45741%
Chronic conditions among Dr. Herst's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis44%
- Diabetes30%
- Ischemic heart disease25%
- Chronic kidney disease20%
- Osteoporosis19%
- Anxiety17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Herst's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Siegan Herst wrote 2,212 Medicare Part D claims in 2024
In 2024, Dr. Herst wrote 2,212 Medicare Part D claims for 468 patients. 62% of them were for generic drugs. CMS names the drug for 2,114 of them, across 25 drugs with 11 or more claims each, at $288,781 in total drug cost. In 2023, CMS named 1,740 claims across 25 drugs.
Dr. Herst's Part D claims by kind of drug, 2024
- Generic1,367 claims62%
- Brand-name845 claims38%
Dr. Herst'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,7402024: 2,11421%
Drugs named by CMS: 25 in 2024, 25 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. Brian Siegan Herst scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Herst for performance year 2024, reported individually. Dr. Herst accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 241 procedures of cataract surgery by Dr. Herst, more than 86% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Herst's MIPS scores, performance year 2024
- 90of 100Final score
- 94.4of 100Quality
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Herst ranks in Medicare procedure volume
- Cataract surgery
- 86th percentile241 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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. Brian Siegan Herst received $9,378 in industry payments from 2016 to 2025
CMS Open Payments shows 245 general payments to Dr. Herst from 34 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 63% of the total. Alcon Laboratories Inc paid the most, $1,683.
General payments to Dr. Herst by program year, 2016 to 2025
General payments to Dr. Herst by kind, 2016 to 2025
- Food and beverage$5,88463%
- Consulting fees$3,27535%
- Education$1552%
- Gifts$450%
- Entertainment$200%
Companies that paid Dr. Herst 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. Brian Siegan Herst graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Herst graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Siegan Herst'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)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. Brian Siegan Herst
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. Brian Siegan Herst's NPI number?
Dr. Brian Siegan Herst's NPI number is 1801235734. It was assigned on June 25, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Siegan Herst?
Dr. Brian Siegan Herst is an ophthalmologist in Chicago, Illinois. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Brian Siegan Herst practice?
Dr. Herst practices at 2900 N Lake Shore Dr, Chicago, IL 60657. Dr. Herst's primary practice is Ascension Illinois - Imaging Chicago in Chicago, Illinois. Dmand AI also links Dr. Herst to 1 hospital, 2 medical groups, 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Brian Siegan Herst's office phone number?
The practice phone on file for Dr. Herst is (773) 665-3827.
What is Dr. Brian Siegan Herst's medical license number?
Dr. Herst holds Illinois license 036147533, one of the licenses on file in 2 states.
Which states has Dr. Brian Siegan Herst been licensed in?
Dmand AI has state licenses on file for Dr. Herst in Illinois and Louisiana.
Which hospitals is Dr. Brian Siegan Herst affiliated with?
Dr. Herst is affiliated with Rush University Medical Center. Dmand AI links Dr. Herst to 1 more hospital.
Does Dr. Brian Siegan Herst accept Medicare?
Yes. CMS data shows Dr. Herst billed Medicare for 2,786 services in 2024, and Dr. Herst accepts Medicare assignment.
What is Dr. Brian Siegan Herst's MIPS score?
Dr. Herst's MIPS final score for performance year 2024 is 90 out of 100, reported individually.
How many Medicare patients does Dr. Brian Siegan Herst see?
CMS counts 1,121 Medicare patients who saw Dr. Herst in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Brian Siegan Herst bill to Medicare?
In 2024, Dr. Herst's most billed Medicare services were eye exam or test (92014), office visit, established patient (99214) and eye exam or test (92133).
Where did Dr. Brian Siegan Herst go to medical school?
Dr. Herst graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2013.
What drugs does Dr. Brian Siegan Herst prescribe most?
In 2024 Medicare Part D data, Dr. Herst's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. Brian Siegan Herst received payments from drug or device companies?
CMS Open Payments shows $9,378 in general payments to Dr. Herst from 34 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Brian Siegan Herst been practicing?
Dr. Herst graduated from medical school in 2013, 13 years ago.
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