Dr. Eric A. Sieck, MD
- Medicare services, 2024
- 4,043
- Medicare patients, 2024
- 973
- Part D claims, 2024
- 2,880
- Industry payments
- $2,187
- Affiliated sites
- 2
- Practice address
- 1025 Maine Street, Quincy, IL 62301
- Practice phone
- Call (217) 222-6550
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Quincy Medical Group (Maine St)
Rural Health Clinic - Independent · Quincy, Illinois
Find Dr. Sieck'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. Eric A. Sieck is an ophthalmologist in Quincy, Illinois
Dr. Sieck practices at Quincy Medical Group (Maine St) in Quincy, Illinois.
Dr. Sieck's NPI, 1124091327, was assigned on February 8, 2006. Dr. Sieck graduated from University of Missouri, Kansas City, School of Medicine in 1985. Dr. Sieck holds Illinois license 036099924.
- NPI
- 1124091327NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012012107
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 222-6550
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eric A. Sieck practices at Quincy Medical Group (Maine St) in Quincy, Illinois
Dr. Sieck's primary practice is Quincy Medical Group (Maine St), at 1025 Maine Street, Quincy, IL 62301. The practice phone is (217) 222-6550.
- Quincy Medical Group (Maine St)1025 Maine Street, Quincy, IL 62301Phone(217) 222-6550
Source: Dmand AI Affiliation Data
Dr. Eric A. Sieck is affiliated with 2 sites of care and 1 medical group
Dr. Sieck's primary practice is Quincy Medical Group (Maine St) in Quincy, Illinois. The medical group on file is Quincy Medical Group. Dmand AI also links Dr. Sieck to 1 more group practice or clinic, named with a free account. Dr. Sieck's employer is on file too: a rural health clinic (rhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eric A. Sieck's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sieck practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Quincy Medical Group (Maine St) | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eric A. Sieck is one of 692 ophthalmologists in Illinois
Ophthalmology is Dr. Sieck's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Sieck is licensed in Illinois.
Specialties and state licenses
- Ophthalmology, IllinoisPrimary
Ophthalmologists near Dr. Sieck
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. Eric A. Sieck billed Medicare for 4,043 services in 2024
CMS data shows 4,043 Medicare services from Dr. Sieck across 16 procedure codes in 2024, for 973 Medicare patients. Medicare paid $297,240 for them.
Dr. Sieck's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,5262024: 2,6957%
- Surgery
- 2023: 7652024: 98829%
- Office and hospital visits
- 2023: 1952024: 1884%
- Imaging
- 2023: 1882024: 1729%
Where Dr. Sieck's Medicare services took place, 2024
- In an office3,73892%
- In a facility3058%
Dr. Sieck compared with the Illinois median for ophthalmologists, 2024
- Dr. Sieck
- Illinois median
- Medicare services
- 4,043vs 1,5442.6 times
- Medicare patients
- 973vs 57769% above
- Part D claims
- 2,764vs 5824.7 times
Medians across 710 ophthalmologists in Illinois with Dmand AI profiles that report each measure.
Dr. Sieck'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. Sieck and other ophthalmologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric A. Sieck treated 973 Medicare patients in 2024, average age 76
CMS counts 973 Medicare patients who saw Dr. Sieck in 2024. The largest group is 75 to 84, with 402 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sieck's median patient age at 72, with 60% women.
Dr. Sieck's Medicare patients by age, 2024
Dr. Sieck's Medicare patients by sex, 2024
- Women59461%
- Men37939%
Chronic conditions among Dr. Sieck's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis48%
- Diabetes29%
- Ischemic heart disease24%
- Chronic kidney disease23%
- Atrial fibrillation20%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sieck's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eric A. Sieck wrote 2,880 Medicare Part D claims in 2024
In 2024, Dr. Sieck wrote 2,880 Medicare Part D claims for 547 patients. 69% of them were for generic drugs. CMS names the drug for 2,764 of them, across 27 drugs with 11 or more claims each, at $161,464 in total drug cost. In 2023, CMS named 2,527 claims across 26 drugs.
Dr. Sieck's Part D claims by kind of drug, 2024
- Generic2,000 claims69%
- Brand-name880 claims31%
Dr. Sieck'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. Sieck's Part D claims, 2024
- Antibiotics3%73 of 2,880 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: 2,5272024: 2,7649%
Drugs named by CMS: 27 in 2024, 26 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. Eric A. Sieck ranks in the 94th percentile for cataract surgery in Medicare
Dr. Sieck accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 429 procedures of cataract surgery by Dr. Sieck, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Sieck ranks in Medicare procedure volume
- Cataract surgery
- 94th percentile429 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Eric A. Sieck received $2,187 in industry payments from 2016 to 2025
CMS Open Payments shows 78 general payments to Dr. Sieck from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $987.
General payments to Dr. Sieck by program year, 2016 to 2025
Companies that paid Dr. Sieck 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. Eric A. Sieck graduated from University of Missouri, Kansas City, School of Medicine
Dr. Sieck graduated from University of Missouri, Kansas City, School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eric A. Sieck'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)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. Eric A. Sieck
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. Eric A. Sieck's NPI number?
Dr. Eric A. Sieck's NPI number is 1124091327. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric A. Sieck?
Dr. Eric A. Sieck is an ophthalmologist in Quincy, Illinois. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Eric A. Sieck practice?
Dr. Sieck practices at 1025 Maine Street, Quincy, IL 62301. Dr. Sieck's primary practice is Quincy Medical Group (Maine St) in Quincy, Illinois. Dmand AI also links Dr. Sieck to 1 group practice or clinic.
What is Dr. Eric A. Sieck's office phone number?
The practice phone on file for Dr. Sieck is (217) 222-6550.
What is Dr. Eric A. Sieck's medical license number?
Dr. Sieck holds Illinois license 036099924.
What medical group is Dr. Eric A. Sieck part of?
Dr. Sieck is linked to Quincy Medical Group.
Does Dr. Eric A. Sieck accept Medicare?
Yes. CMS data shows Dr. Sieck billed Medicare for 4,043 services in 2024, and Dr. Sieck accepts Medicare assignment.
How many Medicare patients does Dr. Eric A. Sieck see?
CMS counts 973 Medicare patients who saw Dr. Sieck in 2024, with an average age of 76.
What services does Dr. Eric A. Sieck bill to Medicare?
In 2024, Dr. Sieck's most billed Medicare services were surgery: eye (66984), eye exam or test (92014) and eye exam or test (92012).
Where did Dr. Eric A. Sieck go to medical school?
Dr. Sieck graduated from University of Missouri, Kansas City, School of Medicine in 1985.
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What drugs does Dr. Eric A. Sieck prescribe most?
In 2024 Medicare Part D data, Dr. Sieck's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Timolol Maleate.
Has Dr. Eric A. Sieck received payments from drug or device companies?
CMS Open Payments shows $2,187 in general payments to Dr. Sieck from 21 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Eric A. Sieck been practicing?
Dr. Sieck graduated from medical school in 1985, 41 years ago.
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