Free Radic Biol Med
Dr. Sandra Fernando Sieminski, MD
- Medicare services, 2024
- 1,243
- Medicare patients, 2024
- 384
- Part D claims, 2024
- 6,247
- Publications
- 16
- Clinical trials
- 1
- Practice address
- 3540 Sheridan Dr, Buffalo, NY 14226
- Practice phone
- Call (716) 834-0013
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Ophthalmology Services Inc.
Buffalo, New York
Find Dr. Sieminski'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. Sandra Fernando Sieminski is an ophthalmologist in Buffalo, New York
Dr. Sieminski practices at University Ophthalmology Services Inc. in Buffalo, New York.
Dr. Sieminski's NPI, 1578739793, was assigned on May 7, 2008. Dr. Sieminski graduated from University of Pittsburgh School of Medicine in 2005. Dr. Sieminski holds New York license 252535.
- NPI
- 1578739793NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739205097
- NPI enumeration date
- May 7, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 834-0013
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sandra Fernando Sieminski practices at University Ophthalmology Services Inc. in Buffalo, New York
Dr. Sieminski's primary practice is University Ophthalmology Services Inc., at 3540 Sheridan Dr, Buffalo, NY 14226 in Erie County. The practice phone is (716) 834-0013.
- University Ophthalmology Services Inc.3540 Sheridan Dr, Buffalo, NY 14226 · Erie CountyPhone(716) 834-0013
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sandra Fernando Sieminski is affiliated with 4 sites of care and 1 medical group
Dr. Sieminski's primary practice is University Ophthalmology Services Inc. in Buffalo, New York. Dr. Sieminski is also affiliated with Mercy Hospital of Buffalo. Dmand AI also links Dr. Sieminski to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sandra Fernando Sieminski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sieminski practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Ophthalmology Services Inc. | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Sandra Fernando Sieminski is one of 1,467 ophthalmologists in New York
Ophthalmology is Dr. Sieminski's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Sieminski is licensed in New York.
Specialties and state licenses
- Ophthalmology, New YorkPrimary
Ophthalmologists near Dr. Sieminski
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. Sandra Fernando Sieminski billed Medicare for 1,243 services in 2024
CMS data shows 1,243 Medicare services from Dr. Sieminski across 16 procedure codes in 2024, for 384 Medicare patients. Medicare paid $117,220 for them.
Dr. Sieminski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,2082024: 1,05113%
- Surgery
- 2023: 1592024: 1696%
- Imaging
- 2023: 332024: 2330%
Where Dr. Sieminski's Medicare services took place, 2024
- In an office1,11289%
- In a facility13111%
Dr. Sieminski compared with the New York median for ophthalmologists, 2024
- Dr. Sieminski
- New York median
- Medicare services
- 1,243vs 1,258Close to median
- Medicare patients
- 384vs 43612% below
- Part D claims
- 6,143vs 6479.5 times
Medians across 1,557 ophthalmologists in New York with Dmand AI profiles that report each measure.
Dr. Sieminski'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.
Need commercial claims for Dr. Sieminski?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sieminski and other ophthalmologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sandra Fernando Sieminski treated 384 Medicare patients in 2024, average age 72
CMS counts 384 Medicare patients who saw Dr. Sieminski in 2024. The largest group is 65 to 74, with 145 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 34% are also on Medicaid. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sieminski's median patient age at 74, with 55% women.
Dr. Sieminski's Medicare patients by age, 2024
Dr. Sieminski's Medicare patients by sex, 2024
- Women22057%
- Men16443%
Chronic conditions among Dr. Sieminski's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis38%
- Diabetes33%
- Chronic kidney disease30%
- Ischemic heart disease24%
- Anxiety23%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sieminski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sandra Fernando Sieminski wrote 6,247 Medicare Part D claims in 2024
In 2024, Dr. Sieminski wrote 6,247 Medicare Part D claims for 995 patients. 66% of them were for generic drugs. CMS names the drug for 6,143 of them, across 31 drugs with 11 or more claims each, at $727,254 in total drug cost. In 2023, CMS named 6,586 claims across 32 drugs.
Dr. Sieminski's Part D claims by kind of drug, 2024
- Generic4,128 claims66%
- Brand-name2,119 claims34%
Dr. Sieminski'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: 6,5862024: 6,1437%
Drugs named by CMS: 31 in 2024, 32 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. Sandra Fernando Sieminski scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Sieminski for performance year 2024, reported as part of a group. Dr. Sieminski accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 135 procedures of cataract surgery by Dr. Sieminski, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Sieminski's MIPS scores, performance year 2024
- 94of 100Final score
- 85.1of 100Quality
- 95of 100Promoting Interoperability
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Sieminski ranks in Medicare procedure volume
- Cataract surgery
- 78th percentile135 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Sandra Fernando Sieminski has 16 publications on record
Dmand AI links 16 papers to Dr. Sieminski, published from 2012 to 2025. 2020 was the busiest year, with 2. The most frequent topics are Intraocular Pressure, Tonometry, Ocular and Ciliary Body. Dr. Sieminski has published most often in Am J Ophthalmol Case Rep. Dr. Sieminski's most frequent co-authors are Patrice M. Hicks, MD, Adam R. Siedlecki and Preethi S. Ganapathy, MD.
Dr. Sieminski's papers by year, 2012 to 2025
Topics Dr. Sieminski writes about most
- Intraocular Pressure
- Tonometry, Ocular
- Ciliary Body
- Exfoliation Syndrome
- Glaucoma
Dr. Sieminski's most frequent co-authors
- Patrice M. Hicks, MD4 shared papers
- Adam R. Siedlecki3 shared papers
- Preethi S. Ganapathy, MD2 shared papers
Recent publications by Dr. Sieminski
Int J Mol Sci
See who Dr. Sieminski researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sieminski works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Sandra Fernando Sieminski has worked on 1 clinical trial
Dmand AI links Dr. Sieminski to 1 clinical trial. Conditions studied include Glaucoma and Ocular Hypertension.
Conditions in Dr. Sieminski's trials
- Glaucoma
- Ocular Hypertension
Recent clinical trials with Dr. Sieminski
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Sandra Fernando Sieminski received $71,038 in industry payments from 2016 to 2025
CMS Open Payments shows 205 general payments to Dr. Sieminski from 15 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 29% of the total. Iridex Corporation paid the most, $23,905. It also lists 2 research payments totaling $3,412 in 2025.
General payments to Dr. Sieminski by program year, 2016 to 2025
General payments to Dr. Sieminski by kind, 2016 to 2025
- Speaker and faculty fees$19,53229%
- Honoraria$14,38322%
- Food and beverage$10,19715%
- Travel and lodging$9,81615%
- Other$12,65019%
Companies that paid Dr. Sieminski 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. Sandra Fernando Sieminski graduated from University of Pittsburgh School of Medicine
Dr. Sieminski graduated from University of Pittsburgh School of Medicine in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sandra Fernando Sieminski's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Sandra Fernando Sieminski
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. Sandra Fernando Sieminski's NPI number?
Dr. Sandra Fernando Sieminski's NPI number is 1578739793. It was assigned on May 7, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Sandra Fernando Sieminski?
Dr. Sandra Fernando Sieminski is an ophthalmologist in Buffalo, New York. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Sandra Fernando Sieminski practice?
Dr. Sieminski practices at 3540 Sheridan Dr, Buffalo, NY 14226. Dr. Sieminski's primary practice is University Ophthalmology Services Inc. in Buffalo, New York. Dmand AI also links Dr. Sieminski to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Sandra Fernando Sieminski's office phone number?
The practice phone on file for Dr. Sieminski is (716) 834-0013.
What is Dr. Sandra Fernando Sieminski's medical license number?
Dr. Sieminski holds New York license 252535.
Which hospitals is Dr. Sandra Fernando Sieminski affiliated with?
Dr. Sieminski is affiliated with Mercy Hospital of Buffalo. Dmand AI links Dr. Sieminski to 1 more hospital.
Does Dr. Sandra Fernando Sieminski accept Medicare?
Yes. CMS data shows Dr. Sieminski billed Medicare for 1,243 services in 2024, and Dr. Sieminski accepts Medicare assignment.
What is Dr. Sandra Fernando Sieminski's MIPS score?
Dr. Sieminski's MIPS final score for performance year 2024 is 94 out of 100, reported as part of a group.
How many Medicare patients does Dr. Sandra Fernando Sieminski see?
CMS counts 384 Medicare patients who saw Dr. Sieminski in 2024, with an average age of 72.
What services does Dr. Sandra Fernando Sieminski bill to Medicare?
In 2024, Dr. Sieminski's most billed Medicare services were eye exam or test (92012), eye exam or test (92133) and eye exam or test (92014).
Show 6 more questionsShow fewer questions
Where did Dr. Sandra Fernando Sieminski go to medical school?
Dr. Sieminski graduated from University of Pittsburgh School of Medicine in 2005.
What drugs does Dr. Sandra Fernando Sieminski prescribe most?
In 2024 Medicare Part D data, Dr. Sieminski's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. Sandra Fernando Sieminski received payments from drug or device companies?
CMS Open Payments shows $71,038 in general payments to Dr. Sieminski from 15 companies from 2016 to 2025. The largest total came from Iridex Corporation.
How long has Dr. Sandra Fernando Sieminski been practicing?
Dr. Sieminski graduated from medical school in 2005, 21 years ago.
Does Dr. Sandra Fernando Sieminski do research?
Dmand AI links 16 publications to Dr. Sieminski, published from 2012 to 2025. Dr. Sieminski has worked on 1 clinical trial.
Who does Dr. Sandra Fernando Sieminski publish with?
Dr. Sieminski's most frequent co-authors are Patrice M. Hicks, MD (4 shared papers), Adam R. Siedlecki (3 shared papers) and Preethi S. Ganapathy, MD (2 shared papers).
Selling to ophthalmology practices?
See ophthalmologists in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card