Dr. Sandra Fernando Sieminski, MD

  • Buffalo, NY
  • Ophthalmologist
NPI1578739793PAC ID9739205097
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
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Personal email
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Mobile number
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Social profiles

Primary practice

University Ophthalmology Services Inc.

Buffalo, New York

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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 and contact details
Medicare PAC ID
9739205097
NPI enumeration date
May 7, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(716) 834-0013
Professional email
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Personal email
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Mobile number
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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.

See all 5 affiliations for Dr. Sieminski

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.

EHR by site
SiteEHR vendor and product
University Ophthalmology Services Inc.Available with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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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 YorkPrimaryLicense 252535 · taxonomy 207W00000X

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.

Medicare services, 20241,243
Medicare patients384
Paid by Medicare$117,220
Procedure codes16

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.

See all procedures by Dr. Sieminski

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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.

Medicare patients, 2024384
Average age72
Average risk score1.31
Also on Medicaid34%

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

  1. High cholesterol75%
  2. High blood pressure72%
  3. Arthritis38%
  4. Diabetes33%
  5. Chronic kidney disease30%
  6. Ischemic heart disease24%
  7. Anxiety23%
  8. 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.

Part D claims, 20246,247
Drugs named by CMS31
Total drug cost$727,254
Part D patients995

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.

See all prescribing by Dr. Sieminski

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)

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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.

Papers16
Years published2012 to 2025

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

Recent publications by Dr. Sieminski

See all 16 publications and co-authors

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.

How network discovery works

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

$71Kin total
  • 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.

See all payments to Dr. Sieminski

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.

  1. Medical schoolUniversity of Pittsburgh School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Sandra Fernando Sieminski's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation 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).

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