Sandra Sieminski, M.D.
NPI 1578739793 · Ophthalmology Physician · Buffalo, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandra Sieminski, M.D. is a Ophthalmology Physician provider in Buffalo, NY (NPI 1578739793).
Provider details
- NPI number
- 1578739793
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,243 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Problem Focused Exam of Visual System92012 | 283 | $86 |
| Imaging of Optic Nerve92133 | 214 | $35 |
| Established Patient Complete Exam of Visual System92014 | 207 | $121 |
| Exam of Visual Field With Extended Testing92083 | 141 | $61 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 68 | $395 |
| Exam of the Internal Drainage System of Eye92020 | 54 | $26 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,755 | 445 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 914 | 227 |
| Timolol Maleate | 490 | 128 |
| Brimonidine Tartrate | 386 | 113 |
| Bimatoprostbrand: Lumigan | 370 | 95 |
| Prednisolone Acetate | 351 | 230 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 203 | 52 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,827 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-07
- Last updated
- 2023-03-07
Frequently asked questions
- What is Sandra Sieminski's NPI number?
- Sandra Sieminski's National Provider Identifier (NPI) is 1578739793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Sieminski's specialty?
- Sandra Sieminski is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Sandra Sieminski located?
- Sandra Sieminski's practice location on file with NPPES is 1176 Main St, Buffalo, NY 14209.
- What is Sandra Sieminski's phone number?
- The practice phone number listed in the NPPES registry for Sandra Sieminski is (716) 881-7900.
- Does Sandra Sieminski accept Medicare?
- Sandra Sieminski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandra Sieminski's NPI active?
- Yes — Sandra Sieminski's NPI (1578739793) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.