Mary Stefanyszyn, MD
NPI 1245239318 · Ophthalmology Physician · Wynnewood, PA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Stefanyszyn, MD is a Ophthalmology Physician provider in Wynnewood, PA (NPI 1245239318).
Provider details
- NPI number
- 1245239318
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD022299E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
962 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 341 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 238 | $138 |
| Injection of Chemical for Paralysis of Nerve Muscles on Side of Face64612 | 92 | $165 |
| Photography of Content of Eyes92285 | 52 | $25 |
| Exam of Visual Field With Extended Testing92083 | 50 | $46 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 37 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 390 | 206 |
| Erythromycin Basebrand: Erythromycin | 328 | 176 |
| Doxycycline Hyclate | 299 | 198 |
| Prednisolone Acetate | 121 | 95 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 94 | 65 |
| Prednisone | 48 | 25 |
| Perfluorohexyloctane/Pfbrand: Miebo |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$98 across 3 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
- 2005-07-20
- Last updated
- 2008-07-02
Frequently asked questions
- What is Mary Stefanyszyn's NPI number?
- Mary Stefanyszyn's National Provider Identifier (NPI) is 1245239318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Stefanyszyn's specialty?
- Mary Stefanyszyn is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Stefanyszyn located?
- Mary Stefanyszyn's practice location on file with NPPES is 100 E Lancaster Ave, Wynnewood, PA 19096-3450.
- What is Mary Stefanyszyn's phone number?
- The practice phone number listed in the NPPES registry for Mary Stefanyszyn is (610) 649-1970.
- Does Mary Stefanyszyn accept Medicare?
- Mary Stefanyszyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Stefanyszyn's NPI active?
- Yes — Mary Stefanyszyn's NPI (1245239318) is active in the NPPES registry as of the last update on 2008-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.