Mary A. Stefanyszyn, MD
Ophthalmology Physician · Wynnewood, PA
Mary A. Stefanyszyn, MD is an ophthalmology physician with a practice address in Wynnewood, Pennsylvania, and NPI 1245239318, issued on Jul 20, 2005. Check the license (Pennsylvania MD022299E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mary A. Stefanyszyn
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- MD022299E PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 E Lancaster Ave, Wynnewood, PA 19096
- Phone
- (610) 649-1970
- Enumerated
- Jul 20, 2005
- Record last updated
- Jul 2, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 0885754 PA
- Medicare enrollment
- Enrolled (PECOS I20101130000258); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1978
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,088 in Pennsylvania → Look up another NPI →
Also registered at 100 E Lancaster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicholas Abate, DOStudent in an Organized Health Care Education/Training Program1508568676
- John Abramson, M.D.Gastroenterology Physician1710953633
- Sandra Abramson, MDCardiovascular Disease Physician1275538282
- Olivia Ackley, MDInternal Medicine Physician1174453930
- Ashley Adams, CRNPWomen's Health Nurse Practitioner1497225635
- Bonnie Adelman, M.S.P.A.Audiologist1568718088
Verify Mary A. Stefanyszyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD022299ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,452 Medicare Part D claims for 370 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims. 32 claims were for opioids.
Most prescribed
- Neomycin-Polymyxin-Dexameth390 claims
- Erythromycin328 claims
- Doxycycline Hyclate299 claims
- Prednisolone Acetate121 claims
- Tobramycin-Dexamethasone94 claims
- Prednisone48 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $98.02
3 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Annesley Flanagan Fischer Stefanyszyn And AssociatesWynnewood, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary A. Stefanyszyn among 1,088 ophthalmology physician records in Pennsylvania
Mary A. Stefanyszyn, MD is one of 1,088 ophthalmology physician records with a practice address in Pennsylvania. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 78% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1978 · median 2000 among the 734 with a school on file
- Record last updated2008 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Pennsylvania
There are 1,088 ophthalmology physician records in Pennsylvania.
All 1,088 in Pennsylvania → Every provider in Wynnewood → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Joseph Flanagan, MDWynnewood, PA 190961659370633
- Robert Penne, MDWynnewood, PA 190961215936380
- Louis Santore, M.D.Wynnewood, PA 190961548209166
- Behnaz Rouhani, M.D.Philadelphia, PA 191021205157484
- Stanley Borden, D.O.Philadelphia, PA 191031215373576
- Walter Harris, M.D.Philadelphia, PA 191031689730905
- William Sun, M.D.Philadelphia, PA 191031043247943
- Kristin Hammersmith, MDPhiladelphia, PA 191041437157187
Common questions
What is Mary A. Stefanyszyn, MD's NPI number?
Mary A. Stefanyszyn, MD's National Provider Identifier (NPI) is 1245239318, issued on Jul 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary A. Stefanyszyn, MD located?
The NPPES record lists a practice address at 100 E Lancaster Ave, Wynnewood, PA, 19096. Phone: (610) 649-1970. Providers update this record themselves, so call before visiting.
How can I verify Mary A. Stefanyszyn, MD's license?
NPPES lists Pennsylvania license number MD022299E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary A. Stefanyszyn, MD prescribe under Medicare Part D?
In 2024, Mary A. Stefanyszyn, MD had 1,452 Medicare Part D claims for 370 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Mary A. Stefanyszyn, MD's MIPS final score?
The 2023 MIPS final score is 88.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.