Dr. Mary A. Stefanyszyn, MD
- Medicare services, 2024
- 10,162
- Medicare patients, 2024
- 399
- Part D claims, 2024
- 1,452
- MIPS score, 2024
- 96
- Hospital affiliations
- 1
- Practice address
- 100 E Lancaster Ave, Wayne, PA 19087
- Practice phone
- Call (610) 645-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lankenau Medical Center
Wayne, Pennsylvania
Find Dr. Stefanyszyn'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. Mary A. Stefanyszyn is an ophthalmologist in Wayne, Pennsylvania
Dr. Stefanyszyn practices at Lankenau Medical Center in Wayne, Pennsylvania.
Dr. Stefanyszyn's NPI, 1245239318, was assigned on July 20, 2005. Dr. Stefanyszyn graduated from Harvard Medical School in 1978. Dr. Stefanyszyn holds Pennsylvania license MD022299E.
- NPI
- 1245239318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991991127
- NPI enumeration date
- July 20, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (610) 645-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary A. Stefanyszyn practices at Lankenau Medical Center in Wayne, Pennsylvania
Dr. Stefanyszyn's primary practice is Lankenau Medical Center, at 100 E Lancaster Ave, Wayne, PA 19087 in Delaware County. The practice phone is (610) 645-2000.
- Lankenau Medical Center100 E Lancaster Ave, Wayne, PA 19087 · Delaware CountyPhone(610) 645-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mary A. Stefanyszyn is affiliated with 2 sites of care and 2 medical groups
Dr. Stefanyszyn's primary practice is Lankenau Medical Center in Wayne, Pennsylvania. Dr. Stefanyszyn is also affiliated with Lankenau Medical Center. Dmand AI also links Dr. Stefanyszyn to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary A. Stefanyszyn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stefanyszyn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lankenau Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary A. Stefanyszyn is one of 843 ophthalmologists in Pennsylvania
Ophthalmology is Dr. Stefanyszyn's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Stefanyszyn is licensed in Pennsylvania.
Specialties and state licenses
- Ophthalmology, PennsylvaniaPrimary
Ophthalmologists near Dr. Stefanyszyn
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. Mary A. Stefanyszyn billed Medicare for 10,162 services in 2024
CMS data shows 10,162 Medicare services from Dr. Stefanyszyn across 13 procedure codes in 2024, for 399 Medicare patients. Medicare paid $188,652 for them. Every service was in an office.
Dr. Stefanyszyn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 10,2012024: 9,20010%
- Office and hospital visits
- 2023: 5882024: 6165%
- Surgery
- 2023: 3062024: 24420%
- Tests and treatments
- 2023: 1112024: 1028%
Dr. Stefanyszyn compared with the Pennsylvania median for ophthalmologists, 2024
- Dr. Stefanyszyn
- Pennsylvania median
- Medicare services
- 10,162vs 1,3367.6 times
- Medicare patients
- 399vs 52424% below
- Part D claims
- 1,380vs 6202.2 times
Medians across 854 ophthalmologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Stefanyszyn'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stefanyszyn and other ophthalmologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary A. Stefanyszyn treated 399 Medicare patients in 2024, average age 75
CMS counts 399 Medicare patients who saw Dr. Stefanyszyn in 2024. The largest group is 65 to 74, with 191 patients. 75% of them have high cholesterol, and 63% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Stefanyszyn's median patient age at 71, with 83% women.
Dr. Stefanyszyn's Medicare patients by age, 2024
Dr. Stefanyszyn's Medicare patients by sex, 2024
- Women33484%
- Men6516%
Chronic conditions among Dr. Stefanyszyn's Medicare patients, 2024
- High cholesterol75%
- High blood pressure63%
- Arthritis58%
- Osteoporosis34%
- Anxiety32%
- Mood disorders26%
- Depression23%
- Ischemic heart disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stefanyszyn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women83%
- Men16%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary A. Stefanyszyn wrote 1,452 Medicare Part D claims in 2024
In 2024, Dr. Stefanyszyn wrote 1,452 Medicare Part D claims for 370 patients. 69% of them were for generic drugs. CMS names the drug for 1,380 of them, across 12 drugs with 11 or more claims each, at $39,737 in total drug cost. In 2023, CMS named 1,244 claims across 10 drugs.
Dr. Stefanyszyn's Part D claims by kind of drug, 2024
- Generic996 claims69%
- Brand-name456 claims31%
Dr. Stefanyszyn'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.
Drug classes CMS tracks in Dr. Stefanyszyn's Part D claims, 2024
- Opioids2%32 of 1,452 claims
- Antibiotics22%325 of 1,452 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2442024: 1,38011%
Drugs named by CMS: 12 in 2024, 10 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. Mary A. Stefanyszyn scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Stefanyszyn for performance year 2024, reported as part of a group. Dr. Stefanyszyn accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Stefanyszyn's MIPS scores, performance year 2024
- 96of 100Final score
- 95.8of 100Quality
- 94of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
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. Mary A. Stefanyszyn received $1,733 in industry payments from 2016 to 2025
CMS Open Payments shows 51 general payments to Dr. Stefanyszyn from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Merz North America, Inc. paid the most, $611.
General payments to Dr. Stefanyszyn by program year, 2016 to 2025
General payments to Dr. Stefanyszyn by kind, 2016 to 2025
- Food and beverage$1,69698%
- Education$382%
Companies that paid Dr. Stefanyszyn 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. Mary A. Stefanyszyn graduated from Harvard Medical School
Dr. Stefanyszyn graduated from Harvard Medical School in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary A. Stefanyszyn's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mary A. Stefanyszyn
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. Mary A. Stefanyszyn's NPI number?
Dr. Mary A. Stefanyszyn's NPI number is 1245239318. It was assigned on July 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary A. Stefanyszyn?
Dr. Mary A. Stefanyszyn is an ophthalmologist in Wayne, Pennsylvania. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Mary A. Stefanyszyn practice?
Dr. Stefanyszyn practices at 100 E Lancaster Ave, Wayne, PA 19087. Dr. Stefanyszyn's primary practice is Lankenau Medical Center in Wayne, Pennsylvania. Dmand AI also links Dr. Stefanyszyn to 2 medical groups.
What is Dr. Mary A. Stefanyszyn's office phone number?
The practice phone on file for Dr. Stefanyszyn is (610) 645-2000.
What is Dr. Mary A. Stefanyszyn's medical license number?
Dr. Stefanyszyn holds Pennsylvania license MD022299E.
Which hospitals is Dr. Mary A. Stefanyszyn affiliated with?
Dr. Stefanyszyn is affiliated with Lankenau Medical Center.
Does Dr. Mary A. Stefanyszyn accept Medicare?
Yes. CMS data shows Dr. Stefanyszyn billed Medicare for 10,162 services in 2024, and Dr. Stefanyszyn accepts Medicare assignment.
What is Dr. Mary A. Stefanyszyn's MIPS score?
Dr. Stefanyszyn's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mary A. Stefanyszyn see?
CMS counts 399 Medicare patients who saw Dr. Stefanyszyn in 2024, with an average age of 75.
What services does Dr. Mary A. Stefanyszyn bill to Medicare?
In 2024, Dr. Stefanyszyn's most billed Medicare services were injected or infused drug (J0588), office visit, established patient (99213) and office visit, established patient (99214).
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Where did Dr. Mary A. Stefanyszyn go to medical school?
Dr. Stefanyszyn graduated from Harvard Medical School in 1978.
What drugs does Dr. Mary A. Stefanyszyn prescribe most?
In 2024 Medicare Part D data, Dr. Stefanyszyn's most prescribed drugs by claims were Neomycin-Polymyxin-Dexameth, Erythromycin and Doxycycline Hyclate.
Has Dr. Mary A. Stefanyszyn received payments from drug or device companies?
CMS Open Payments shows $1,733 in general payments to Dr. Stefanyszyn from 12 companies from 2016 to 2025. The largest total came from Merz North America, Inc.
How long has Dr. Mary A. Stefanyszyn been practicing?
Dr. Stefanyszyn graduated from medical school in 1978, 48 years ago.
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