Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Erik Mark Massenzio, BA

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1093394769

Erik Mark Massenzio, BA practises Ophthalmology in Philadelphia, Pennsylvania. Graduated from Jefferson Medical College of Thomas Jefferson University in 2021, 5 years ago. Practices with Retinovitreous Associates Ltd, a 35-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
5
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
PA
In the registry since
2021
Specialties on file
2
What do these letters mean?
BA — Bachelor of Arts
An undergraduate arts degree.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Philadelphia, PA

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 833 Chestnut St Ste 220, Philadelphia, PA 19107-4405 — (215) 955-8465

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence MD489432 (PA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1093394769
Entity typeIndividual (Type 1)
GenderMale
Credentials BA
Sole proprietorNo
NPI enumeratedApril 7, 2021
Last updated in NPPESJune 23, 2025
Certification dateJune 23, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 2021 (5 years in practice)
Group practice Retinovitreous Associates Ltd — 35 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $2,394 32 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $1,252 3 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Retinovitreous Associates Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 35 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia