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

Ryan Constantine, MD, PHD

Individual provider Retina Specialist (Ophthalmology) Physician · NPI 1932527199

Ryan Constantine, MD, PHD is an Ophthalmology in Erie, Pennsylvania. Graduated from University of Utah School of Medicine in 2014, 12 years ago. Practices with Orion Eye Center LLC, a 6-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
12
Trained at
University of Utah School of Medicine
Licensed in
PA
In the registry since
2014
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

300 State St
Erie, PA 16507-1427
Phone: (814) 456-4241
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Retina Specialist (Ophthalmology) Physician (primary) Taxonomy 207WX0107X · Licence MD493400 (PA)

Record details

NPI number1932527199
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedApril 3, 2014
Last updated in NPPESJanuary 20, 2026
Certification dateJanuary 20, 2026
Mailing address300 State St Ste 201, Erie, PA 16507-1429

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF UTAH SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Orion Eye Center Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Erie