Dr. William L Petersen , MD
Ophthalmology • Massena, NY
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. William Petersen has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. William Petersen, MD was a registered Ophthalmology practicing in Massena, NY. Throughout an active medical career spanning 16 years, Dr. Petersen provided care at the practice location at 48 MAIN ST until profile deactivation on 2022-12-16.
Practice Location & Contact Primary Location
48 Main St
Massena, NY 136621984
Specialty Benchmarks & Practice Insights
Comparative analytics for Ophthalmology in Massena, NY
Practicing in Massena, NY (1980 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 207W00000X
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Technician/Technologist - Optician
Technician/Technologist - Optician
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on December 16, 2022
NPI status registered as active in NPPES database
Registered at 48 MAIN ST, MASSENA, NY 136621984 (Tel: 3157692484)
Registered at 12 ELM ST, POTSDAM, NY 136761989 (Tel: 3152658017)
Recorded as WILLIAM PETERSEN, MD
Ophthalmology (License #138970 in NY)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
Sign in to leave a review for Dr. William Petersen
Only verified registered users can submit ratings, post feedback, and upload facility photos.
NPI Administrative Meta
Mailing Address
12 Elm St
Potsdam, NY 136761989
Phone: 3152658017
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.